Volume 476 - 42nd International Conference on High Energy Physics (ICHEP2024) - Astroparticle Physics and Cosmology
Determination of Anisotropy of Elementary Particles
M. Molero Gonzalez*, J. Casaus, I. Rodríguez-García and M. Angel Velasco
*: corresponding author
Full text: pdf
Pre-published on: December 23, 2024
Published on: April 29, 2025
Abstract
A measurement of the cosmic ray anisotropy on the arrival directions of positrons, electrons and protons has been performed in galactic coordinates by the Alpha Magnetic Spectrometer onboard the International Space Station. The analysis is based on the first 11 years of data taking. Results are consistent with isotropy and upper limits on the dipole amplitude (𝛿) at the 95% C.I. have been established. In particular, for energies above 16 GeV limits of 𝛿 < 1.44% and 𝛿 < 0.39% are obtained for positrons and electrons, respectively. For protons, a limit of 𝛿 < 0.30% is obtained
or rigidities above 200 GV.
DOI: https://doi.org/10.22323/1.476.0674
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