Anna Di Ciaccio
(Istituto Nazionale di Fisica Nucleare)
14/05/2009, 09:10
Prof.
Keith Olive
(University of Minnesota)
14/05/2009, 09:20
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.
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.
Genevieve Belanger
(LAPTH)
14/05/2009, 10:35
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...
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...
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...
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...
Dr
Martin Tluczykont
(University of Hamburg)
14/05/2009, 14:30
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...
Prof.
Peter von Ballmoos
(Institut de Recherche en Astrophysique et Planétologie, Toulouse)
14/05/2009, 14:55
Prof.
Leonid Kuzmichev
(SINP MSU)
14/05/2009, 15:00
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...
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...
Antonio Marinelli
(PI)
14/05/2009, 17:00
Christophe Maurice Ferdinand Hugon
(GE)
14/05/2009, 17:01
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...
Gonzalo Rodriguez Fernandez
(ROMA2)
14/05/2009, 17:45
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...
Dr
Olga Suvorova
(INR RAS)
14/05/2009, 17:50
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...
Olaf Scholten
(KVI/University of Groningen)
14/05/2009, 18:00
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...
Enrico Sessolo
14/05/2009, 18:05
Mr
Mattia Fornasa
(School of Physics and Astronomy of the University of Nottingham)
14/05/2009, 18:30
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...
Laura Valore
(Istituto Nazionale di Fisica Nucleare)
14/05/2009, 18:30
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...
Carlo Broggini
(Istituto Nazionale di Fisica Nucleare)
14/05/2009, 18:40
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...
Dr
Farinaldo Queiroz
(Max Planck Institute for Nuclear Physics - Heidelberg)
14/05/2009, 19:20
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...
Felicia Carla Tiziana Barbato
(NA)
14/05/2009, 19:20
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...
Prof.
subinoy das
(IIA, Abangalore)
14/05/2009, 19:30
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...
Dr
Juan Antonio Aguilar Sanchez
(University of Geneva)
15/05/2009, 09:00
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...
Piero Rapagnani
(Istituto Nazionale di Fisica Nucleare)
15/05/2009, 09:50
Marica Branchesi
(Istituto Nazionale di Fisica Nucleare)
15/05/2009, 10:15
Dr
Imre Bartos
(Columbia University)
15/05/2009, 10:40
Elisabetta Bissaldi
(BA)
15/05/2009, 11:30
"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...
Dr
Alexis Coleiro
(APC / University Paris Diderot)
15/05/2009, 12:30
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...
Raffaella Bonino
(Istituto Nazionale di Fisica Nucleare)
15/05/2009, 14:30
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...
Paolo Privitera
(INFN)
15/05/2009, 14:31
Dr
Henning Gast
(I. Physikalisches Institut B, RWTH Aachen)
15/05/2009, 14:55
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...
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...
Pierre SALATI
(LAPTh and Université Savoie Mont Blanc)
15/05/2009, 15:15
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...
Dr
Weiwei Xu
(Massachusetts Institute of Technology)
15/05/2009, 15:40
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
Andrew Taylor
15/05/2009, 15:55
Prof.
Uwe Oberlack
(Johannes Gutenberg University Mainz)
15/05/2009, 16:01
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,...
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...
Dr
Melanie Heil
(Massachusetts Institute of Technology)
15/05/2009, 17:00
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...
Giuliana Fiorillo
(Istituto Nazionale di Fisica Nucleare)
15/05/2009, 17:01
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...
Dr
Alessandro Bruno
(BA)
15/05/2009, 17:25
Susan Walker
(Università degli Studi di Napoli "Federico II" & INFN Napoli)
15/05/2009, 17:31
Matteo Martucci
(LNF)
15/05/2009, 17:45
Riccardo Cerulli
(Istituto Nazionale di Fisica Nucleare)
15/05/2009, 17:51
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...
Dr
Toshihiro FUJII
(ICRR, University of Tokyo)
15/05/2009, 18:05
Dr
Giorgio Arcadi
(University of Goettingen)
15/05/2009, 18:11
Rinaldo Santonico
(ROMA2)
15/05/2009, 18:50
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...
Mr
Carlo Romoli
(Dublin Institute for Advanced Studies)
15/05/2009, 19:16
Dr
Pramod Kumar Purohit
(National Institute of Technical Teachers’ Training and Research, Bhopal – 462002, MP, India.)
15/05/2009, 19:17
Dr
Federico Fraschetti
(University of Arizona)
15/05/2009, 19:18
Dr
Izabela Anna Kochanek
(LNGS)
15/05/2009, 19:19
Dr
Elena Orlando
(Stanford University)
15/05/2009, 19:20
Silvia Raino'
(BA)
15/05/2009, 19:21
Dr
Eugenio Bottacini
(Stanford University)
15/05/2009, 19:23
Elisabetta Bissaldi
(BA)
15/05/2009, 19:24
Elisabetta Bissaldi
(BA)
15/05/2009, 19:25
Elisabetta Bissaldi
(BA)
15/05/2009, 19:26
Emanuele Leonora
(CT)
15/05/2009, 19:28
Dr
Ralf Wischnewski
(DESY)
15/05/2009, 19:29
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...
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...
Silvia Celli
(GSSI)
15/05/2009, 19:34
Riccardo Munini
(TS)
16/05/2009, 09:00
Julie McEnery
16/05/2009, 09:50
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...
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).
Dr
Christoph Weniger
(GRAPPA, University of Amsterdam)
16/05/2009, 12:25
Dr
Ralph Engel
(Karlsruhe Institute of Technology (KIT))
16/05/2009, 12:50
Dr
Mathieu de Naurois
(LLR Ecole Polytechnique - IN2P3/CNRS)
16/05/2009, 14:30
Dr
Lucio Angelo Antonelli
(INAF-Osservatorio Astronomico di Roma & ASDC)
16/05/2009, 14:55
Dr
Lucio Angelo Antonelli
(INAF-Osservatorio Astronomico di Roma & ASDC)
16/05/2009, 15:20
Dr
Gus Sinnis
(Los Alamos National Laboratory)
16/05/2009, 15:45
Dr
Celine Boehm
(IPPP, Durham University)
Felicia Carla Tiziana Barbato
(NA)
Riccardo Cerulli
(Istituto Nazionale di Fisica Nucleare)
