The DOI matches its Crossref record; 101 of the 101 references it cites were found in a registry or an index.
A tale of tails: Dark matter interpretations of the Fermi GeV excess in light of background model systematics
Open accessAbstract
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. This 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 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 $\overline{b}b$, we find that even large DM masses up to ${m}_{\ensuremath{\chi}}\ensuremath{\simeq}74\text{ }\text{ }\mathrm{GeV}$ 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 ${\ensuremath{\mu}}^{+}{\ensuremath{\mu}}^{\ensuremath{-}}$ with ${m}_{\ensuremath{\chi}}\ensuremath{\sim}60--70\text{ }\text{ }\mathrm{GeV}$ can also account for the excess at higher latitudes, $|b|>{2}^{\ifmmode^\circ\else\textdegree\fi{}}$, 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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Planck 2015 results. XIII. Cosmological parameters
Planck Collaboration, Ade, P. A. R., Aghanim, N., Arnaud, M., Ashdown, M., Aumont, J., Baccigalupi, C., Banday, A. J., Barreiro, R. B., Bartlett, J. G., et al. (2015) · arXiv · doi:10.48550/arxiv.1502.01589 · Cited by 10,720
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Planck Collaboration, Ade, P. A. R., Aghanim, N., Arnaud, M., Ashdown, M., Aumont, J., Baccigalupi, C., Banday, A. J., Barreiro, R. B., Bartlett, J. G., et al. (2016) · Astronomy & Astrophysics · doi:10.1051/0004-6361/201525830 · Cited by 10,583
Dark Matter as a Topological Vacuum Condensate
Planck Collaboration, Aghanim, N., Akrami, Y., Ashdown, M., Aumont, J., Baccigalupi, C., Ballardini, M., Banday, A. J., Barreiro, R. B., Bartolo, N., et al. (2018) · arXiv (Cornell University) · doi:10.48550/arxiv.1807.06209 · Cited by 3,403
FERMI-LAT OBSERVATIONS OF HIGH-ENERGY γ-RAY EMISSION TOWARD THE GALACTIC CENTER
Ajello, M., Albert, A., Atwood, W. B., Barbiellini, G., Bastieri, D., Bechtol, K., Bellazzini, R., Bissaldi, E., Blandford, R. D., Bloom, E. D., et al. (2016) · The Astrophysical Journal · doi:10.3847/0004-637x/819/1/44 · Cited by 401
Novel Dark Matter Constraints from Antiprotons in Light of AMS-02
Cuoco, A., Krämer, M., & Korsmeier, M. (2017) · Physical Review Letters · doi:10.1103/physrevlett.118.191102 · Cited by 256
Metadata
- Authors
- Calore, F., Cholis, I., McCabe, C., & Weniger, C.
- Venue
- Physical Review D
- Publisher
- American Physical Society (APS)
- Published
- 2015-03-10
- Volume
- 91
- Issue
- 6
- ISSN
- 0556-2821 (ISSN-L)
- 1550-7998
- 1550-2368
- OpenAlex
- W2120455760
- Cited by
- 301
- References
- 101
- FWCI
- 32.34
- Type
- journal article
- Language
- en
- Open access
- bronze
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