Fermi LAT Search for Photon Lines from 30 to 200 GeV

Journal Article · Wed May 26 00:00:00 EDT 2010 · Phys.Rev.Lett.104:091302,2010

DOI:https://doi.org/10.1103/PhysRevLett.104.091302· OSTI ID:979950

Abdo, A A; Ackermann, M; Ajello, M; Atwood, W B; Baldini, L; Ballet, J; Barbiellini, G; Bastieri, D; Bechtol, K; Bellazzini, R; Berenji, B; Bloom, E D; Bonamente, E; Borgland, A W; Bouvier, A; Bregeon, J; Brez, A; Brigida, M; Bruel, P; Burnett, T H ; Buson, S

Dark matter (DM) particle annihilation or decay can produce monochromatic {gamma}-rays readily distinguishable from astrophysical sources. {gamma}-ray line limits from 30 GeV to 200 GeV obtained from 11 months of Fermi Large Area Space Telescope data from 20-300 GeV are presented using a selection based on requirements for a {gamma}-ray line analysis, and integrated over most of the sky. We obtain {gamma}-ray line flux upper limits in the range 0.6-4.5 x 10{sup -9} cm{sup -2}s{sup -1}, and give corresponding DM annihilation cross-section and decay lifetime limits. Theoretical implications are briefly discussed.

• Research Organization: SLAC National Accelerator Lab., Menlo Park, CA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC02-76SF00515
• OSTI ID: 979950
• Report Number(s): SLAC-PUB-13948; ISSN 1079-7114; arXiv:1001.4836; TRN: US1003417
• Journal Information: Phys.Rev.Lett.104:091302,2010, Vol. 104, Issue 9; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANNIHILATION
DECAY
LIFETIME
NONLUMINOUS MATTER
PHOTONS
SKY
TELESCOPES
Astrophysics
ASTRO