thomas gaisser
(University of Delaware)
9/30/14, 10:00 AM
Piera Luisa Ghia
(LPNHE-CNRS, Paris)
9/30/14, 12:25 PM
Ultra-high energy cosmic rays (UHECR, E>10^18 eV) can be studied only through the giant air-showers they produce in atmosphere. First UHECRs were detected 50 years ago by the pioneering Volcano Ranch air-shower array. Since then, many more UHECR data have been collected, by larger and higher quality experiments that have followed each other in half a century. We make a retrospective survey of...
Dr
Riccardo Cerulli
(INFN)
9/30/14, 2:00 PM
oral
The DAMA/LIBRA set-up (about 250 kg highly radiopure NaI(Tl)) is running at the Gran Sasso National Laboratory of INFN. The cumulative DAMA/LIBRA-phase1 data (1.04 ton x year) have been released; the data of the former DAMA/NaI and of the DAMA/LIBRA-phase1 (cumulative exposure 1.33 ton x yr) satisfy all the many requirements of the Dark Matter annual modulation signature at 9.3 sigma...
Dr
Vladimir Aynutdinov
(INR RAS)
9/30/14, 2:00 PM
poster
The first stage of the GVD-cluster which consists of a five strings is deployed in April 2014 in Lake Baikal. We review the architecture of the GVD data acquisition system and describe the configuration and design of the 2014 engineering array.
Dr
Sonja Orrigo
(IFIC-CSIC Valencia, Spain)
9/30/14, 2:20 PM
oral
The XENON program aims at the direct detection of dark matter in the form of Weakly Interacting Massive Particles (WIMPs). A two-phase Time Projection Chamber (TPC) filled with ultra pure liquid xenon (LXe) is used for detecting nuclear recoils from WIMPs scattering off the Xe nuclei.
The XENON100 experiment is the second phase of the XENON program. It has a total mass of 161 kg of LXe,...
Evangelia Drakopoulou
(N.C.S.R. Demokritos)
9/30/14, 2:20 PM
poster
KM3NeT is a European deep-sea research infrastructure that will host a neutrino telescope with a volume of several cubic kilometers at the bottom of the Mediterranean Sea. The telescope will search for galactic and extragalactic neutrinos from distant astrophysical sources like gamma ray bursts, super-novae or colliding stars. The analyses performed in large ice and water Cherenkov detectors...
Mr
Miguel Ángel Oliván
(Universidad de Zaragoza)
9/30/14, 2:40 PM
oral
ANAIS (Annual modulation with NAI Scintillators) experiment will look for dark matter annual modulation with 250 kg of ultra-pure NaI(Tl) scintillators at the Canfranc Underground Laboratory (LSC), aiming to confirm the DAMA/LIBRA positive signal in a model-independent way. The detector will consist of 20 modules, each of them coupled to two photomultiplier tubes (PMTs). Two 12.5 kg each...
Dr
Daniel Nieto Castano
(Columbia University)
9/30/14, 3:00 PM
oral
The standard model of cosmology requires dark matter (DM) to account for the 83% of the total mass density of the Universe. Assuming that the DM is composed of self-annihilating weakly interacting massive particles (WIMPs), its nature could be unraveled through the detection of the annihilation products, including photons with energies up to the WIMP mass. Annihilation of WIMPs with masses...
Ian Shoemaker
(CP3-Origins, University of Southern Denmark)
9/30/14, 3:00 PM
poster
The IceCube experiment has recently detected the highest-energy neutrino events yet recorded. This data is remarkable both for the significant excess of neutrino events above known backgrounds, and also for the conspicuous lack of events both above and below 1 PeV. I’ll discuss a simple model of neutrino self-interactions mediated by a MeV-scale boson that can account for these peculiar...
Dr
Alessio Caminata
(INFN - Genova)
9/30/14, 4:15 PM
oral
The Borexino detector has convincingly shown its outstanding performances in the in the low energy, sub-MeV regime through its unprecedented accomplishments in the solar and geo neutrinos detection. These performances make it the ideal tool to accomplish a state-of-the-art experiment able to test unambiguously the long-standing issue of the existence of a sterile neutrino, as suggested by the...
Dr
Alfio Rizzo
(Columbia University)
9/30/14, 4:15 PM
oral
The XENON Dark Matter Experiment has been ongoing at LNGS since 2005 with the goal of searching for dark matter WIMPs with liquid xenon as target and detector material. With detectors of increasing target mass and decreasing background, the XENON program has achieved competitive limits on WIMP-nucleon interaction couplings, but also on axions and axion like particles.
With the start of the...
Mr
Eric Flumerfelt
(University of Tennessee)
9/30/14, 4:35 PM
The NOvA Experiment at Fermilab is a long baseline accelerator neutrino experiment designed to measure neutrino flavor oscillations. The NOvA detectors began commissioning and collecting initial data in November 2011 and completed construction in July 2014. The experiment features a highly segmented,
"totally active", 14 kT Far Detector optimized for the detection of nu_e interactions and...
Dr
Francesco Ronga
(INFN)
9/30/14, 4:55 PM
oral
The possibility to have super-heavy ultradense quark nuggets as dark matter candidates has been stressed again in recent times. This is due probably to the negative dark matter searches in LHC and in the direct and indirect experiments.
Nuclearites are an example of compact objects that could be constituents of the dark matter. Nuclearites of high mass could be confused with meteors.
I...
Dr
Nicoletta Mauri
(University of Bologna and INFN)
9/30/14, 4:55 PM
oral
The atmospheric muon charge ratio, defined as the number of positive over negative charged muons, is a highly informative observable both for cosmic rays and particle physics. It allows studying the features of high-energy hadronic interactions in the forward region and the composition of primary cosmic rays.
We present a review of results from underground experiments measuring the charge...
Prof.
Gennadii Volkov
(PNPI -Kurchatov Nuclear Centre)
9/30/14, 5:15 PM
poster
Based on our understanding of the extended theory of relativity, the dark matter could have a new exotic spin structure. Understanding the role of spin in the expanded theory of relativity can be paramount in solving some significant problems of the particle physics as well as in the formation of the visible part of the universe. We consider how in the ternary neutrino model...
Dr
Daniel Nieto Castano
(Columbia University)
9/30/14, 6:30 PM
poster
Detections of the electromagnetic counterparts to gravitational wave (GW) observations will be critical to understanding the astrophysical phenomena involved. However, in many cases – especially early in the advanced LIGO/Virgo era – the localization of GW transients will be poor, and follow-up observations will be required to rapidly search 100 – 1000 square degrees of the sky. Relatively few...
Ms
Silvia Adrián Martínez
(Universidad Politécnica de Valencia)
9/30/14, 6:50 PM
Models where Dark Matter (DM) is secluded from the Standard Model via a mediator have increased their presence during the last decade to explain some experimental observations. This is a special scenario where DM, which would gravitationally accumulate in sources like the Sun, the Earth or the Galactic Centre, is annihilated into a non-standard Model mediator which subsequently decays into...
Prof.
Daniele Fargion
(ROMA1)
9/30/14, 7:10 PM
poster
Highest energy neutrino (above atmospheric noise) has been disentangled recently by ICECUBE. The dominance of the Cascade Shower events over muon neutrino tracks has been well established; the absence of the Glashow anti neutrino - electron resonance has been also noted. Therefore the probable paucity of Tens PeV up to EeV neutrino flux makes still difficult the fluorescence detection of the...
Dr
Manuel Bou-Cabo
(UPV)
9/30/14, 7:30 PM
oral
The ANTARES neutrino telescope is the largest water Cherenkov neutrino telescope in operation in the Northern hemisphere, installed in the Mediterranean Sea. One of the main objectives of ANTARES is the searches for neutrinos produced in self-annihilation of Dark Matter particles. Results on the search for Dark Matter annihilations in the Sun will be presented. The obtained competitive limits...
Dr
Emanuele Leonora
(INFN-sezione di Catania)
9/30/14, 7:50 PM
poster
The KM3NeT European experiment aims to construct a large volume underwater neutrino telescope, to be installed in the depths of the Mediterranean Sea. Thanks to a dedicated funding provided by the Italian Ministry of Education, University and Research (MIUR) with PON 2007-2013 resources, in a first phase, commonly referred as KM3NeT-Italia, an 8-towers detector will be constructed, that shares...
Dr
Maria Grazia Pellegriti
(LNS-INFN)
9/30/14, 8:10 PM
poster
The Nemo Phase II tower has been successfully taking data over one year. It has been installed on march the 23rd 2013 at Capo Passero, Italy, at 3500 m depth. The 8-floor tower hosts 32 10-inch PMT's.
Results of background measurements as well as environmental parameters will be presented. During more than one year long measurements, the analyzed rates show stable and low baseline values,...
Prof.
Eli Waxman
(Weizmann Institute)
10/1/14, 9:00 AM
oral
Dr
Fabian Schüssler
(Irfu, CEA-Saclay)
10/1/14, 10:10 AM
oral
Two Northern hemisphere neutrino telescopes are currently searching for astrophysical neutrinos in the TeV/PeV range: ANTARES and Baikal. Both observatories utilize various signatures like a high energy excess over the atmospheric neutrino flux, searches for localized neutrino sources of various extensions and multi-messenger analyses based on time and/or space coincidences with other cosmic...
Andrea Chiavassa
(Universita` agli Studi di Torino)
10/1/14, 11:15 AM
oral
I will present the latest results obtained by EAS experiments operating in the 10^14-10^18 eV energy range, highlighting the major achievements, relating them with higher and lower energies measurements.
The more relevant contributions to the systematic errors in the primary energy and mass determination by EAS experiments will be discussed.
In conclusion I will present and discuss a...
Mrs
iIsabelle Lhenry-Yvon
(Institut de Physique Nucléaire d'Orsay)
10/1/14, 11:50 AM
The Pierre Auger Observatory has been designed to investigate the origin and nature of Ultra High Energy Cosmic rays with energies from 1017 to 10^20 eV. In this paper we will review some of the most recent results obtained from data of the Pierre Auger Observatory, namely the spectrum of cosmic rays, the anisotropies in arrival directions and the studies related to mass composition and to the...
Prof.
Dafne Guetta
(OAR INAF)
10/1/14, 12:25 PM
oral
I will review several models for the flux of high and ultra high energy neutrinos from astrophysical sources.
I will discuss the constraints that can be imposed from the IceCube data and that will be imposed by the next generation ultra high energy neutrino telescope like ARA.
Mr
Thorsten Glüsenkamp
(DESY)
10/1/14, 2:00 PM
The recent discovery of a diffuse neutrino flux around PeV energies raises the question which populations of astrophysical sources contribute to this diffuse signal. One extragalactic candidate source population to produce high-energy neutrinos are Blazars.
We present results from a likelihood analysis searching for cumulative neutrino emission from Blazar populations selected with the 2nd...
Mr
López-Coto Rubén
(IFAE)
10/1/14, 2:00 PM
oral
The pulsar wind nebula (PWN) 3C 58 is one of the historical very-high-energy (VHE; E>100 GeV) gamma-ray source candidates.
It is energized by one of the highest spin-down power pulsars known (5% of Crab pulsar) and it has been compared to the Crab Nebula due to their morphological similarities. This object was previously observed by imaging atmospheric Cherenkov telescopes (Whipple, VERITAS...
Dr
Andres Sandoval
(Instituto de Fisica, UNAM, Mexico)
10/1/14, 2:30 PM
The High Altitude Water Cherenkov (HAWC) Observatory is being constructed at the Volcan Sierra Negra in Mexico (latitude 19o N) at 4,100m altitude. Having a modular design of 300 water Cherenkov detectors over an area of 22,000 m2 it is designed to survey continuously the sky overhead with an instantaneous field of view of 2sr detecting air-showers from cosmic and gamma-rays at energies from...
Mr
Ruoyu Liu
(Max-Planck-Institute for Nuclear Physics (MPIK))
10/1/14, 2:40 PM
oral
We argue that the excess of sub-PeV/PeV neutrinos recently reported by IceCube could plausibly originate through pion-production processes in the same sources responsible for cosmic rays (CRs) with energy above the second knee around 10^{18}eV. The pion production efficiency for escaping CRs that produce PeV neutrinos is required to be >0.1 in such sources. On the basis of current data, we...
Mrs
Roberta for The Pierre Auger Collaboration Colalillo
(NA)
10/1/14, 2:50 PM
oral
The Pierre Auger Observatory, located in Argentina, provides an unprecedented integrated aperture for the search of photons with energy above 10^17 eV in a large portion of the southern sky. We will discuss the results obtained with fluorescence and surface detectors in diffuse and directional searches for primary photons in the EeV energy range.
Dr
Narek Sahakyan
(National Academy of Sciences of the Republic of Armenia and ICRANet)
10/1/14, 3:00 PM
The recent results from ground based gamma-ray detectors (HESS, MAGIC, VERITAS) provides a population of TeV galactic gamma-ray sources which are potential sources of high energy neutrinos. Since the gamma-rays and neutrinos are produced from decays of neutral and charged pions, the flux of TeV gamma-rays can be used to estimate the upper limit of neutrino flux and vice versa; detectability of...
Ryan Chaves
(LUPM/CNRS)
10/1/14, 3:10 PM
oral
After a decade-long survey of the Galactic plane, the H.E.S.S. telescopes have amassed an unprecedented VHE gamma-ray dataset that continues to reveal new insights into the Galaxy at TeV energies. A 28-m class telescope was recently added to the now 5-telescope array, making it the first hybrid system in VHE astronomy. The upgrade further enhances the detection capabilities of H.E.S.S. and...
Dr
Pol Bordas
(Max-Planck-Insitut für Kernphysik)
10/1/14, 3:30 PM
oral
We report on the observations of gamma-ray emitting binaries obtained with the High Energy Stereoscopic System of Cherenkov telescopes. Recent results on PSR B1259-63, HESS J0632+057 and HESS J1018-589 will be reviewed. In the case of PSR B1259-63, a detailed multiwavelength campaign from radio to VHEs has been organized to follow its periastron passage in 2014, including also the occurrence...
Prof.
Zhan-Arys Dzhilkibaev
(Institute for neuclear research, Moscow)
10/1/14, 4:30 PM
The second-stage neutrino telescope Baikal-GVD in Lake Baikal will be a research infrastructure aimed mainly at studying astrophysical neutrino fluxes by recording the Cherenkov radiation of the secondary muons and showers generated in neutrino interactions. The design for the Baikal-GVD neutrino telescope is an array of photomultiplier tubes each enclosed in a transparent pressure sphere to...
Luigi Antonio Fusco
(BO)
10/1/14, 5:00 PM
oral
The ANTARES neutrino telescope, located at a depth of 2475 m under the Mediterranean Sea, 42 km from Toulon, France, consists of a three dimensional array of 885 10-inch photomultiplier tubes, distributed along twelve vertical lines. It is currently the largest operating underwater neutrino telescope and its main goal is to search for high energy neutrinos of cosmic origin.
The search for a...
Giulia De Bonis
(ROMA1)
10/1/14, 5:20 PM
oral
The key-word of modern astronomy and astrophysics is multi-messenger: not only photons used as probes for the investigation of the Universe, but also cosmic-rays, neutrinos and gravitational waves. Joining the efforts and skills of different experiments and collaborations, additional tools for data analysis can be enabled. The multi-messenger approach is important in particular for neutrino...
Prof.
Vasily Prosin
(Skobeltsyn Institute of Nuclear Physics of Lomonosov Moscow State University)
10/1/14, 5:20 PM
oral
EAS Cherenkov light array Tunka-133 with ~3 km2 geometric area operated since 2009. Five winter seasons of data acquisition (~107 triggers) and high quality of information permitted us to reconstruct primary energy spectrum and mass composition in the energy range 6•1015 to 1018 eV. This energy range is the most important for understanding of transition from Galactic to extragalactic CR. The...
Carla Distefano
(LNS)
10/1/14, 5:40 PM
oral
In March 2013, the Nemo Phase-2 tower was successfully deployed at 100 km off-shore Capo Passero (Italy) at 3500 m depth. The tower operated continuously until August 2014. We present the results of the muon analysis from the data collected in 411.1 days of live time.
The zenith angular distribution of atmospheric muons was measured and results compared with Monte Carlo simulations. The...
Prof.
Daniele Fargion
(INFN and Dipt Fisica Sapienza)
10/1/14, 5:50 PM
UHECR (Ultra High Energy Cosmic Rays) are reaching a large sample of events both in the South (by AUGER) and recently also in the North terrestrial emisphere (by TA, Terrestrial Array Telescope). The latter events are showing an apparent wide Hot Spot clustering toward an unexpected area of the sky. Some tentative correlation with Ursa Major Cluster has been offered: however the remarkable...
Stefano Gabici
(APC)
10/2/14, 9:00 AM
oral
I will review some of the recent results of galactic gamma ray astronomy, both in the GeV and TeV domain. I will focus on those results which shed new light on some aspects of the process of acceleration of cosmic rays in the Galaxy.
Prof.
Miguel Mostafa
(Penn State Univ.)
10/2/14, 9:35 AM
oral
The TeV energy band is a very exciting window into the origin of high energy cosmic radiation, particle acceleration, and the annihilation of dark matter particles. Above a few hundred GeV, ground-based experiments of very large effective areas open a new domain to study extragalactic sources at intermediate redshifts, galaxy clusters, gamma ray bursts, AGN and their flaring states, extended...
Rubén López-Coto
(nstitut de Física d'Altes Energies - IFAE)
10/2/14, 10:10 AM
oral
MAGIC is one of the main detectors for performing ground-based observations of VHE gamma-ray sources. It consists of two 17m diameter Imaging Atmospheric Cherenkov telescopes. The telescopes are located at 2200 m a.s.l. at the Roque de los Muchachos, on the Canary island of la Palma, Spain. They are designed to observe gamma rays with energies above ~50 GeV. The system recently underwent a...
John Carr
(CPPM/IN2P3/CNRS)
10/2/14, 11:15 AM
oral
The Cherenkov Telescope Array (CTA) will provide a new ground based gamma-ray observatory with sensitivity ten-times better than existing gamma-ray experiments. CTA will also have a much wider energy range and improved angular resolution.
The presentation will describe the telescope array which is reaching the final stages of design and prototyping. A vital first decision for CTA will be the...
Giuseppe Di Sciascio
(ROMA2)
10/2/14, 11:50 AM
Dr
Manuel Bou-Cabo
(UPV)
10/2/14, 2:00 PM
poster
In this talk, the technique of using bubble nucleation in superheated liquid detectors for dark matter searches is addressed. This technique can be very competitive, especially for the case of spin dependent interaction. Different detectors, such as bubble chambers, liquid droplets and geyser chambers will be presented. Finally, the activities and results of PICO bubble chambers will be shown....
Cecilia Pizzolotto
(INFN and ASDC)
10/2/14, 2:00 PM
A precise measurement by AMS02 of the electron spectrum up to 700 GeV and of the positron spectrum and positron fraction in primary cosmic rays up 500 GeV will be presented. In this contribution, we will review the analysis performed to determine the individual fluxes that for the first time have been extended to such high energies. The combined measurement of the cosmic-ray electron and...
Dr
Jose Luis Bazo Alba
(ASDC & INFN)
10/2/14, 2:20 PM
The AMS-02 spectrometer, on the ISS since 2011, performs highly accurate measurements of cosmic rays up to the TeV region. We review the analysis of the cosmic (e+ + e-) flux in the energy range between 0.5 GeV and 1 TeV, based on 41 billion events. The high statistics and detector energy resolution allow for a study of the spectral shape of unprecedented quality, thus improving our...
Dr
Valentina Giordano
(CT)
10/2/14, 2:20 PM
poster
Several kinds of photomultipliers are widely used in astroparticle physics detectors to measure Cherenkov light in media like water or ice. In neutrino telescopes the key element of the detector is the optical module, which consists of one or more photodetectors inside a transparent pressure-resistant glass sphere. The glass sphere serves as mechanical protection while ensuring good light...
Dr
Yuji Hotta
(Hamamatsu Photonics K.K:)
10/2/14, 2:40 PM
oral
Hamamatsu are developing various types of PMTs for many applications. We will show the latest developmental status in our PMTs.
Dr
Ruizhi Yang
(Max-planck-institute for nuclear physics)
10/2/14, 2:40 PM
oral
We report the results of our study of the energy spectra and absolute fluxes of cosmic rays (CRs) in the Local Galaxy based on a five-year γ-ray observation with the Fermi Large Area Telescope (LAT) of eight nearby giant molecular clouds (GMCs) belonging to the Gould Belt. The γ-ray signals obtained with high statistical significance allow the determination of γ-ray spectra above 300 MeV with...
Ms
Viviana Gammaldi
(Universidad Complutense Madrid (UCM))
10/2/14, 3:00 PM
oral
I will show that the collection of data of the years 2004, 2005 and 2006 of the gamma-ray flux observed by HESS from the J1745-290 Galactic Center source is well fitted as the secondary gamma-ray photons generated from Dark Matter annihilating into Standard Model particles in combination with a simple power law background. The model independent fits are performed for all the possible channels...
Dr
Stefano Vercellone
(INAF/IASF Palermo)
10/2/14, 3:00 PM
poster
The Cherenkov Telescope Array (CTA) is a large collaborative effort aimed at the design and operation of an observatory dedicated to the very high-energy gamma-ray astrophysics in the energy range 30 GeV - 100 TeV, which will yield about an order of magnitude improvement in the sensitivity with respect to the current major arrays (H.E.S.S., MAGIC, and VERITAS). Within this framework, the...
Dr
Giovanni Piano
(INAF-IAPS Roma)
10/2/14, 3:20 PM
oral
The AGILE space mission, currently in its eight year of operations in orbit, obtained a large number of crucial and unexpected findings. We review the main results for both Galactic and extragalactic sources, and outline some of the most surprising discoveries: gamma-ray flares from the Crab Nebula, detection of HE emission from Cygnus X-1 and Cygnus X-3 in coincidence with special spectral...
Dr
Aurelio Siro Tonachini
(University of Torino)
10/2/14, 3:20 PM
In cosmic rays experiments based on the measurement of UV light, the knowledge and constant monitoring of the atmospheric transmission through aerosols is fundamental, due to the large time variation. The corresponding correction to EAS energy can range from a few percent to more than 40%, depending on aerosol attenuation conditions, distance of the shower and energy. The Atmospheric Research...
Fulvio Ricci
(ROMA1)
10/3/14, 10:00 AM
Christoph Weniger
10/3/14, 11:45 AM
Pierluigi Belli
(ROMA2)
10/3/14, 12:20 PM
oral
An overview of the latest results of Dark Matter direct detection will be discussed, with particular care to the DAMA/LIBRA-phase1 results and the evidence with high confidence level obtained by exploiting the model independent Dark Matter annual modulation signature for the presence of Dark Matter particles in the galactic halo. Results from other experiments using different procedures,...
Mr
Marco CIRELLI
(CERN & IPhT CEA/Saclay)
10/3/14, 12:55 PM
oral
I will give a status assessment of DM indirect searches. I will discuss 4 recent claims of detection, the constraints to which they are subject and the theory directions that they have spurred.
Paolo Piattelli
(LNS)
10/3/14, 4:15 PM
Prof.
Dafne Guetta
(OAR INAF)
