Limits on dark matter annihilation signals from the Fermi LAT 4-year measurement of the isotropic gamma-ray background

Ackermann, M.

doi:10.1088/1475-7516/2015/09/008

Title: Limits on dark matter annihilation signals from the Fermi LAT 4-year measurement of the isotropic gamma-ray background

Journal Article · Wed Sep 02 00:00:00 EDT 2015 · Journal of Cosmology and Astroparticle Physics

DOI:https://doi.org/10.1088/1475-7516/2015/09/008· OSTI ID:1221230

Ackermann, M. ^[1]

Deutsches Elektronen-Synchrotron (DESY), Zeuthen (Germany). et al.

Here, we search for evidence of dark matter (DM) annihilation in the isotropic gamma-ray background (IGRB) measured with 50 months of Fermi Large Area Telescope (LAT) observations. An improved theoretical description of the cosmological DM annihilation signal, based on two complementary techniques and assuming generic weakly interacting massive particle (WIMP) properties, renders more precise predictions compared to previous work. Moreover, we estimate the cosmologically-induced gamma-ray intensity to have an uncertainty of a factor ~ 20 in canonical setups. We consistently include both the Galactic and extragalactic signals under the same theoretical framework, and study the impact of the former on the IGRB spectrum derivation. We find no evidence for a DM signal and we set limits on the DM-induced isotropic gamma-ray signal. Our limits are competitive for DM particle masses up to tens of TeV and, indeed, are the strongest limits derived from Fermi LAT data at TeV energies. This is possible thanks to the new Fermi LAT IGRB measurement, which now extends up to an energy of 820 GeV. We also quantify uncertainties in detail and show the potential this type of search offers for testing the WIMP paradigm with a complementary and truly cosmological probe of DM particle signals.

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Research Organization:: Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States); SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)

Sponsoring Organization:: USDOE Office of Science (SC), High Energy Physics (HEP)

Contributing Organization:: Fermi-LAT; Fermi LAT Collaboration

Grant/Contract Number:: AC02-07CH11359; AC02-76SF00515

OSTI ID:: 1221230

Alternate ID(s):: OSTI ID: 1354915

Report Number(s):: FERMILAB-PUB-15-052-A; arXiv eprint number arXiv:1501.05464

Journal Information:: Journal of Cosmology and Astroparticle Physics, Vol. 2015, Issue 09; ISSN 1475-7516

Publisher:: Institute of Physics (IOP)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 77 works

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Measurement of the extragalactic background light imprint on the spectra of the brightest blazars observed with H.E.S.S Collaboration, H. E. S. S.; Abramowski, A.; Acero, F. arXiv https://doi.org/10.48550/arxiv.1212.3409	text	January 2012
Constraints on the annihilation cross section of dark matter particles from anisotropies in the diffuse gamma-ray background measured with Fermi-LAT Ando, Shin'ichiro; Komatsu, Eiichiro arXiv https://doi.org/10.48550/arxiv.1301.5901	text	January 2013
Dark Matter implications of Fermi-LAT measurement of anisotropies in the diffuse gamma-ray background Gomez-Vargas, G. A.; Cuoco, A.; Linden, T. arXiv https://doi.org/10.48550/arxiv.1303.2154	text	January 2013
Planck 2013 results. XVI. Cosmological parameters Collaboration, Planck; Ade, P. A. R.; Aghanim, N. arXiv https://doi.org/10.48550/arxiv.1303.5076	text	January 2013
The dependence of dark matter profiles on the stellar to halo mass ratio: a prediction for cusps vs cores Di Cintio, Arianna; Brook, Chris B.; Maccio, Andrea V. arXiv https://doi.org/10.48550/arxiv.1306.0898	text	January 2013
The Cosmic Evolution of Fermi BL Lacertae Objects Ajello, M.; Romani, R. W.; Gasparrini, D. arXiv https://doi.org/10.48550/arxiv.1310.0006	text	January 2013
Dark Matter Constraints from Observations of 25 Milky Way Satellite Galaxies with the Fermi Large Area Telescope Collaboration, Lat; Ackermann, M.; Albert, A. arXiv https://doi.org/10.48550/arxiv.1310.0828	text	January 2013
Resolving Small-Scale Dark Matter Structures Using Multi-Source Indirect Detection Ng, Kenny C. Y.; Laha, Ranjan; Campbell, Sheldon arXiv https://doi.org/10.48550/arxiv.1310.1915	text	January 2013
Dissecting the Gamma-Ray Background in Search of Dark Matter Cholis, Ilias; Hooper, Dan; McDermott, Samuel D. arXiv https://doi.org/10.48550/arxiv.1312.0608	text	January 2013
Star-forming galaxies as the origin of diffuse high-energy backgrounds: Gamma-ray and neutrino connections, and implications for starburst history Tamborra, Irene; Ando, Shin'ichiro; Murase, Kohta arXiv https://doi.org/10.48550/arxiv.1404.1189	text	January 2014
A Comprehensive Search for Dark Matter Annihilation in Dwarf Galaxies Geringer-Sameth, Alex; Koushiappas, Savvas M.; Walker, Matthew G. arXiv https://doi.org/10.48550/arxiv.1410.2242	text	January 2014
Diffuse Galactic gamma-ray emission with H.E.S.S Collaboration, H. E. S. S.; Abramowski, A.; Aharonian, F. arXiv https://doi.org/10.48550/arxiv.1411.7568	text	January 2014
The Origin of the Extragalactic Gamma-Ray Background and Implications for Dark-Matter Annihilation Ajello, M.; Gasparrini, D.; Sanchez-Conde, M. arXiv https://doi.org/10.48550/arxiv.1501.05301	text	January 2015
Dark Matter Scaling Relations Salucci, Paolo; Burkert, Andreas arXiv https://doi.org/10.48550/arxiv.astro-ph/0004397	text	January 2000
The peculiar motions of early-type galaxies in two distant regions - VII. Peculiar velocities and bulk motions Colless, Matthew; Saglia, R. P.; Burstein, D. arXiv https://doi.org/10.48550/arxiv.astro-ph/0008418	text	January 2000
First Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Determination of Cosmological Parameters Spergel, D. N.; Verde, L.; Peiris, H. V. arXiv https://doi.org/10.48550/arxiv.astro-ph/0302209	text	January 2003
HEALPix -- a Framework for High Resolution Discretization, and Fast Analysis of Data Distributed on the Sphere Gorski, K. M.; Hivon, E.; Banday, A. J. arXiv https://doi.org/10.48550/arxiv.astro-ph/0409513	text	January 2004
Earth-mass dark-matter haloes as the first structures in the early Universe Diemand, Juerg; Moore, Ben; Stadel, Joachim arXiv https://doi.org/10.48550/arxiv.astro-ph/0501589	text	January 2005
The first WIMPy halos Green, Anne M.; Hofmann, Stefan; Schwarz, Dominik J. arXiv https://doi.org/10.48550/arxiv.astro-ph/0503387	text	January 2005
Kiloparsec-Scale Jets in FR I Radio Galaxies and the Gamma-Ray Background Stawarz, L.; Kneiske, T. M.; Kataoka, J. arXiv https://doi.org/10.48550/arxiv.astro-ph/0507316	text	January 2005
What mass are the smallest protohalos? Profumo, Stefano; Sigurdson, Kris; Kamionkowski, Marc arXiv https://doi.org/10.48550/arxiv.astro-ph/0603373	text	January 2006
Baryonic Pinching of Galactic Dark Matter Halos Gustafsson, Michael; Fairbairn, Malcolm; Sommer-Larsen, Jesper arXiv https://doi.org/10.48550/arxiv.astro-ph/0608634	text	January 2006
Cosmic-ray propagation and interactions in the Galaxy Strong, Andrew W.; Moskalenko, Igor V.; Ptuskin, Vladimir S. arXiv https://doi.org/10.48550/arxiv.astro-ph/0701517	text	January 2007
The Structure of Dark Matter Haloes in Dwarf Galaxies Burkert, A. arXiv https://doi.org/10.48550/arxiv.astro-ph/9504041	text	January 1995
The Structure of Cold Dark Matter Halos Navarro, Julio F.; Frenk, Carlos S.; White, Simon D. M. arXiv https://doi.org/10.48550/arxiv.astro-ph/9508025	text	January 1995
Statistical Properties of X-ray Clusters: Analytic and Numerical Comparisons Bryan, G. L.; Norman, M. L. arXiv https://doi.org/10.48550/arxiv.astro-ph/9710107	text	January 1997
Dark matter annihilation at the galactic center Gondolo, Paolo; Silk, Joseph arXiv https://doi.org/10.48550/arxiv.astro-ph/9906391	text	January 1999
Density profiles of CDM microhalos and their implications for annihilation boost factors Anderhalden, Donnino; Diemand, Juerg IOP Publishing https://doi.org/10.5167/uzh-90651	text	January 2013
Prospects of detecting gamma-ray emission from galaxy clusters: Cosmic rays and dark matter annihilations Pinzke, Anders; Pfrommer, Christoph; Bergström, Lars Physical Review D, Vol. 84, Issue 12 https://doi.org/10.1103/physrevd.84.123509	journal	December 2011
Anisotropies in the gamma-ray sky from millisecond pulsars Siegal-Gaskins, Jennifer M.; Reesman, Rebecca; Pavlidou, Vasiliki arXiv https://doi.org/10.48550/arxiv.1011.5501	text	January 2010

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Limits to dark matter annihilation cross-section from a combined analysis of MAGIC and Fermi-LAT observations of dwarf satellite galaxies Ahnen, M. L.; Ansoldi, S.; Antonelli, L. A. arXiv https://doi.org/10.48550/arxiv.1601.06590	text	January 2016
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Top-philic Scalar Dark Matter with a Vector-like Fermionic Top Partner Baek, Seungwon; Ko, Pyungwon; Wu, Peiwen arXiv https://doi.org/10.48550/arxiv.1606.00072	text	January 2016
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