Open AccessConstraints on dark matter annihilation from several IACTs’ cosmic ray electron spectrums
Author(s) -
Chaimongkol Duangchan,
Maneenate Wechakama
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1719/1/012012
Subject(s) - physics , annihilation , electron , dark matter , cherenkov radiation , positron , cosmic ray , compton scattering , photon , nuclear physics , astrophysics , atomic physics , particle physics , optics , detector
In dark matter self-annihilation events, highly energetic electron and positron pairs can be created in several different annihilation channels and propagate through space while losing their energies. The electrons can lose their energies by these mechanisms; the interaction with low-energy photons via inverse Compton scattering, synchrotron radiation due to interstellar magnetic fields, and ionization with neutral hydrogen atoms, resulting in high energy cosmic electron fluxes at the Earth’s location. Adopted electron spectrums from H. E. S. S., MAGIC, and VERITAS which are Imaging Atmospheric Cherenkov Telescopes (IACTs), we have found the constraints on dark matter annihilation in a range of TeV energies. The results show the stringent constraint on electron channels, and there are no significant differences in constraints between IACTs’ data sets.