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Fermi LAT Search for Dark Matter in Gamma-Ray Lines and the Inclusive Photon SpectrumDark matter particle annihilation or decay can produce monochromatic gamma-ray lines and contribute to the diffuse gamma-ray background. Flux upper limits are presented 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. 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.
Document ID
20130012050
Acquisition Source
Goddard Space Flight Center
Document Type
Preprint (Draft being sent to journal)
External Source(s)
doi:10.1103/PhysRevD.86.022002
Authors
Ackermann, M. (Deutsches Elektronen-Synchrotron Zeuthen, Germany)
Ajello, M. (Kavli Inst. for Particle Astrophysics and Cosmology Stanford, CA, United States)
Albert, A. (Ohio Univ. Columbus, OH, United States)
Baldini, L. (Istituto Nazionale di Fisica Nucleare Pisa, Italy)
Barbiellini, G. (Istituto Nazionale di Fisica Nucleare Trieste, Italy)
Bechtol, K. (Kavli Inst. for Particle Astrophysics and Cosmology Stanford, CA, United States)
Bellazzini, R. (Istituto Nazionale di Fisica Nucleare Pisa, Italy)
Berenji, B. (Kavli Inst. for Particle Astrophysics and Cosmology Stanford, CA, United States)
Blandford, R. D. (Kavli Inst. for Particle Astrophysics and Cosmology Stanford, CA, United States)
Bloom, E. D. (Kavli Inst. for Particle Astrophysics and Cosmology Stanford, CA, United States)
Bonamente, E. (Istituto Nazionale di Fisica Nucleare Perugia, Italy)
Borgland, A. W. (Kavli Inst. for Particle Astrophysics and Cosmology Stanford, CA, United States)
Brigida, M. (Istituto Nazionale di Fisica Nucleare Bari, Italy)
Buehler, R. (Kavli Inst. for Particle Astrophysics and Cosmology Stanford, CA, United States)
Buson, S. (Istituto Nazionale di Fisica Nucleare Padova, Italy)
Caliandro, G. A. (Institut de Ciencies de l'Espai Barcelona, Spain)
Cameron, R. A. (Kavli Inst. for Particle Astrophysics and Cosmology Stanford, CA, United States)
Caraveo, P. A. (Istituto di Astrofisica Spaziale e Fisica Cosmica (INAF-IASF) Rome, Italy)
Casandjian, J. M. (Paris Univ. Gif-sur-Yvette, France)
Cecchi, C. (Istituto Nazionale di Fisica Nucleare Perugia, Italy)
Charles, E. (Kavli Inst. for Particle Astrophysics and Cosmology Stanford, CA, United States)
Chekhtman, A. (Artep, Inc. Ellicott City, MD, United States)
Chiang, J. (Kavli Inst. for Particle Astrophysics and Cosmology Stanford, CA, United States)
Ciprini, S. (Italian Space Agency Rome, Italy)
Moiseev, Alexander A. (Maryland Univ. College Park, MD, United States)
Date Acquired
August 27, 2013
Publication Date
January 1, 2012
Subject Category
Astronomy
Report/Patent Number
GSFC-E-DAA-TN6618
Funding Number(s)
CONTRACT_GRANT: NNG06EO90A
Distribution Limits
Public
Copyright
Public Use Permitted.

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