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Ricap09 Roma International Conference on Astroparticle Physics

13–16 May 2009
Roma
Europe/Rome timezone

Contribution List

130 out of 130 displayed
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  1. 39. Welcome
    Aldo Morselli (ROMA2)
    14/05/2009, 09:00
  2. 15. Welcome
    Anna Di Ciaccio (Istituto Nazionale di Fisica Nucleare)
    14/05/2009, 09:10
  3. 177. Dark Matter after LHC Run I: Clues to Unification
    Prof. Keith Olive (University of Minnesota)
    14/05/2009, 09:20
  4. 49. Models of supersymmetry for dark matter
    Prof. Carlos Munoz (Universidad Autonoma de Madrid UAM & Instituto de Física Teorica IFT-UAM/CSIC)
    14/05/2009, 09:45
    Supersymmetric models (with and without R parity conservation) and the associated particle candidates for dark matter (neutralino, sneutrino, gravitino) will be discussed in the light of experimental results.
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  5. 50. Dark Matter and 750 GeV resonance
    Prof. Yann mambrini (LPT Orsay)
    14/05/2009, 10:10
    Recently, ATLAS and CMS released their first analysis of the RUN II of the LHC. Their results seem to show an excess in the diphoton channel at 750 GeV, which could correspond to a (pseudo)scalar resonance with a relatively large width. We will show how this resonance can be embeded in models of dark matter, and the perspective of discoveries in the future direct and indirect detection experiments.
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  6. 195. Signatures of sneutrino dark matter in an extension of the CMSSM
    Genevieve Belanger (LAPTH)
    14/05/2009, 10:35
  7. 26. AUGER status and result
    Dr Corinne Berat (Laboratoire de Physique Subatomique et de Cosmologie (LPSC))
    14/05/2009, 11:25
    The Pierre Auger Observatory, in Argentina, is the present flagship experiment studying ultra-high energy cosmic rays. Facing the challenge due to low cosmic ray flux at the highest energies, the Observatory has been taking data since more than a decade, reaching an exposure of over 50 000 km2 sr yr. The combination of a large surface detector array and fluorescence telescopes provides a...
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  8. 25. Results from the telescope Array Experiment
    Prof. Charles Jui (University of Utah)
    14/05/2009, 11:50
    The Telescope Array (TA) is a hybrid experiment observing ultrahigh energy cosmic rays in the northern sky. Three fluorescence stations each view 108 degrees in azimuth and up to 30 degrees in elevation. They are located at the periphery of a ground array consisting of 507 plastic scintillator counters, of 1.2km spacing, and covering over 700 square kilometers. We will present the cosmic...
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  9. 27. Mass composition measured by LOFAR
    Joerg Hoerandel (Radboud University Nijmegen)
    14/05/2009, 12:15
    High-energy cosmic rays, impinging on the atmosphere of the Earth initiate cascades of secondary particles, the extensive air showers. The electrons and positrons in the air shower emit electromagnetic radiation. This emission is detected with the LOFAR radio telescope in the frequency range from 30 to 240 MHz. The data are used to determine the properties of the incoming cosmic rays. The...
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  10. 229. VERITAS latest results
    Prof. David Hanna (McGill University)
    14/05/2009, 12:40
    VERITAS is an array of four imaging atmospheric Cherenkov telescopes near Tucson, Arizona and is one of the world's most sensitive detectors of very high energy (VHE: >100 GeV) gamma rays and cosmic rays. The scientific reach of VERITAS covers the study of both Extragalactic and Galactic objects and the search for astrophysical Dark Matter. In this talk I will discuss the status of VERITAS...
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  11. 292. Arap Prize
    14/05/2009, 13:05
  12. 183. e-ASTROGAM A Future space based gamma-ray observatory in a new energy window
    Vincent Tatischeff
    14/05/2009, 14:30
    e-ASTROGAM is a gamma-ray observatory to be proposed as the M5 Medium-size mission of the European Space Agency. It is dedicated to the observation of the Universe with unprecedented sensitivity in the energy range 0.3-100 MeV, extending up to GeV energies, together with a groundbreaking polarization capability. e-ASTROGAM will operate as an open astronomical observatory, with a core science...
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  13. 179. First results of the HiSCORE timing array
    Dr Martin Tluczykont (University of Hamburg)
    14/05/2009, 14:30
    CR
    The very high energy gamma-ray regime is the key to several questions in high energy astrophysics, the most prominent being the search for the origin of cosmic rays. Observations of gamma rays up to several 100 TeV are particularly important to spectrally resolve the cutoff regime of the long-sought Pevatrons, the accelerators of PeV cosmic rays. The HiSCORE timing array is part of the...
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  14. 97. Measurement of the cosmic ray energy spectrum and composition with IceCube
    Timo Karg (DESY)
    14/05/2009, 14:30
    Nu
    The IceCube Neutrino Observatory at the geographic South Pole includes the cubic-kilometer deep-ice detector as well as a square-kilometer particle detector at the surface, IceTop. This unique combination allows measuring multiple components of cosmic-ray induced air showers in the PeV to EeV energy range: IceTop samples the electromagnetic component at the ground level and allows studying GeV...
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  15. 100. Neutrino propagation in the galactic dark matter halo
    Roberto Lineros (INFN)
    14/05/2009, 14:55
    Nu
    The observation of PeV neutrinos has opened a window to study astrophysics and New Physics processes. Among PeV neutrino observables, the neutrino flavor composition become very interesting because it can reveal underlying interactions during the neutrino propagation. We consider the effect of galactic dark matter interactions on the neutrino oscillations. We estimate the effective interaction...
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  16. 257. The Science Case for a future gamma-ray missions in the 300 KeV- 100 MeV domain
    Prof. Peter von Ballmoos (Institut de Recherche en Astrophysique et Planétologie, Toulouse)
    14/05/2009, 14:55
  17. 180. The gamma-ray observatory TAIGA: status and perspectives
    Prof. Leonid Kuzmichev (SINP MSU)
    14/05/2009, 15:00
    CR
    The gamma-ray observatory TAIGA (Tunka Advanced Instrument for cosmic ray physics and Gamma Astronomy) is designed for the study of gamma rays and fluxes of charged cosmic rays in the energy range 1013 eV – 1018 eV. The installation will include a network of wide-angle (FOV - 0.6 sr) Cherenkov stations and up to 16 IACTs ( FOV -10×10 degrees) on an area of 5 km² and muon detectors with a...
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  18. 52. Fermi bubbles: what do we know about them and where do they come from?
    Dmitry Malyshev (ECAP)
    14/05/2009, 15:20
    The Fermi bubbles are two gamma-ray lobes extending up to 55 degrees above and below the Galactic center. The Fermi bubbles are unique in that, in contrast to lobes in other galaxies, they were discovered in gamma rays, rather than radio waves or X rays. In the talk I will overview the observations of the Fermi bubbles in gamma rays, X rays, UV and radio waves. I will present a recent analysis...
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  19. 99. PWN as sources of high energy neutrinos
    Prof. Dafne Guetta (OAR INAF)
    14/05/2009, 15:20
    Nu
  20. 181. Astrophysical interpretation of Pierre Auger Observatory measurements of the UHECR energy spectrum and mass composition
    Armando Di Matteo (AQ)
    14/05/2009, 15:30
    CR
    We present a combined fit of a simple astrophysical model of UHECR sources to both the energy spectrum and mass composition data measured by the Pierre Auger Observatory. The fit has been performed for energies above 5 EeV, i.e. the region of the all-particle spectrum above the so-called "ankle" feature. The astrophysical model we adopted consists of identical sources uniformly distributed in...
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  21. 261. New results on the indirect search for dark matter using the ANTARES neutrino telescope
    Dr Christoph TONNIS
    14/05/2009, 15:45
    Nu
    Neutrino telescopes have a wide scientific scope. One of their main goals is the detection of dark matter, for which they have specific advantages. The understanding of the nature of dark matter requires a multi-front approach since we still do not know many of their properties. Neutrino telescopes offer the possibility of look at several kinds of sources, not all of them available to other...
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  22. 53. PeVatron in the Galact Center
    Dr Emmanuel Moulin (CEA Saclay)
    14/05/2009, 15:45
    The Galactic Centre region has been observed by the High Energy Stereoscopic System (H.E.S.S.) array of ground-based Cherenkov telescopes since 2004 leading to the detection of the very-high-energy (VHE, E > 100 GeV) gamma-ray source HESS J1745−290 spatially coincident with the supermassive black hole Sgr A*. Diffuse TeV gamma-ray emission has been detected along the Galactic plane, most...
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  23. 182. The Pierre Auger Observatory Upgrade
    Giovanni Marsella (LE)
    14/05/2009, 16:00
    CR
    It is planned to operate the Pierre Auger Observatory until the end of 2024. An Upgrade of the experiment has been proposed in order to provide additional measurements to allow to elucidate the mass composition and the origin of the flux suppression at the highest energies, to search for a flux contribution of protons up to the highest energies and to reach a sensitivity to a contribution as...
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  24. 102. Searches for diffuse fluxes of astrophysical neutrinos with the ANTARES telescope
    Luigi Antonio Fusco (BO)
    14/05/2009, 16:05
    Nu
    The ANTARES detector is the largest and longest operated neutrino telescope in the Northern Hemisphere. A highly-significant cosmic neutrino signal has been observed by the Antarctic IceCube detector and can be studied in details with ANTARES, exploiting the complementarity of its fields of view. All-flavour neutrino interactions can be observed and reconstructed by the experiment. Its good...
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  25. 226. Anomalies in the gamma-ray diffuse emission of the Galaxy and implications for the interpretation of IceCube results
    Dario Grasso (PI)
    14/05/2009, 16:10
    Several independent analyzes of Fermi-LAT results found evidences of a spatial dependence of the cosmic ray (CR) proton spectral index which is not accounted for in conventional models of CR transport in the Galaxy. Moreover, several CR experiments have established the presence of a CR spectral hardening above few hundred GeV. We show that these results may have a relevant impact on the...
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  26. 41. Exploiting the radio signal from air showers: the AERA progress
    Benoit REVENU (SUBATECH)
    14/05/2009, 17:00
    CR
    We will present the last results and status of the Auger Engineering Radio Array (AERA), located inside the Pierre Auger Observatory. AERA, with more than 150 radio stations spread over 17 km2, is the largest radio detector of extensive air showers above 1017 eV. The electric field emitted by secondary electrons and positrons allows to estimate all characteristics of the primary cosmic ray:...
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  27. 255. Modeling the Galactic center emission from GeV to PeV
    Antonio Marinelli (PI)
    14/05/2009, 17:00
    DM
  28. 269. Results and simulation of the prototype detection unit of KM3NeT-ARCA
    Christophe Maurice Ferdinand Hugon (GE)
    14/05/2009, 17:01
    Nu
    KM3NeT-ARCA is the successor of the ANTARES Mediterranean neutrino telescope. It is a km3 detector using a new design for the light detection units: the digital optical module. These optical modules were developed by the KM3NeT Collaboration to improve the detection capability of neutrino interactions in the fiducial volume thanks to their large total photocathode area, summed on the 31 three...
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  29. 200. Exotic needles in the Cherenkov telescopes haystack
    Michele Doro (PD)
    14/05/2009, 17:20
    DM
    Ground-based Imaging Cherenkov Telescopes observed the Cherenkov radiation emitted in extended atmospheric showers generated by cosmic gamma rays in the TeV regime. The rate of these events is normally overwhelmed by many orders of magnitude larger triggers from cosmic rays induced showers. A large fraction of these "background" events is vetoed at the on-line trigger level, but a substantial...
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  30. 101. Search for high energy neutrinos from bright GRBs with ANTARES
    Matteo Sanguineti (GE)
    14/05/2009, 17:25
    Nu
    The ANTARES telescope is currently the largest neutrino detector of the Northern Hemisphere, fully operational since 2008. The search for high-energy neutrinos from astrophysical sources is one of the main purposes of the ANTARES scientific project; among them gamma-ray bursts are thought to be site of hadronic acceleration, thus neutrinos are expected from the decay of charged mesons,...
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  31. 44. Measurement of the cosmic rays flux with the ANITAexperiment
    Daniel García-Fernandez
    14/05/2009, 17:30
    CR
    The ANITA experiment consists on an aerostatic balloon flying over Antarctica and carrying a payload with antennas. It was designed to detect the electric field of neutrino-induced showers. However, ANITA has detected the electric field of cosmic ray-induced showers and the ANITA collaboration has used these data to produce the first cosmic ray flux measurement obtained by employing radio as a...
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  32. 56. Search for annihilating Dark Matter towards dwarf galaxies by the Cherenkov Telescope Array
    Gonzalo Rodriguez Fernandez (ROMA2)
    14/05/2009, 17:45
    DM
    The standard model of cosmology indicates that approximately 27% of the energy density of the universe is in the form of dark matter. The nature of dark matter is an open question in modern physics. The concordance cosmological model ($\Lambda$CDM) suggests a non-baryonic dark matter compatible with a gas of cold and weakly interacting massive particles (WIMPs). Indirect dark matter searches...
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  33. 98. Baikal-GVD
    Dr Olga Suvorova (INR RAS)
    14/05/2009, 17:50
    Nu
    We present the status of newly constructed cluster of the Gigaton Volume Detector in Lake Baikal (Baikal-GVD) designed for registration of very high energy neutrinos of astrophysical origin. This “Dubna” cluster has been upgraded to its baseline configuration, with 288 optical modules (OMs) arranged on eight vertical strings. Thus the instrumented water volume has been gotten up to about 5.9...
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  34. 43. Status and perspectives of the radio detection technique of cosmic ray air showers
    Olaf Scholten (KVI/University of Groningen)
    14/05/2009, 18:00
    CR
    At LOFAR we measure the radio emission from extensive air showers (EAS) in the frequency band of 30-80 MHz in dual-polarized antennas. Through an accurate antenna calibration we can determine the complete set of four Stokes parameters that uniquely determine the linear and/or circular polarization of the radio signal for an EAS. The observed dependency of the circular polarization on azimuth...
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  35. 197. Reconstructing WIMP properties through an interplay of signal measurements
    Enrico Sessolo
    14/05/2009, 18:05
    DM
  36. 107. Juno
    Gioacchino Ranucci (MI)
    14/05/2009, 18:15
    Nu
    The JUNO Jiangmen Underground Neutrino Observatory, a 20 kton multi-purpose underground liquid scintillator detector, has been proposed and approved for realization in the south of China. After an intense design phase, the overall concept of the structure of the detector has been finalized, paving the way towards the construction of the several components and subsystems, which will compose it....
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  37. 199. New measurement of the angular power spectrum of anisotropies in the data of Fermi-LAT
    Mr Mattia Fornasa (School of Physics and Astronomy of the University of Nottingham)
    14/05/2009, 18:30
    DM
    The Diffuse Gamma-Ray Background (DGRB) collects the radiation produced by all those sources that are not bright enough to be resolved individually. Therefore, it represents an essential tool to study faint gamma-ray emitters, like star-forming or radio galaxies and the exotic Dark Matter. The anisotropy pattern of the DGRB is extremely informative: I will review the recent measurement of the...
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  38. 45. The ARCADE project
    Laura Valore (Istituto Nazionale di Fisica Nucleare)
    14/05/2009, 18:30
    CR
    The Atmospheric Research for Climate and Astroparticle DEtection (ARCADE) project started in 2012 and involves research groups from Italy (Naples, Turin and L'Aquila) and Colorado. The target of ARCADE is the comparison of the techniques mostly used in cosmic-rays and gamma-rays experiments to measure the atmospheric aerosol attenuation profiles of the UV light, for a better understanding of...
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  39. 108. The Luna experiment
    Carlo Broggini (Istituto Nazionale di Fisica Nucleare)
    14/05/2009, 18:40
    Nu
    The thermo-nuclear reactions responsible for the luminosity and for the chemical evolution of stars take place in a narrow energy window: the Gamow peak. The extremely low value of the cross section inside the Gamow peak has always prevented its direct measurement in a laboratory at the surface of the Earth, where the signal to background ratio is too small mainly because of cosmic ray...
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  40. 198. Particle dark matter signals in the anisotropic sky: a cross-correlations approach
    Marco Regis (TO)
    14/05/2009, 18:55
    DM
    Anisotropies in the electromagnetic emission induced by dark matter (DM) annihilation or decay in the extragalactic sky are a recent tool in the quest for a particle DM evidence. In this talk, I will review on-going searches involving the two-point angular cross-correlation signal between the multi-wavelength emission from WIMP DM and gravitational tracers of the DM distribution in the...
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  41. 285. The cosmic ray spectrum in the energy region between 10^12 - 10^16 eV measured by ARGO-YBJ
    Paolo Montini (ROMA2)
    14/05/2009, 19:00
    CR
    The ARGO-YBJ experiment is a full-coverage air shower detector operating at the Yangbajing International Cosmic Ray Observatory (Tibet, P.R China, 4300 m a.s.l.). The detector was in stable data taking in its full configuration from Nov. 2007 to Dec 2012. More than 10^11 events have been collected and reconstructed. Due to its characteristics (full-coverage, high segmentation,high altitude...
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  42. 251. Underground Study of Big Bang Nucleosynthesis in the Precision Era of Cosmology
    Carlo Gustavino (ROMA1)
    14/05/2009, 19:05
    Nu
    Big Bang Nucleosynthesis (BBN) is the first probe of cosmology and particle physics. Assuming Standard model of cosmology and particle physics , light elements such as deuterium, helium and lithium were produced in the first minutes of cosmic time. The amount of each primordial nuclide depends on the expansion rate of the Universe and on the baryon density . The expansion rate is governed by...
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  43. 284. On Fermi-LAT, H.E.S.S. and the Cherenkov Array Telescope Sensitivity to Dark Matter Annihilation
    Dr Farinaldo Queiroz (Max Planck Institute for Nuclear Physics - Heidelberg)
    14/05/2009, 19:20
    DM
    I discuss how one can extend Fermi-LAT and H.E.S.S. limits on gamma-ray lines from dark matter annihilation to energies larger than currently accessible. Moreover, I present Fermi-LAT, H.E.S.S. and the Cherenkov Array Telescope sensitivity to neutrino signals and show that we have already entered into a new era where gamma-ray telescopes are more sensitive than neutrino detectors to neutrino...
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  44. 243. Recent development on the realization of a 1-inch VSiPMT prototype
    Felicia Carla Tiziana Barbato (NA)
    14/05/2009, 19:20
    CR
    The VSiPMT (Vacuum Silicon PhotoMultiplier Tube) is an innovative design for a revolutionary hybrid photodetector. The idea, born with the purpose to use a SiPM for large detection volumes, consists in replacing the classical dynode chain with a SiPM. In this configuration, we match the large sensitive area of a photocathode with the performances of the SiPM technology, which therefore acts...
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  45. 234. A few eV sterile neutrino as partial dark matter
    Prof. subinoy das (IIA, Abangalore)
    14/05/2009, 19:30
    Nu
    Recent short baseline experiments (MiniBooNE and LSND) as well as reactor experiments (Daya bay and T2K) might be hinting for an extra eV scale light sterile neutrino state. But these results are in tension with the recent Planck data as it does not allow an extra thermalized neutrino. To alleviate this conflict, we propose a scenario where the light sterile neutrino is in thermal equilibrium...
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  46. 276. ...
    14/05/2009, 19:35
    CR
  47. 74. Highlights from the IceCube neutrino observatory
    Dr Juan Antonio Aguilar Sanchez (University of Geneva)
    15/05/2009, 09:00
    Nu
    In 2013 the IceCube Neutrino Observatory, a cubic-kilometer deep ice detector located at the geographic South Pole, observed a flux of high-energy neutrinos of extra-terrestrial origin marking the beginning of a new era in neutrino astronomy. The observed neutrino flux lies in the 30 TeV - 2 PeV energy range and its detection has been further confirmed by different analysis techniques and in...
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  48. 75. Results from the ANTARES neutrino telescope
    Agustin Sanchez Losa (BA)
    15/05/2009, 09:25
    Nu
    The ANTARES detector is an underwater neutrino telescope, the largest in the Northern Hemisphere and the first one ever built under the sea, located in the Mediterranean Sea 40 km off the Southern coast of France, at a depth of 2.5 km. It comprises 885 photomultiplier tubes distributed in twelve detection lines. The signal due to neutrinos is searched by reconstructing the tracks of secondary...
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  49. 77. From Gravitational Wave detection to Gravitational Wave astronomy
    Piero Rapagnani (Istituto Nazionale di Fisica Nucleare)
    15/05/2009, 09:50
    GW
  50. 78. Localization and broadband follow-up of the Gravitational-Wave Transient Gw150914
    Marica Branchesi (Istituto Nazionale di Fisica Nucleare)
    15/05/2009, 10:15
    GW
  51. 79. Electromagnetic follow ups of the GW event
    Dr Imre Bartos (Columbia University)
    15/05/2009, 10:40
    GW
  52. 217. The Fermi GBM gamma-ray burst and the Fermi LAT follow up of the GW event
    Elisabetta Bissaldi (BA)
    15/05/2009, 11:30
    GW
    "On behalf of the Fermi-GBM Collaboration" Since its launch in 2008, the Fermi Gamma-ray Burst Monitor (GBM) has triggered and located on average approximately two gamma-ray bursts (GRBs) every three days. Here we present the main results from the latest two catalogs provided by the Fermi GBM science team, namely the third GBM GRB catalog and the first GBM time-resolved spectral...
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  53. 81. Agile follow up of the GW event
    Marco Tavani (ROMA2)
    15/05/2009, 11:50
    GW
  54. 258. Integral follow up of the GW event
    Pietro Ubertini
    15/05/2009, 12:10
    GW
  55. 82. Multimessenger follow-up of the gravitational wave event GW150914 with ANTARES
    Dr Alexis Coleiro (APC / University Paris Diderot)
    15/05/2009, 12:30
    GW
    On September 14th 2015, LIGO/Virgo collaboration has detected the first significant gravitational wave event. A neutrino follow-up was performed using ANTARES and IceCube online data to search for a potential neutrino counterpart to this event. No neutrino candidate in both temporal and spatial coincidence with GW 150914 had been detected within +/- 500 s from the event. Consequently, the...
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  56. 259. GW Open Discussion
    15/05/2009, 12:50
    GW
  57. 218. Cosmic-ray electron+positron spectrum with the Fermi Large Area Telescope
    Raffaella Bonino (Istituto Nazionale di Fisica Nucleare)
    15/05/2009, 14:30
    CR
    We present a measurement of the inclusive cosmic-ray electron and positron (CRE) spectrum between 7 GeV and 2 TeV performed with almost seven years of data collected with the Fermi Large Area Telescope. The spectrum above 100 GeV can explore the properties of local CRE sources. Because of the long live time and the very large acceptance of the LAT, our data are the largest CRE sample...
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  58. 230. VHE pulsed gamma-ray emission from the Crab Pulsar by MAGIC
    Ms Roberta Zanin (IFAE)
    15/05/2009, 14:30
    The last six years have witnessed major revisions of our knowledge about the Crab Pulsar, the central engine of the remnant of the supernova explosion that occurred in 1054 AD. The consensus scenario for the origin of the high-energy pulsed emission has been challenged with the discovery of a very-high-energy power law tail extending up to ~400 GeV, above the expected spectral cut off at a few...
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  59. 187. DAMIC at SNOLAB: searching for low mass WIMPs with CCDs
    Paolo Privitera (INFN)
    15/05/2009, 14:31
    DM
  60. 222. Electron and Positron Fluxes in Primary Cosmic Rays Measured with the Alpha Magnetic Spectrometer on the International SpaceStation
    Dr Henning Gast (I. Physikalisches Institut B, RWTH Aachen)
    15/05/2009, 14:55
    CR
    Precision measurements by the Alpha Magnetic Spectrometer on the International Space Station of the primary cosmic-ray electron flux in the range 0.5 to 700 GeV and the positron flux in the range 0.5 to 500 GeV are presented. The electron flux and the positron flux each require a description beyond a single power-law spectrum. Both the electron flux and the positron flux change their behavior...
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  61. 233. Very-high-energy steady spectrum of Crab nebula
    Dr Federico Fraschetti (University of Arizona)
    15/05/2009, 14:55
    The very-high-energy steady emission (beyond 50 GeV) of the Crab nebula is believed to originate from Inverse Compton scattering of low energy photons off energetic electrons. However, the mechanism accelerating the electrons to TeV energies and the resulting particle distribution are still a topic of debate. Benefitting from a wealth of data collected with ground-based gamma-ray observatories...
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  62. 190. Seasonal variations of the rate of multiple - muons in the MACRO experiment in the Gran Sasso underground laboratory
    Francesco Ronga (LNF)
    15/05/2009, 15:01
    DM
    It's well known that the rate of cosmic ray muons depends from the atmospheric temperature, and that for events with a single muon the peak of rate is in summer, in the northern hemisphere. n 2015 the MINOS experiment, in USA, reported the seasonal modulation of the rate of cosmic ray multiple-muon events at two underground sites, the MINOS near detector and the MINOS far detector site at...
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  63. 253. Supernova Remnants with Fermi Large Area Telescope
    Micaela Caragiulo (BA)
    15/05/2009, 15:15
    The Large Area Telescope (LAT), onboard the Fermi satellite, proved to be, after more than 7 years of data taking, an excellent instrument to detect and observe Supernova Remnants (SNRs) in a range of energies running from few hundred MeV up to few hundred GeV. It provides essential information on physical processes that occur at the source, involving both accelerated leptons and hadrons, in...
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  64. 219. The proton and helium anomalies in the light of the Myriad model
    Pierre SALATI (LAPTh and Université Savoie Mont Blanc)
    15/05/2009, 15:15
    CR
    A hardening of the proton and helium fluxes is observed above a few hundreds of GeV/nuc. The actual distribution of the local sources of primary cosmic rays has been suggested as a potential solution to this puzzling behavior. Some authors even claim that a single source is responsible for the proton and helium anomalies. But how probable are such explanations ? To answer that question, I will...
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  65. 191. Dama/LIBRA
    Pierluigi Belli (ROMA2)
    15/05/2009, 15:31
    DM
    The DAMA/LIBRA set-up (about 250 kg highly radiopure NaI(Tl)) is running at Gran Sasso underground Laboratory. The positive results in terms of the model independent Dark Matter annual modulation signature and the results of recent investigations on possible diurnal effects and their implications will be presented. Presently DAMA/LIBRA is in data taking in the new configuration...
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  66. 254. The First Fermi-LAT SNR Catalog SNR and Cosmic Ray Implications
    Francesco De Palma (BA)
    15/05/2009, 15:35
    While supernova remnants (SNRs) are widely thought to be powerful cosmic-ray accelerators, indirect evidence comes from a small number of well-studied cases. Here we systematically determine the gamma-ray emission detected by the Fermi Large Area Telescope (LAT) from all known Galactic SNRs, disentangling them from the sea of cosmic-ray generated photons in the Galactic plane. Using LAT data...
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  67. 223. Antiproton Flux and Antiproton-to-Proton Flux Ration Measured by with the Alpha Magnetic Spectrometer on the International Space Station
    Dr Weiwei Xu (Massachusetts Institute of Technology)
    15/05/2009, 15:40
    CR
    A precision measurement by AMS of the antiproton flux and the antiproton-to-proton flux ratio in primary cosmic rays in the absolute rigidity range from 1 to 450 GV is presented based on 3.49 × 105 antiproton events and 2.42 × 109 proton events. The antiproton-to-proton flux ratio reaches a maximum at ∼20 GV and is rigidity independent above 60.3 GV
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  68. 203. Detection of VHE gamma-rays from AGN's with redshift close to z=1
    Andrew Taylor
    15/05/2009, 15:55
  69. 192. XENON1T
    Prof. Uwe Oberlack (Johannes Gutenberg University Mainz)
    15/05/2009, 16:01
    DM
    Establishing the nature of Dark Matter is one of the great challenges in science today. The XENON Dark Matter project has successfully established the dual phase liquid xenon time projection chamber as the world-leading technique in searches for Weakly Interacting Massive Particles (WIMPs). This year, we are starting the third generation of Dark Matter searches with the XENON1T experiment,...
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  70. 274. Interpretation of the cosmic ray positron and anti--proton fluxes
    Paolo Lipari (ROMA1)
    15/05/2009, 16:05
    CR
    In this work we discuss possible interpretations ofthe measurements of fluxes of positrons and antiproton in cosmic rays.We underline the interest of studying the ratios of the fluxesfor different particles.It is remarkable that the observed positron/antiproton ratio is consistent with the theoretical expectations (both in the spectral shape and in the relative normalization)of the ratio at...
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  71. 202. Limits on Lorentz invariance violation at the Planck energy scale from H.E.S.S. spectral analysis of the blazar Mrk 501
    Mr Matthias Lorentz (Irfu, CEA Saclay)
    15/05/2009, 17:00
    ome extensions to the Standard Model lead to the introduction of Lorentz symmetry breaking terms, expected to induce deviations from Lorentz symmetry around the Planck scale. A parameterization of Lorentz invariance violating (LIV) effects can be introduced by adding an effective term to the photon dispersion relation. This affects the kinematics of electron-positron pair creation by TeV gamma...
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  72. 225. Precision Measurement of Nuclei Fluxes and their Ratios in Primary Cosmic Rays with the Alpha Magnetic Spectrometer on the International Space Station
    Dr Melanie Heil (Massachusetts Institute of Technology)
    15/05/2009, 17:00
    CR
    The exact behavior of the nuclei fluxes with rigidity and how they relate to each other is important for understanding the production, acceleration and propagation mechanisms of charged cosmic rays. Precise measurements with the Alpha Magnetic Spectrometer on the International Space Station of the light nuclei fluxes and their ratios in primary cosmic rays with rigidities from 2 GV to 2 TV...
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  73. 188. The DarkSide Program for Direct Dark Matter Search
    Giuliana Fiorillo (Istituto Nazionale di Fisica Nucleare)
    15/05/2009, 17:01
    DM
  74. 204. HAWC upgrade with a sparse outrigger array
    Mr Vikas Joshi (Max Planck Institute for Nuclear Physics, Heidelberg, Germany)
    15/05/2009, 17:20
    The High Altitude Water Cherenkov (HAWC) high-energy gamma-ray observatory has recently been completed near the Sierra Negra in central Mexico. HAWC consists of 300 Water Cherenkov Detectors, each containing 200 tons of purified water and 4 PMT's (three 8” and one 10”), that cover a total surface area of 20,000 m^2. HAWC observes gamma rays in the 0.1–100 TeV range and has a sensitivity to...
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  75. 221. PAMELA's measurements of the January 6, 2014 solar energetic particle event
    Dr Alessandro Bruno (BA)
    15/05/2009, 17:25
    CR
  76. 189. Directional Dark Matter Detection with Two-Phase Argon TPC Detectors
    Susan Walker (Università degli Studi di Napoli "Federico II" & INFN Napoli)
    15/05/2009, 17:31
    DM
  77. 231. Recent results in gamma-ray astronomy with the ARGO-YBJ detector
    Tristano Di Girolamo (NA)
    15/05/2009, 17:40
    The ARGO-YBJ air shower detector has been in stable data taking for five years at the YangBaJing Cosmic Ray Laboratory (Tibet, P.R. China, 4300m a.s.l.) with a duty cycle >86% and an energy threshold of a few hundreds of GeV. With the scaler mode technique, the minimum threshold of 1 GeV can be reached. In this talk recent results in gamma-ray astronomy will be presented, including those from...
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  78. 220. The Solar Event of May 22 of 2013: observations by the PAMELA experiment
    Matteo Martucci (LNF)
    15/05/2009, 17:45
    CR
  79. 194. ZnWO4 anisotropic scintillator for Dark Matter investigation with thevdirectionality technique
    Riccardo Cerulli (Istituto Nazionale di Fisica Nucleare)
    15/05/2009, 17:51
    DM
  80. 275. Gamma ray astronomy above 100 TeV and the IceCube results
    Dr Silvia Vernetto (IFSI-INAF)
    15/05/2009, 18:05
    In this work we discuss the interest and scientific potential of galactic gamma astronomy at very high energy (E > 100 TeV),illustrating different predictions for the properties of the diffuse galactic gamma ray fluxes. For photons of such high energy it is very important to take into account absorption due to pair production interactions, including the contribution of interactions with...
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  81. 228. The FAST project - Next Generation UHECR Observatory
    Dr Toshihiro FUJII (ICRR, University of Tokyo)
    15/05/2009, 18:05
    CR
  82. 193. Prospects of Dark Matter Direct Detection on Dark Portals
    Dr Giorgio Arcadi (University of Goettingen)
    15/05/2009, 18:11
    DM
  83. 232. LATTES: a new gamma-ray detector concept for South America
    Dr Ruben Conceição (LIP)
    15/05/2009, 18:30
    Currently the detection of Very High Energy gamma-rays for astrophysics rely on the measurement of the Extensive Air Showers (EAS) either using Cherenkov detectors or EAS arrays with larger field of views but also larger energy thresholds. In this talk we present a novel hybrid detector concept for a EAS array with an improved sensitivity in the lower energies (~ 100 GeV). We discuss its main...
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  84. 227. The EEE Project, science in school: recent results on cosmic rays detection and performances
    Silvia Miozzi (LNF)
    15/05/2009, 18:30
    CR
    The EEE (Extreme Energy Event) project will study extensive air showers through the detection of the muon component by means of a network of tracking detectors, installed inside high schools distributed all over Italy. Project’s aim is to involve teachers and students in a frontier cosmic ray experiment, as well. The EEE telescope is based on a large but simplified and cheap version of the...
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  85. 277. RPC for gamma-ray detectors at high latitude
    Rinaldo Santonico (ROMA2)
    15/05/2009, 18:50
  86. 205. The High Energy Particle Detector on board of the CSES mission
    Dr Vincenzo Vitale (ROMA2)
    15/05/2009, 19:15
    The China Seismo-Electromagnetic Satellite (CSES) has the purpose to measure electromagnetic waves emissions, plasma properties and particles fluxes in the Earth ionosphere and magnetosphere, to investigate the possible correlation with seismic events. Phenomena related to the solar-terrestrial interactions, such as Coronal Mass Ejections (CMEs), and the study of low energy cosmic rays are...
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  87. 206. Cut-off Characterization of Bright Fermi Sources: Current instrument limits and future possibilities.
    Mr Carlo Romoli (Dublin Institute for Advanced Studies)
    15/05/2009, 19:16
  88. 207. Mid latitude sporadic E-layer Variability during ascending phase of solar cycle 24
    Dr Pramod Kumar Purohit (National Institute of Technical Teachers’ Training and Research, Bhopal – 462002, MP, India.)
    15/05/2009, 19:17
  89. 208. Spikes of supra-thermal particles at interplanetary shock waves
    Dr Federico Fraschetti (University of Arizona)
    15/05/2009, 19:18
  90. 209. Feasibility study of the 13C(α, n)16O reaction at LUNA
    Dr Izabela Anna Kochanek (LNGS)
    15/05/2009, 19:19
  91. 210. Cosmic rays and their modulation in the heliosphere by studying gamma rays from the Sun with Fermi-LAT: updated models
    Dr Elena Orlando (Stanford University)
    15/05/2009, 19:20
  92. 211. Observations of the gamma-ray emission from the quiescent Sun with the Fermi Large Area Telescope during the first 7 years in orbit
    Silvia Raino' (BA)
    15/05/2009, 19:21
  93. 212. A Major Upgrade of the H.E.S.S. Cherenkov Cameras
    Ms Iryna Lypova
    15/05/2009, 19:22
  94. 213. Results from a Deep Hard X-Ray AGN Survey
    Dr Eugenio Bottacini (Stanford University)
    15/05/2009, 19:23
  95. 250. Prospects for detecting Gamma-Ray Bursts with the Cherenkov Telescope Array
    Elisabetta Bissaldi (BA)
    15/05/2009, 19:24
  96. 252. Development of a SiPM based camera for Cherenkov Telescope Array
    Elisabetta Bissaldi (BA)
    15/05/2009, 19:25
  97. 256. The Fermi-GBM Gamma-Ray Burst Catalogs: The First Six Years
    Elisabetta Bissaldi (BA)
    15/05/2009, 19:26
  98. 280. The pLISA project in ASTERICS
    Giulia De Bonis (ROMA1)
    15/05/2009, 19:27
  99. 286. Design and Production of the Digital Optical Modules of the KM3NeT project
    Emanuele Leonora (CT)
    15/05/2009, 19:28
  100. 288. Precision Timing and Triggering for distributed astroparticle experiments
    Dr Ralf Wischnewski (DESY)
    15/05/2009, 19:29
  101. 289. Z' portal for a keV dark matter
    Ms Maíra Dutra (Laboratoire de Physique Théorique)
    15/05/2009, 19:30
    While astrophysical evidences for the existence of dark matter (DM) have been accumulated during the past decades, it is still not understood the fundamental physics involved. No unambiguous positive signal of DM particles have been found in searches specially dedicated to the well motivated WIMP candidates, whose mass vary from GeV to a few TeV. This encourage us to consider non-standard...
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  102. 293. Measuring space-time fuzziness with high energy gamma-ray detectors
    Dr Andrea Rappoldi (PV)
    15/05/2009, 19:31
    There are several suggestions to probe space-time fuzziness (also space-time foam) due to the quantum mechanics nature of space-time. These effects are predicted to be very small, being related to the Planck length, so that the only hope to experimentally detect them is to look at propagation of particles along cosmological distances. A fenomenological approach suggests that photons from...
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  103. 214. CaloCube: a novel calorimeter for high-energy cosmic rays in space
    Paolo Walter Cattaneo (PV)
    15/05/2009, 19:32
    The direct observation of high-energy cosmic rays, up to the PeV region needs highly performing calorimeters. Space operation requires great effort in optimizing size and mass. Calocube is a homogeneous calorimeter whose basic geometry is cubic and isotropic, so as to detect particles from every direction, maximizing the acceptance. High ranularity is obtained by filling the volume with...
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  104. 294. White Rabbit Facility
    Gonzalo Rodriguez Fernandez (ROMA2)
    15/05/2009, 19:33
  105. 295. A TIME-DEPENDENT SEARCH FOR HIGH ENERGY NEUTRINOS FROM BRIGHT GRBs WITH ANTARES
    Silvia Celli (GSSI)
    15/05/2009, 19:34
  106. 235. The PAMELA Experiment: A decade of Cosmic Rays Investigation
    Riccardo Munini (TS)
    16/05/2009, 09:00
  107. 236. The AMS-02 detector on the International Space Station - Status and highlights, after the first 5 years on orbit
    Matteo Duranti (PG)
    16/05/2009, 09:25
    The AMS-02 detector is operating on the International Space Station (ISS) since May the 19th, 2011. More than 80 billion events have been collected by the instrument in the first 5 years of data taking. This unprecedented amount of data is being used to perform accurate measurements of the different Cosmic Rays components. In this contribution, the published results and the highlights of the...
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  108. 237. The Fermi Telescope results and Future space based gamma-ray observatories
    Julie McEnery
    16/05/2009, 09:50
  109. 238. First data from the DAMPE space mission
    Ivan De Mitri (LE)
    16/05/2009, 10:15
    The DAMPE (DArk Matter Particle Explorer) satellite was launched on December 17, 2015 and is in smooth data taking since few days after. It was designed in order to properly work for at least three years and, thanks to its large geometric factor (about 0.3 m2 sr for protons and nuclei), is integrating one of the largest exposure for galactic cosmic ray studies in space. Even if primarly...
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  110. 241. High-Energy Emission from Starburst Galaxies
    Dr Massimo PERSIC (INAF+INFN Trieste)
    16/05/2009, 10:40
    Detection of high-energy gamma-ray emission from starburst galaxies (such as nearby M82 and NGC 253, and faraway Arp 220) has established a direct link between leptonic and hadronic processes in an extragalactic non-AGN environment. We review the most relevant aspects of these processes,and contrast theoretical predictions with available radio and gamma-ray measurements, in order to determine...
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  111. 120. HAWC
    Sabrina Casanova (Ruhr Universitaet Bochum)
    16/05/2009, 11:30
  112. 239. Gamma-ray Signatures of Dark Matter
    Mr Marco CIRELLI (IPhT CNRS CEA/Saclay)
    16/05/2009, 11:55
    I will briefly review the different ways in which Dark Matter (annihilations or decays) can produce high energy photons, and then focus on some current interesting cases from the experiments (and their phenomenological interpretation).
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  113. 196. Background systematics for Dark Matter Searches
    Dr Christoph Weniger (GRAPPA, University of Amsterdam)
    16/05/2009, 12:25
  114. 240. Hadronic interactions and cosmic rays physics
    Dr Ralph Engel (Karlsruhe Institute of Technology (KIT))
    16/05/2009, 12:50
  115. 117. HESS-II - Gamma ray astronomy from 20 GeV to hundreds of TeV's
    Dr Mathieu de Naurois (LLR Ecole Polytechnique - IN2P3/CNRS)
    16/05/2009, 14:30
  116. 242. The CTA Observatory
    Dr Lucio Angelo Antonelli (INAF-Osservatorio Astronomico di Roma & ASDC)
    16/05/2009, 14:55
  117. 119. The ASTRI prototype and mini-array: telescopes precursors for the Cherenkov Telescope Array (CTA)
    Dr Lucio Angelo Antonelli (INAF-Osservatorio Astronomico di Roma & ASDC)
    16/05/2009, 15:20
  118. 122. The Next Generation All-Sky TeV Gamma-Ray Observatory
    Dr Gus Sinnis (Los Alamos National Laboratory)
    16/05/2009, 15:45
  119. 76. Km3Net
    Mr Juergen Brunner (CPPM)
    16/05/2009, 16:10
  120. 262. ..
  121. 270. ...
  122. 271. ...
  123. 291. ...
  124. 80. Fermi follow up of the GW event
    Nicola Omodei (INFN)
  125. 201. Isotropic extragalactic flux from dark matter annihilations
    Dr Celine Boehm (IPPP, Durham University)
  126. 121. LHAASO
    Hu HongBo
  127. 215. Measuring space-time fuzziness with high energy gamma-ray detectors
    Paolo Walter Cattaneo (PV)
  128. 216. Recent development on the realization of a 1-inch VSiPMT prototype
    Felicia Carla Tiziana Barbato (NA)
  129. 96. Riccardo Cerulli - ZnWO4 anisotropic scintillator for Dark Matter investigation with thevdirectionality technique
    Riccardo Cerulli (Istituto Nazionale di Fisica Nucleare)
  130. 186. Vikas Joshi - HAWC upgrade with a sparse outrigger array