TeV Particle Astrophysics 2013

Session

High-energy cosmic rays and their propagation

26 Aug 2013, 16:30

Beckman Center of the National Academies of Sciences and Engineering

Conveners

High-energy cosmic rays and their propagation

• Igor Moskalenko (Stanford)
• Mirko Boezio (INFN Trieste)
• Rene Ong (UCLA)

High-energy cosmic rays and their propagation

• Igor Moskalenko (Stanford)
• Rene Ong (UCLA)
• Mirko Boezio (INFN Trieste)

High-energy cosmic rays and their propagation

• Rene Ong (UCLA)
• Igor Moskalenko (Stanford)
• Mirko Boezio (INFN Trieste)

47. Cosmic Rays in the Heliosphere

Jack Jokipii

26/08/2013, 16:30

The heliosphere is populated by a number of different species of energetic particles – galactic cosmic rays, anomalous cosmic rays, solar energetic particles and energetic particles accelerated in the interplanetary medium. The opportunity to study the transport and acceleration of these particles in great detail and, in many cases in situ, from spacecraft enables detailed comparison of...

48. Heliospheric modulation of CRs

Pavol Bobik

26/08/2013, 16:54

HelMod is 2D Monte Carlo propagation model of galactic cosmic rays through the Heliosphere. The model includes the effects due to the variation of solar activity during the propagation of cosmic rays from the boundary of the heliopause down to Earth’s position. The simulated spectra were found in agreement with those obtained with experimental observations carried out by BESS, AMS and PAMELA...

49. Constraints on Galactic Cosmic-Ray Origins from Elemental and Isotopic Composition Measurements

Walter Binns

26/08/2013, 17:18

The most recent measurements by the Cosmic Ray Isotope Spectrometer (CRIS) aboard the Advanced Composition Explorer (ACE) satellite of ultra-heavy cosmic ray isotopic and elemental abundances will be presented. A range of isotope and element ratios, most importantly 22Ne/20Ne and 31Ga/32Ge show that the composition is consistent with source material that is a mix of ~80% ISM (with Solar System...

50. Measuring Antimatter over Antarctica: Results from the BESS-Polar Program

Akira Yamamoto, John Mitchell

26/08/2013, 17:42

The US-Japan BESS-Polar Collaboration (Balloon-borne Experiment with a Superconducting Spectrometer – Polar) has finalized its core program of elementary particle measurements. The measured antiproton spectrum probes possible exotic sources, such as dark-matter candidates. The search for antihelium or heavier antinuclei examines the possibility that antimatter domains remain in the...

51. The PAMELA Experiment: Seven Years of Cosmic Rays Investigation

Mirko Boezio

26/08/2013, 18:06

The seven years of data taking in space of the experiment PAMELA are showing interesting features in cosmic rays, namely in the antiparticle components that can be interpreted in terms of dark matter annihilation or pulsar contribution. Moreover, precise particle spectra measurements protons, helium nuclei, electrons, made by PAMELA are challenging our basic vision of the mechanisms of...

52. Propagation of cosmic rays

Vladimir Ptuskin

27/08/2013, 14:00

The theoretical aspects of cosmic ray transport in the Galaxy are discussed. Discussion includes the interpretation of data on cosmic ray spectrum, composition and anisotropy. The model of cosmic ray origin in supernova remnants, the nature of “knee” in cosmic ray spectrum at energy 3 PeV, and the collective effects of cosmic rays in the Galaxy are considered.

53. Brief review of ATIC results on nuclei and electrons

John Wefel

27/08/2013, 14:24

The Advanced Thin Ionization Calorimeter (ATIC) experiment had a test flight and two science flights from McMurdo, Antarctica, in addition to a beam calibration at CERN. The experiment, designed to measure the spectra of H, He and heavy nuclei, was also capable of separating electrons from protons. The development and history of ATIC is briefly reviewed as a context for presenting the measured...

54. Cosmic Rays with VERITAS

David Staszak

27/08/2013, 14:48

VERITAS is an array of four imaging atmospheric Cherenkov telescopes in southern Arizona and is one of the world's most sensitive detectors of very high energy (VHE: >100 GeV) gamma rays and cosmic rays. While the primary focus of VERITAS is to detect and understand gamma-ray sources, techniques can be developed to distinguish and measure individual cosmic-ray species in the data. In this talk...

55. Cosmic Ray Studies with MAGIC

Sara Rebecca Gozzini

27/08/2013, 15:12

Galactic sources of cosmic rays might be gamma ray emitters, if interactions of cosmic ray protons and nuclei yielding high energy photons occur in the source ambient. In the very high energy regime, photons can be detected with the Cherenkov Imaging technique through the light produced by their extensive air showers in the atmosphere. MAGIC is a system of two such imaging air Cherenkov...

56. PeV Cosmic Rays measured by IceCube/IceTop

Serap Tilav

27/08/2013, 15:36

We report on the high-resolution measurements of cosmic ray spectrum and mass composition from the knee region up to 1 EeV based on one year of data collected with IceCube/IceTop. Complementary to the PeV neutrinos, IceCube measures extensive air showers of PeV cosmic rays on the surface with the IceTop array and the penetrating high energy muon bundles with the matrix of detectors in deep...

58. Cosmic Ray Electron Synchrotron Telescope (CREST) status report

Stephane Coutu

28/08/2013, 14:00

The CREST instrument aims to determine whether cosmic electrons are seen at Earth beyond a few TeV, from sources in the local Galactic neighborhood (a kpc or so). Only a few candidate astrophysical sites exist that meet the acceleration and propagation requirements, such as the Vela, Monogem, and Cygnus Loop remnants, and thus multi-TeV electrons are a useful marker of the nearby high energy...

59. The Calorimetric Electron Telescope (CALET) for High Energy Astroparticle Physics on the International Space Station

Shoji Torii

28/08/2013, 14:24

The CALET space experiment, currently under development by Japan in collaboration with Italy and the United States, will measure the flux of Cosmic Ray electrons (and positrons) to 20 TeV, gamma rays to 10 TeV and nuclei with Z=1 to 40 up to 1,000 TeV during a five year mission. These measurements are essential to investigate possible nearby astrophysical sources of high energy electrons,...

60. The DAMPE Space Mission

Xin Wu

28/08/2013, 14:48

DAMPE (DArk Matter Particle Explore) is a satellite mission of the Chinese Academy of Science dedicated to high energy particle detections in space. The main scientific objective of DAMPE is to detect electrons and photons in the range of 5 GeV-10 TeV with unprecedented energy resolution in order to identify possible Dark Matter signatures. It will also measure the flux of nuclei up to 100 TeV...

61. Cosmic ray physics with the GAMMA-400 experiment

Paolo Cumani

28/08/2013, 15:12

GAMMA-400 is a future high-energy gamma-ray telescope, primarily devoted to the study of gamma-rays in the 50 MeV - 10 TeV energy range. Thanks to a deep segmented calorimeter of novel concept and a state-of-the-art imaging Silicon Tracker, the proposed instrument has an optimal proton rejection factor, angular and energy resolution. The GAMMA-400 experiment is optimized to address a broad...

62. Results From the pGAPS Test Flight

Isaac Mognet

28/08/2013, 15:36

The General Antiparticle Spectrometer (GAPS) experiment is a proposed dark matter indirect-detection mission intended to fly on an Antarctic scientific balloon later this decade. GAPS will search for low energy (<300 MeV/n) cosmic ray antideuterons. A number of theoretical WIMP dark matter candidates are predicted to produce enhancements in the flux of antimatter particles in Galactic cosmic...