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Title: Fermi LAT search for dark matter in gamma-ray lines and the inclusive photon spectrum

Abstract

Dark matter particle annihilation or decay can produce monochromatic gamma-ray lines and contribute to the diffuse gamma-ray background. Furthermore, we present the flux upper limits for gamma-ray spectral lines from 7 to 200 GeV and for the diffuse gamma-ray background from 4.8 GeV to 264 GeV obtained from two years of Fermi Large Area Telescope data integrated over most of the sky. Here, we give cross-section upper limits and decay lifetime lower limits for dark matter models that produce gamma-ray lines or contribute to the diffuse spectrum, including models proposed as explanations of the PAMELA and Fermi cosmic-ray data.

Authors:
 [1]
  1. Deutsches Elektronen-Synchrotron (DESY), Zeuthen (Germany). et al.
Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org.:
USDOE
Contributing Org.:
Fermi LAT Collaboration
OSTI Identifier:
1356723
Grant/Contract Number:  
AC02-76SF00515
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review. D, Particles, Fields, Gravitation and Cosmology
Additional Journal Information:
Journal Volume: 86; Journal Issue: 2; Journal ID: ISSN 1550-7998
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Ackermann, M. Fermi LAT search for dark matter in gamma-ray lines and the inclusive photon spectrum. United States: N. p., 2012. Web. doi:10.1103/PhysRevD.86.022002.
Ackermann, M. Fermi LAT search for dark matter in gamma-ray lines and the inclusive photon spectrum. United States. https://doi.org/10.1103/PhysRevD.86.022002
Ackermann, M. Thu . "Fermi LAT search for dark matter in gamma-ray lines and the inclusive photon spectrum". United States. https://doi.org/10.1103/PhysRevD.86.022002. https://www.osti.gov/servlets/purl/1356723.
@article{osti_1356723,
title = {Fermi LAT search for dark matter in gamma-ray lines and the inclusive photon spectrum},
author = {Ackermann, M.},
abstractNote = {Dark matter particle annihilation or decay can produce monochromatic gamma-ray lines and contribute to the diffuse gamma-ray background. Furthermore, we present the flux upper limits for gamma-ray spectral lines from 7 to 200 GeV and for the diffuse gamma-ray background from 4.8 GeV to 264 GeV obtained from two years of Fermi Large Area Telescope data integrated over most of the sky. Here, we give cross-section upper limits and decay lifetime lower limits for dark matter models that produce gamma-ray lines or contribute to the diffuse spectrum, including models proposed as explanations of the PAMELA and Fermi cosmic-ray data.},
doi = {10.1103/PhysRevD.86.022002},
journal = {Physical Review. D, Particles, Fields, Gravitation and Cosmology},
number = 2,
volume = 86,
place = {United States},
year = {Thu Jul 05 00:00:00 EDT 2012},
month = {Thu Jul 05 00:00:00 EDT 2012}
}

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