TeV Particle Astrophysics 2013

Session

Ultra-high-energy messengers

27 Aug 2013, 14:00

Beckman Center of the National Academies of Sciences and Engineering

Conveners

Ultra-high-energy messengers

• Markus Ahlers (University of Wisconsin-Madison)
• Ignacio Taboada (Georgia Tech)

Ultra-high-energy messengers

• Markus Ahlers (University of Wisconsin-Madison)
• Ignacio Taboada (Georgia Tech)

29. Extreme Energy Particles with JEM-EUSO

Angela Olinto

27/08/2013, 14:00

The origin of the highest energy cosmic rays is still a great mystery. Recent observations have confirmed the extragalactic origin of cosmic rays above tens of EeV, whose sources should be among the most powerful extragalactic objects. The spectrum shows the effect of propagation from cosmological distances or possibly the maximum energy reach of cosmic accelerators. The lack of...

97. Measuring Potential Noise Backgrounds for the Telescope Array Radar (TARA) near Long Ridge, UT

Jordan Hanson

27/08/2013, 14:30

The main transmitter and receiver stations for the Telescope Array Radar bi-static cosmic ray detection system are now complete. To perform background-free coincidence studies, low-cost , sustainable power remote stations are being designed and built. A site survey was conducted in March 2013 with the goal of finding a remote site in the desert near the main TARA receiver at Long Ridge, UT. ...

30. The development of remote receiver stations for TARA

Samridha Kunwar

27/08/2013, 15:00

The development remote receiver stations for TARA The Telescope Array RAdar (TARA) detector is based on a remote sensing technique known as bi-static radar that aims to achieve remote coverage over large portions of the Earth's surface in search of cosmic ray induced radio echoes. In conjunction with North America's largest cosmic ray observatory (The Telescope Array) in radio quiet western...

31. Anisotropy studies with the Pierre Auger Observatory

Miguel Mostafa

27/08/2013, 15:30

Anisotropy studies with the Pierre Auger Observatory The Pierre Auger Observatory in Argentina measures air showers initiated by cosmic rays at EeV energy scales and above. An important goal of the collaboration is to study the distribution of arrival directions of the primary particles and quantify potential anisotropies. Recent results from anisotropy searches using data collected with the...

32. Mass composition studies with Pierre Auger Observatory

Alessio Porcelli

27/08/2013, 16:30

Mass composition studies with Pierre Auger Observatory The study of the mass composition of cosmic rays is important to understand their origin. At ultra-high energies, the primary mass can only be estimated from the shower observables. These include the depth of maximum of the longitudinal shower development, Xmax, and different observables measured with the surface detector array such as the...

33. Measurements of the muon content of air showers and search for ultra-high energy neutrinos and photons at the Pierre Auger Observatory

Ines Valino

27/08/2013, 17:00

The Pierre Auger Observatory offers a unique window to study cosmic rays and particle physics at energies above 3 EeV (corresponding to a center-of-mass energy of 75 TeV in proton-proton collisions) inaccessible to accelerator experiments. We discuss the different methods of estimating the number of muons in showers recorded at the Surface Detector array, which is an observable sensitive to...

34. Probing cosmic-ray origin with the cosmogenic neutrino searches with IceCube

Aya Ishihara

27/08/2013, 17:30

IceCube is a cubic kilo-meter scale, deep-ice Cherenkov neutrino detector at the South Pole. IceCube's high energy neutrino searches cover an energy region of the TeV and lower energies, and also the much higher energy region up to EeV and higher. In the EeV energy region, cosmogenic neutrinos channelled from ultra-high energy cosmic-ray emissions which play leading roles in the flow of...

98. Neutrino transport in accretion disks

Ye-Fei Yuan (Univ. of Sci. and Tech. of China)

27/08/2013, 18:00

Gamma-ray bursts (GRBs) are one of the most violent explosions in our universe. Even though the fireball-shock model succeeds in explaining the multi-wavelength emission from the afterglow of GRBs, we have not known what is the central engine of GRBs. The generally accepted model for the central engine of GRBs is believed to be related to the hyperaccretion of a stellar-mass black hole at...