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Article: Constraints on cosmological dark matter annihilation from the Fermi-LAT isotropic diffuse gamma-ray measurement

TitleConstraints on cosmological dark matter annihilation from the Fermi-LAT isotropic diffuse gamma-ray measurement
Authors
Abdo, AAAckermann, MAjello, MBaldini, LBallet, JBarbiellini, GBastieri, DBechtol, KBellazzini, RBerenji, BBlandford, RDNuss, EOhsugi, TOmodei, NOrlando, EOrmes, JFPaneque, DPanetta, JHParent, DPelassa, VPepe, MBloom, EDPesceRollins, MPiron, FRainò, SRando, RReimer, AReimer, OReposeur, TRodriguez, AYRoth, MSadrozinski, HFWBonamente, ESander, ASaz Parkinson, PMScargle, JDSellerholm, ASgrò, CSiskind, EJSmith, PDSpandre, GSpinelli, PStarck, JLBorgland, AWStrickman, MSSuson, DJTakahashi, HTanaka, TThayer, JBThayer, JGTorres, DFUchiyama, YUsher, TLVasileiou, VBouvier, AVilchez, NVitale, VWaite, APWang, PWiner, BLWood, KSYlinen, TZaharijas, GZiegler, MBregeon, JBrez, ABrigida, MBruel, PBurnett, THBuson, SCaliandro, GACameron, RACaraveo, PACarrigan, SCasandjian, JMCecchi, CÇelik, ÖChekhtman, ACheung, CCChiang, JCiprini, SClaus, RCohenTanugi, JConrad, JCutini, SDermer, CDDe Angelis, ADe Palma, FDigel, SWDo Couto E Silva, EDrell, PSDubois, RDumora, DEdmonds, YFarnier, CFavuzzi, CFegan, SJFocke, WBFortin, PFrailis, MFukazawa, YFusco, PGargano, FGasparrini, DGehrels, NGermani, SGiglietto, NGiordano, FGlanzman, TGodfrey, GGrove, JEGuillemot, LGuiriec, SGustafsson, MHadasch, DHarding, AKHoran, DHughes, REJohnson, ASJohnson, WNKamae, TKatagiri, HKataoka, JKawai, NKerr, MKnödlseder, JKuss, MLande, JLatronico, LLlena Garde, MLongo, FLoparco, FLott, BLovellette, MNLubrano, PMakeev, AMazziotta, MNMcenery, JEMeurer, CMichelson, PFMitthumsiri, WMizuno, TMonte, CMonzani, MEMorselli, AMoskalenko, IVMurgia, SNolan, PLNorris, JP
Issue Date2010
PublisherInstitute of Physics Publishing. The Journal's web site is located at http://www.iop.org/EJ/journal/JCAP
Citation
Journal Of Cosmology And Astroparticle Physics, 2010, v. 2010 n. 4 How to Cite?
AbstractThe first published Fermi large area telescope (Fermi-LAT) measurement of the isotropic diffuse gamma-ray emission is in good agreement with a single power law, and is not showing any signature of a dominant contribution from dark matter sources in the energy range from 20 to 100 GeV. We use the absolute size and spectral shape of this measured flux to derive cross section limits on three types of generic dark matter candidates: annihilating into quarks, charged leptons and monochromatic photons. Predicted gamma-ray fluxes from annihilating dark matter are strongly affected by the underlying distribution of dark matter, and by using different available results of matter structure formation we assess these uncertainties. We also quantify how the dark matter constraints depend on the assumed conventional backgrounds and on the Universe's transparency to high-energy gamma-rays. In reasonable background and dark matter structure scenarios (but not in all scenarios we consider) it is possible to exclude models proposed to explain the excess of electrons and positrons measured by the Fermi-LAT and PAMELA experiments. Derived limits also start to probe cross sections expected from thermally produced relics (e.g. in minimal supersymmetry models) annihilating predominantly into quarks. For the monochromatic gamma-ray signature, the current measurement constrains only dark matter scenarios with very strong signals. © 2010 IOP Publishing Ltd and SISSA.
Persistent Identifierhttp://hdl.handle.net/10722/188393
ISSN
2015 Impact Factor: 5.634
2015 SCImago Journal Rankings: 0.652
ISI Accession Number ID
References

 

DC FieldValueLanguage
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dc.contributor.authorAckermann, Men_US
dc.contributor.authorAjello, Men_US
dc.contributor.authorBaldini, Len_US
dc.contributor.authorBallet, Jen_US
dc.contributor.authorBarbiellini, Gen_US
dc.contributor.authorBastieri, Den_US
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dc.contributor.authorBloom, EDen_US
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dc.contributor.authorFukazawa, Yen_US
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dc.contributor.authorKerr, Men_US
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dc.contributor.authorLlena Garde, Men_US
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dc.contributor.authorLoparco, Fen_US
dc.contributor.authorLott, Ben_US
dc.contributor.authorLovellette, MNen_US
dc.contributor.authorLubrano, Pen_US
dc.contributor.authorMakeev, Aen_US
dc.contributor.authorMazziotta, MNen_US
dc.contributor.authorMcenery, JEen_US
dc.contributor.authorMeurer, Cen_US
dc.contributor.authorMichelson, PFen_US
dc.contributor.authorMitthumsiri, Wen_US
dc.contributor.authorMizuno, Ten_US
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dc.contributor.authorMorselli, Aen_US
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dc.date.accessioned2013-09-03T04:05:06Z-
dc.date.available2013-09-03T04:05:06Z-
dc.date.issued2010en_US
dc.identifier.citationJournal Of Cosmology And Astroparticle Physics, 2010, v. 2010 n. 4en_US
dc.identifier.issn1475-7516en_US
dc.identifier.urihttp://hdl.handle.net/10722/188393-
dc.description.abstractThe first published Fermi large area telescope (Fermi-LAT) measurement of the isotropic diffuse gamma-ray emission is in good agreement with a single power law, and is not showing any signature of a dominant contribution from dark matter sources in the energy range from 20 to 100 GeV. We use the absolute size and spectral shape of this measured flux to derive cross section limits on three types of generic dark matter candidates: annihilating into quarks, charged leptons and monochromatic photons. Predicted gamma-ray fluxes from annihilating dark matter are strongly affected by the underlying distribution of dark matter, and by using different available results of matter structure formation we assess these uncertainties. We also quantify how the dark matter constraints depend on the assumed conventional backgrounds and on the Universe's transparency to high-energy gamma-rays. In reasonable background and dark matter structure scenarios (but not in all scenarios we consider) it is possible to exclude models proposed to explain the excess of electrons and positrons measured by the Fermi-LAT and PAMELA experiments. Derived limits also start to probe cross sections expected from thermally produced relics (e.g. in minimal supersymmetry models) annihilating predominantly into quarks. For the monochromatic gamma-ray signature, the current measurement constrains only dark matter scenarios with very strong signals. © 2010 IOP Publishing Ltd and SISSA.en_US
dc.languageengen_US
dc.publisherInstitute of Physics Publishing. The Journal's web site is located at http://www.iop.org/EJ/journal/JCAPen_US
dc.relation.ispartofJournal of Cosmology and Astroparticle Physicsen_US
dc.titleConstraints on cosmological dark matter annihilation from the Fermi-LAT isotropic diffuse gamma-ray measurementen_US
dc.typeArticleen_US
dc.identifier.emailSaz Parkinson, PM: pablosp@hku.hken_US
dc.identifier.authoritySaz Parkinson, PM=rp01803en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1088/1475-7516/2010/04/014en_US
dc.identifier.scopuseid_2-s2.0-77951540299en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-77951540299&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume2010en_US
dc.identifier.issue4en_US
dc.identifier.isiWOS:000277684600019-
dc.publisher.placeUnited Kingdomen_US
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