Cosmic-ray transport from AMS-02 boron to carbon ratio data: Benchmark models and interpretation

Cosmic Ray Astrophysics with AMS-02

The Alpha Magnetic Spectrometer (AMS) is a cosmic ray (CR) experiment that will operate on the International Space Station for three years, measuring the particle spectra in the rigidity range from 0.2 GV to 2 TV. The AMS-02 detector will provide measurements with unprecedented statistics of the hadronic and leptonic cosmic rays, allowing for a better study of the Earth magnetosphere through th...

Supplemental Material to ‘New limits on dark matter annihilation from AMS cosmic ray positron data’

Lars Bergström, Torsten Bringmann, Ilias Cholis, Dan Hooper, 4 and Christoph Weniger The Oskar Klein Centre for Cosmoparticle Physics, Department of Physics, Stockholm University, AlbaNova, SE-106 91 Stockholm, Sweden II. Institute for Theoretical Physics, University of Hamburg, Luruper Chausse 149, DE-22761 Hamburg, Germany Center for Particle Astrophysics, Fermi National Accelerator Laborator...

New limits on dark matter annihilation from AMS cosmic ray positron data

Cosmic-ray Positron Fraction Measurement from 1 to 30 Gev with Ams-01

A measurement of the cosmic ray positron fraction e + /(e + + e −) in the energy range of 1–30 GeV is presented. The measurement is based on data taken by the AMS-01 experiment during its 10 day Space Shuttle flight in June 1998. A proton background suppression on the order of 10 6 is reached by identifying converted bremsstrahlung photons emitted from positrons.

Search for Antimatter with the AMS Cosmic Ray Detector

Antimatter search results of the Alpha Magnetic Spectrometer (AMS) detector are presented. About 10 triggers were collected in the 1998 precursor flight onboard space shuttle Discovery. This ten day mission exposed the detector on a 51.7◦ orbit at an altitude around 350km. Identification of charged cosmic rays is achieved by multiple energy loss and time-of-flight measurements. Bending inside t...