skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Charge asymmetric cosmic rays as a probe of flavor violating asymmetric dark matter

Abstract

The recently introduced cosmic sum rules combine the data from PAMELA and Fermi-LAT cosmic ray experiments in a way that permits to neatly investigate whether the experimentally observed lepton excesses violate charge symmetry. One can in a simple way determine universal properties of the unknown component of the cosmic rays. Here we attribute a potential charge asymmetry to the dark sector. In particular we provide models of asymmetric dark matter able to produce charge asymmetric cosmic rays. We consider spin zero, spin one and spin one-half decaying dark matter candidates. We show that lepton flavor violation and asymmetric dark matter are both required to have a charge asymmetry in the cosmic ray lepton excesses. Therefore, an experimental evidence of charge asymmetry in the cosmic ray lepton excesses implies that dark matter is asymmetric.

Authors:
 [1];  [2]
  1. Dipartimento di Fisica, Università di Ferrara and INFN Sez. di Ferrara, Via Saragat 1, I-44100 Ferrara (Italy)
  2. CP3-Origins and DIAS, University of Southern Denmark, Campusvej 55, DK-5230 Odense M (Denmark)
Publication Date:
OSTI Identifier:
22277721
Resource Type:
Journal Article
Journal Name:
Journal of Cosmology and Astroparticle Physics
Additional Journal Information:
Journal Volume: 2011; Journal Issue: 09; Other Information: Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1475-7516
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; ASYMMETRY; COSMIC RADIATION; COSMOLOGICAL MODELS; COSMOLOGY; FLAVOR MODEL; LEPTONS; NONLUMINOUS MATTER; POTENTIALS; SPIN; SUM RULES; SYMMETRY

Citation Formats

Masina, Isabella, and Sannino, Francesco. Charge asymmetric cosmic rays as a probe of flavor violating asymmetric dark matter. United States: N. p., 2011. Web. doi:10.1088/1475-7516/2011/09/021.
Masina, Isabella, & Sannino, Francesco. Charge asymmetric cosmic rays as a probe of flavor violating asymmetric dark matter. United States. https://doi.org/10.1088/1475-7516/2011/09/021
Masina, Isabella, and Sannino, Francesco. Thu . "Charge asymmetric cosmic rays as a probe of flavor violating asymmetric dark matter". United States. https://doi.org/10.1088/1475-7516/2011/09/021.
@article{osti_22277721,
title = {Charge asymmetric cosmic rays as a probe of flavor violating asymmetric dark matter},
author = {Masina, Isabella and Sannino, Francesco},
abstractNote = {The recently introduced cosmic sum rules combine the data from PAMELA and Fermi-LAT cosmic ray experiments in a way that permits to neatly investigate whether the experimentally observed lepton excesses violate charge symmetry. One can in a simple way determine universal properties of the unknown component of the cosmic rays. Here we attribute a potential charge asymmetry to the dark sector. In particular we provide models of asymmetric dark matter able to produce charge asymmetric cosmic rays. We consider spin zero, spin one and spin one-half decaying dark matter candidates. We show that lepton flavor violation and asymmetric dark matter are both required to have a charge asymmetry in the cosmic ray lepton excesses. Therefore, an experimental evidence of charge asymmetry in the cosmic ray lepton excesses implies that dark matter is asymmetric.},
doi = {10.1088/1475-7516/2011/09/021},
url = {https://www.osti.gov/biblio/22277721}, journal = {Journal of Cosmology and Astroparticle Physics},
issn = {1475-7516},
number = 09,
volume = 2011,
place = {United States},
year = {2011},
month = {9}
}