A Tale of Tails. Dark Matter Interpretations of the Fermi GeV Excess in Light of Background Model Systematics

Calore, Francesca; Cholis, Ilias; McCabe, Christopher; Weniger, Christoph

doi:10.1103/PhysRevD.91.063003

Title: A Tale of Tails. Dark Matter Interpretations of the Fermi GeV Excess in Light of Background Model Systematics

Journal Article · Tue Mar 10 00:00:00 EDT 2015 · Physical Review. D, Particles, Fields, Gravitation and Cosmology

DOI:https://doi.org/10.1103/PhysRevD.91.063003· OSTI ID:1234866

Calore, Francesca ^[1]; Cholis, Ilias ^[2]; McCabe, Christopher ^[1]; Weniger, Christoph ^[1]

Univ. of Amsterdam (Netherlands)
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)

Several groups have identified an extended excess of gamma rays over the modeled foreground and background emissions towards the Galactic center (GC) based on observations with the Fermi Large Area Telescope. The excess emission is compatible in morphology and spectrum with a telltale sign from dark matter (DM) annihilation. Here, we present a critical reassessment of DM interpretations of the GC signal in light of the foreground and background uncertainties that some of us recently outlaid in Calore et al. (2014). We also find that a much larger number of DM models fits the gamma-ray data than previously noted. In particular: (1) In the case of DM annihilation into b¯b, we find that even large DM masses up to m_χ≃74 GeV are allowed at p-value >0.05. (2) Surprisingly, annihilation into nonrelativistic hh gives a good fit to the data. (3) The inverse Compton emission from μ⁺μ^- with m_χ~60–70 GeV can also account for the excess at higher latitudes, |b|>2°, both in its spectrum and morphology. We also present novel constraints on a large number of mixed annihilation channels, including cascade annihilation involving hidden sector mediators. Finally, we show that the current limits from dwarf spheroidal observations are not in tension with a DM interpretation when uncertainties on the DM halo profile are accounted for.

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Research Organization:: Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)

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

Grant/Contract Number:: AC02-07CH11359

OSTI ID:: 1234866

Alternate ID(s):: OSTI ID: 1180159

Report Number(s):: FERMILAB-PUB-14-477-A; arXiv eprint number arXiv:1411.4647

Journal Information:: Physical Review. D, Particles, Fields, Gravitation and Cosmology, Vol. 91, Issue 06; ISSN 1550-7998

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 237 works

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Dark matter constraints from dwarf galaxies: a data-driven analysis Calore, Francesca; Serpico, Pasquale Dario; Zaldivar, Bryan Journal of Cosmology and Astroparticle Physics, Vol. 2018, Issue 10 https://doi.org/10.1088/1475-7516/2018/10/029	journal	October 2018
Millisecond Pulsars and the Gamma-Ray Excess in Andromeda Fragione, Giacomo; Antonini, Fabio; Gnedin, Oleg Y. The Astrophysical Journal, Vol. 871, Issue 1 https://doi.org/10.3847/2041-8213/aafc62	journal	January 2019
The inert doublet model in the light of Fermi-LAT gamma-ray data: a global fit analysis Eiteneuer, Benedikt; Goudelis, Andreas; Heisig, Jan The European Physical Journal C, Vol. 77, Issue 9 https://doi.org/10.1140/epjc/s10052-017-5166-1	journal	September 2017
A review of indirect searches for particle dark matter Gaskins, Jennifer M. Contemporary Physics, Vol. 57, Issue 4 https://doi.org/10.1080/00107514.2016.1175160	journal	June 2016
Combined collider constraints on neutralinos and charginos Athron, Peter; Balázs, Csaba; Buckley, Andy The European Physical Journal C, Vol. 79, Issue 5 https://doi.org/10.1140/epjc/s10052-019-6837-x	journal	May 2019
Planck 2015 results : XXIII. The thermal Sunyaev-Zeldovich effect-cosmic infrared background correlation Ade, P. A. R.; Aghanim, N.; Arnaud, M. Astronomy & Astrophysics, Vol. 594 https://doi.org/10.1051/0004-6361/201527418	journal	September 2016
Singlet scalar dark matter in U(1)B-L models without right-handed neutrinos Singirala, Shivaramakrishna; Mohanta, Rukmani; Patra, Sudhanwa The European Physical Journal Plus, Vol. 133, Issue 11 https://doi.org/10.1140/epjp/i2018-12270-0	journal	November 2018
Multi-component dark matter: the vector and fermion case Ahmed, Aqeel; Duch, Mateusz; Grzadkowski, Bohdan The European Physical Journal C, Vol. 78, Issue 11 https://doi.org/10.1140/epjc/s10052-018-6371-2	journal	November 2018
A global analysis of dark matter signals from 27 dwarf spheroidal galaxies using 11 years of Fermi-LAT observations Hoof, Sebastian; Geringer-Sameth, Alex; Trotta, Roberto Journal of Cosmology and Astroparticle Physics, Vol. 2020, Issue 02 https://doi.org/10.1088/1475-7516/2020/02/012	journal	February 2020
DarkBit: a GAMBIT module for computing dark matter observables and likelihoods Bringmann, Torsten; Conrad, Jan; Cornell, Jonathan M. The European Physical Journal C, Vol. 77, Issue 12 https://doi.org/10.1140/epjc/s10052-017-5155-4	journal	December 2017
WIMP dark matter candidates and searches—current status and future prospects Roszkowski, Leszek; Sessolo, Enrico Maria; Trojanowski, Sebastian Reports on Progress in Physics, Vol. 81, Issue 6 https://doi.org/10.1088/1361-6633/aab913	journal	May 2018
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Disrupted globular clusters and the gamma-ray excess in the Galactic Centre Fragione, Giacomo; Antonini, Fabio; Gnedin, Oleg Y. Monthly Notices of the Royal Astronomical Society, Vol. 475, Issue 4 https://doi.org/10.1093/mnras/sty183	journal	January 2018
Ruling out dark matter interpretation of the galactic GeV excess by gamma-ray data of galaxy clusters Chan, Man Ho; Leung, Chung Hei Scientific Reports, Vol. 7, Issue 1 https://doi.org/10.1038/s41598-017-14950-4	journal	November 2017
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Asymptotically safe dark matter Sannino, Francesco; Shoemaker, Ian M. Physical Review D, Vol. 92, Issue 4 https://doi.org/10.1103/physrevd.92.043518	journal	August 2015
The effects of QCD equation of state on the relic density of WIMP dark matter Drees, Manuel; Hajkarim, Fazlollah; Schmitz, Ernany Rossi Journal of Cosmology and Astroparticle Physics, Vol. 2015, Issue 06 https://doi.org/10.1088/1475-7516/2015/06/025	journal	June 2015
Impact of Cosmic-Ray Physics on Dark Matter Indirect Searches Gaggero, Daniele; Valli, Mauro Advances in High Energy Physics, Vol. 2018 https://doi.org/10.1155/2018/3010514	journal	December 2018
Heavy dark matter particle annihilation in dwarf spheroidal galaxies: Radio signals at the SKA telescope Kar, Arpan; Mitra, Sourav; Mukhopadhyaya, Biswarup Physical Review D, Vol. 101, Issue 2 https://doi.org/10.1103/physrevd.101.023015	journal	January 2020
The galactic isotropic γ-ray background and implications for dark matter Campbell, Sheldon S.; Kwa, Anna; Kaplinghat, Manoj Monthly Notices of the Royal Astronomical Society, Vol. 479, Issue 3 https://doi.org/10.1093/mnras/sty1483	journal	June 2018
CONFRONTING GALACTIC AND EXTRAGALACTIC γ -RAYS OBSERVED BY FERMI -LAT WITH ANNIHILATING DARK MATTER IN AN INERT HIGGS DOUBLET MODEL Modak, Kamakshya Prasad; Majumdar, Debasish The Astrophysical Journal Supplement Series, Vol. 219, Issue 2 https://doi.org/10.1088/0067-0049/219/2/37	journal	August 2015
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Population Syntheses of Millisecond Pulsars from the Galactic Disk and Bulge Gonthier, Peter L.; Harding, Alice K.; Ferrara, Elizabeth C. The Astrophysical Journal, Vol. 863, Issue 2 https://doi.org/10.3847/1538-4357/aad08d	journal	August 2018
The Galactic Center GeV excess from a series of leptonic cosmic-ray outbursts Cholis, Ilias; Evoli, Carmelo; Calore, Francesca Journal of Cosmology and Astroparticle Physics, Vol. 2015, Issue 12 https://doi.org/10.1088/1475-7516/2015/12/005	journal	December 2015
Scalar split WIMPs in future direct detection experiments Ghorbani, Karim; Ghorbani, Hossein Physical Review D, Vol. 93, Issue 5 https://doi.org/10.1103/physrevd.93.055012	journal	March 2016
Is the gamma-ray source 3FGL J2212.5+0703 a dark matter subhalo? Bertoni, Bridget; Hooper, Dan; Linden, Tim Journal of Cosmology and Astroparticle Physics, Vol. 2016, Issue 05 https://doi.org/10.1088/1475-7516/2016/05/049	journal	May 2016
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Fermi-LAT Observations of Gamma-Ray Emission Towards the Outer Halo of M31 Karwin, Chris; Murgia, Simona; Campbell, Sheldon Proceedings of 36th International Cosmic Ray Conference — PoS(ICRC2019) https://doi.org/10.22323/1.358.0570	conference	July 2019
NMSSM explanations of the Galactic center gamma ray excess and promising LHC searches Guo, Jun; Li, Jinmian; Li, Tianjun arXiv https://doi.org/10.48550/arxiv.1409.7864	text	January 2014
Asymptotically Safe Dark Matter Sannino, Francesco; Shoemaker, Ian M. arXiv https://doi.org/10.48550/arxiv.1412.8034	text	January 2014
Planck 2015 results. XIII. Cosmological parameters Collaboration, Planck; Ade, P. A. R.; Aghanim, N. arXiv https://doi.org/10.48550/arxiv.1502.01589	text	January 2015
The Effects of QCD Equation of State on the Relic Density of WIMP Dark Matter Drees, Manuel; Hajkarim, Fazlollah; Schmitz, Ernany Rossi arXiv https://doi.org/10.48550/arxiv.1503.03513	text	January 2015
The Galactic Center GeV Excess from a Series of Leptonic Cosmic-Ray Outbursts Cholis, Ilias; Evoli, Carmelo; Calore, Francesca arXiv https://doi.org/10.48550/arxiv.1506.05119	text	January 2015
Probing a light CP-odd scalar in di-top-associated production at the LHC Casolino, Mirkoantonio; Farooque, Trisha; Juste, Aurelio arXiv https://doi.org/10.48550/arxiv.1507.07004	preprint	January 2015
Is The Gamma-Ray Source 3FGL J2212.5+0703 A Dark Matter Subhalo? Bertoni, Bridget; Hooper, Dan; Linden, Tim arXiv https://doi.org/10.48550/arxiv.1602.07303	text	January 2016
A review of indirect searches for particle dark matter Gaskins, Jennifer M. arXiv https://doi.org/10.48550/arxiv.1604.00014	text	January 2016
Cosmological constraints on dark matter annihilation and decay: Cross-correlation analysis of the extragalactic $γ$-ray background and cosmic shear Shirasaki, Masato; Macias, Oscar; Horiuchi, Shunsaku arXiv https://doi.org/10.48550/arxiv.1607.02187	text	January 2016
Boxes, Boosts, and Energy Duality: Understanding the Galactic-Center Gamma-Ray Excess through Dynamical Dark Matter Boddy, Kimberly K.; Dienes, Keith R.; Kim, Doojin arXiv https://doi.org/10.48550/arxiv.1609.09104	text	January 2016
Exploring Cosmic Origins with CORE: Cosmological Parameters Di Valentino, Eleonora; Brinckmann, Thejs; Gerbino, Martina arXiv https://doi.org/10.48550/arxiv.1612.00021	text	January 2016
Interpretation of the gamma-ray excess and AMS-02 antiprotons: Velocity dependent dark matter annihilations Jia, Lian-Bao arXiv https://doi.org/10.48550/arxiv.1703.06938	text	January 2017
The Dawn of FIMP Dark Matter: A Review of Models and Constraints Bernal, Nicolás; Heikinheimo, Matti; Tenkanen, Tommi arXiv https://doi.org/10.48550/arxiv.1706.07442	text	January 2017
WIMP dark matter candidates and searches - current status and future prospects Roszkowski, Leszek; Sessolo, Enrico Maria; Trojanowski, Sebastian arXiv https://doi.org/10.48550/arxiv.1707.06277	text	January 2017
Disrupted Globular Clusters and the Gamma-Ray Excess in the Galactic Centre Fragione, Giacomo; Antonini, Fabio; Gnedin, Oleg Y. arXiv https://doi.org/10.48550/arxiv.1709.03534	text	January 2017
Multi-Component Dark Matter: the vector and fermion case Ahmed, Aqeel; Duch, Mateusz; Grzadkowski, Bohdan arXiv https://doi.org/10.48550/arxiv.1710.01853	text	January 2017
Ruling out dark matter interpretation of the galactic GeV excess by gamma-ray data of galaxy clusters Chan, Man Ho; Leung, Chung Hei arXiv https://doi.org/10.48550/arxiv.1710.08123	text	January 2017
Population syntheses of millisecond pulsars from the Galactic Disk and Bulge Gonthier, Peter L.; Harding, Alice K.; Ferrara, Elizabeth C. arXiv https://doi.org/10.48550/arxiv.1806.11215	text	January 2018
Probing the Fermi-LAT GeV excess with gravitational waves Calore, Francesca; Regimbau, Tania; Serpico, Pasquale Dario arXiv https://doi.org/10.48550/arxiv.1812.05094	text	January 2018
A Global Analysis of Dark Matter Signals from 27 Dwarf Spheroidal Galaxies using 11 Years of Fermi-LAT Observations Hoof, Sebastian; Geringer-Sameth, Alex; Trotta, Roberto arXiv https://doi.org/10.48550/arxiv.1812.06986	text	January 2018
Ruling out $\sim 100-300$ GeV thermal relic annihilating dark matter by radio observation of the Andromeda galaxy Chan, Man Ho; Cui, Lang; Liu, Jun arXiv https://doi.org/10.48550/arxiv.1901.04638	text	January 2019
Scrutinizing the evidence for dark matter in cosmic-ray antiprotons Cuoco, Alessandro; Heisig, Jan; Klamt, Lukas arXiv https://doi.org/10.48550/arxiv.1903.01472	text	January 2019
A Robust Excess in the Cosmic-Ray Antiproton Spectrum: Implications for Annihilating Dark Matter Cholis, Ilias; Linden, Tim; Hooper, Dan arXiv https://doi.org/10.48550/arxiv.1903.02549	text	January 2019

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