Fermi LAT Search for Photon Lines from 30 to 200 GeV and Dark Matter Implications
Creators: name: The Fermi LAT Collaboration
name: Abdo, A. A.
name: Ackermann, M.
name: Ajello, M.
name: Atwood, W. B.
name: Baldini, L.
name: Ballet, J.
name: Barbiellini, G.
name: Bastieri, D.
name: Bechtol, K.
name: Bellazzini, R.
name: Berenji, B.
name: Bloom, E. D.
name: Bonamente, E.
name: Borgland, A. W.
name: Bouvier, A.
name: Bregeon, J.
name: Brez, A.
name: Brigida, M.
name: Bruel, P.
name: Burnett, T. H.
name: Buson, S.
name: Caliandro, G. A.
name: Cameron, R. A.
name: Caraveo, P. A.
name: Carrigan, S.
name: Casandjian, J. M.
name: Cecchi, C.
name: Elik, O. C.
name: Chekhtman, A.
name: Chiang, J.
name: Ciprini, S.
name: Claus, R.
name: Cohen-Tanugi, J.
name: Conrad, J.
name: Dermer, C. D.
name: de Angelis, A.
name: de Palma, F.
name: Digel, S. W.
name: Silva, E. do Couto e
name: Drell, P. S.
name: Drlica-Wagner, A.
name: Dubois, R.
name: Dumora, D.
name: Edmonds, Y.
name: Essig, R.
name: Farnier, C.
name: Favuzzi, C.
name: Fegan, S. J.
name: Focke, W. B.
name: Fortin, P.
name: Frailis, M.
name: Fukazawa, Y.
name: Funk, S.
name: Fusco, P.
name: Gargano, F.
name: Gasparrini, D.
name: Gehrels, N.
name: Germani, S.
name: Giglietto, N.
name: Giordano, F.
name: Glanzman, T.
name: Godfrey, G.
name: Grenier, I. A.
name: Grove, J. E.
name: Guillemot, L.
name: Guiriec, S.
name: Gustafsson, M.
name: Hadasch, D.
name: Harding, A. K.
name: Horan, D.
name: Hughes, R. E.
name: Jackson, M. S.
name: ohannesson, G. J .
name: Johnson, A. S.
name: Johnson, R. P.
name: Johnson, W. N.
name: Kamae, T.
name: Katagiri, H.
name: Kataoka, J.
name: Kawai, N.
name: Kerr, M.
name: dlseder, J. Kno .
name: Kuss, M.
name: Lande, J.
name: Latronico, L.
name: Garde, M. Llena
name: Longo, F.
name: Loparco, F.
name: Lott, B.
name: Lovellette, M. N.
name: Lubrano, P.
name: Makeev, A.
name: Mazziotta, M. N.
name: McEnery, J. E.
name: Meurer, C.
name: Michelson, P. F.
name: Mitthumsiri, W.
name: Mizuno, T.
name: Moiseev, A. A.
name: Monte, C.
name: Monzani, M. E.
name: Morselli, A.
name: Moskalenko, I. V.
name: Murgia, S.
name: Nolan, P. L.
name: Norris, J. P.
name: Nuss, E.
name: Ohsugi, T.
name: Omodei, N.
name: Orlando, E.
name: Ormes, J. F.
name: Ozaki, M.
name: Paneque, D.
name: Panetta, J. H.
name: Parent, D.
name: Pelassa, V.
name: Pepe, M.
name: Pesce-Rollins, M.
name: Piron, F.
name: Rainó, S.
name: Rando, R.
name: Razzano, M.
name: Reimer, A.
name: Reimer, O.
name: Reposeur, T.
name: Ripken, J.
name: Ritz, S.
name: Rodriguez, A. Y.
name: Roth, M.
name: Sadrozinski, H. F. -W.
name: Sander, A.
name: Parkinson, P. M. Saz
name: Scargle, J. D.
name: Schalk, T. L.
name: Sellerholm, A.
name: Sgró, C.
name: Siskind, E. J.
name: Smith, D. A.
name: Smith, P. D.
name: Spandre, G.
name: Spinelli, P.
name: Starck, J. -L.
name: Strickman, M. S.
name: Suson, D. J.
name: Tajima, H.
name: Takahashi, H.
name: Tanaka, T.
name: Thayer, J. B.
name: Thayer, J. G.
name: Tibaldo, L.
name: Torres, D. F.
name: Uchiyama, Y.
name: Usher, T. L.
name: Vasileiou, V.
name: Vilchez, N.
name: Vitale, V.
name: Waite, A. P.
name: Wang, P.
name: Winer, B. L.
name: Wood, K. S.
name: Ylinen, T.
name: Ziegler, M.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences
subject: FOS: Physical sciences

description: Dark matter (DM) particle annihilation or decay can produce monochromatic $γ$-rays readily distinguishable from astrophysical sources. $γ$-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 $γ$-ray line analysis, and integrated over most of the sky. We obtain $γ$-ray line flux upper limits in the range $0.6-4.5\times 10^{-9}\mathrm{cm}^{-2}\mathrm{s}^{-1}$, and give corresponding DM annihilation cross-section and decay lifetime limits. Theoretical implications are briefly discussed.
description: 6 pages, 1 figure. Accepted for publication by The Physical Review Letters