Secluded WIMPs, dark QED with massive photons, and the galactic center gamma-ray excess

Fortes, E. C. F. S.; Pleitez, V.; Stecker, F. W.

doi:10.1016/j.astropartphys.2015.10.010

Cited by 20 publications

(24 citation statements)

References 65 publications

(47 reference statements)

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“…Almost every day a paper with a new DM model can be found in arXiv. An obviously incomplete list of recent eprint papers includes [319,320,321,322,323,324,325,326,327,328,205,329,206].…”

Section: Exotic Dm Searchesmentioning

confidence: 99%

Is it possible to discover a dark matter particle with an accelerator?

Bednyakov

2015

Preprint

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The paper contains description of the main properties of the galactic dark matter (DM) particles, available approaches for detection of DM, main features of direct DM detection, ways to estimate prospects for the DM detection, the first collider search for a DM candidate within an Effective Field Theory, complete review of ATLAS results of the DM candidate search with LHC RUN I, and less complete review of "exotic" dark particle searches with other accelerators and not only.From these considerations it follows that one is unable to prove, especially modelindependently, a discovery of a DM particle with an accelerator, or collider. One can only obtain evidence on existence of a weakly interacting neutral particle, which could be, or could not be the DM candidate.The current LHC DM search program uses only the missing transverse energy signature. Non-observation of any excess above Standard Model expectations forces the LHC experiments to enter into the same fighting for the best exclusion curve, in which (almost) all direct and indirect DM search experiments permanently take place. But this fighting has very little (almost nothing) to do with a real possibility of discovering a DM particle. The true DM particles possess an exclusive galactic signature -annual modulation of a signal, which is accessible today only for direct DM detection experiments. There is no way for it with a collider, or accelerator.Therefore to prove the DM nature of a collider-discovered candidate one must find the candidate in a direct DM experiment and demonstrate the galactic signature for the candidate. Furthermore, being observed, the DM particle must be implemented into a modern theoretical framework. The best candidate is the supersymmetry, which looks today inevitable for coherent interpretation of all available DM data.

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“…Almost every day a paper with a new DM model can be found in arXiv. An obviously incomplete list of recent eprint papers includes [319,320,321,322,323,324,325,326,327,328,205,329,206].…”

Section: Exotic Dm Searchesmentioning

confidence: 99%

Is it possible to discover a dark matter particle with an accelerator?

Bednyakov

2015

Preprint

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“…So, in the context of indirect searches, instead of a 2 → 2 annihilation, we have a 2 → 4 one, as can be seen in the right panel of 1. We emphasize that there are many secluded DM models in the literature, which includes dark photons [8,20,21], heavy vector bosons [22,23], and also scalar fields [24,25]. After this brief description of the models, we will follow to the computation of the gamma-ray flux.…”

Section: Pos(icrc2021)577mentioning

confidence: 99%

Indirect Searches for Secluded Dark Matter

Siqueira¹,

Viana²,

Queiroz³

2021

Proceedings of 37th International Cosmic Ray Conference — PoS(ICRC2021)

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Dark matter remains one of the most important open problems in particle physics and cosmology. Weakly interacting massive particles (WIMPs) appear as an appealing solution, providing the right relic density with a cross-section at the electroweak scale, however, no WIMP signals were observed until now. Secluded models are good alternatives to the standard ones. In this case, instead of a direct annihilation to the standard model (SM) particles, the dark matter annihilates into mediators which subsequently decay into SM particles. In this way, we can avoid the stringent limits from direct searches, and, at the same time, secluded models can be probed by indirect detection experiments. Motivated by the appearance of secluded dark matter in several model building endeavors, in this talk, we will present the sensitivity of several gamma-ray instruments (current and prospects), including Fermi-LAT, H.E.S.S., CTA, and SWGO, to secluded dark matter annihilations in the inner galactic halo, and in the dwarf spheroidal galaxies, covering a wide range of possible DM masses, from tens of GeV to hundreds of TeV.

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“…1. We emphasize that there are many secluded DM models in the literature, which includes dark photons [8,20,21], heavy vector bosons [22,23], and also scalar fields [24,25]. After this brief description of the models, we will follow to the computation of the gamma-ray flux.…”

Section: Secluded Modelsmentioning

confidence: 99%

Indirect Searches for Secluded Dark Matter

Siqueira,

Fortes,

Viana

et al. 2021

Preprint

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Dark matter ris one of the most important open problems in particle physics and cosmology. Weakly interacting massive particles (WIMPs) appear as an appealing solution, providing the right relic density with a cross-section at the electroweak scale, however, no WIMP signals were observed until now. Secluded models are good alternatives to the standard ones. In this case, instead of a direct annihilation to the standard model (SM) particles, the dark matter annihilates into mediators which subsequently decay into SM particles. In this way, secluded models may avoid the stringent limits from direct searches, and, at the same time, be probed by indirect detection experiments. Motivated by the appearance of secluded dark matter in several model building endeavors, in this talk, we will present the sensitivity of several gamma-ray instruments (current and prospects), including Fermi-LAT, H.E.S.S., CTA, and SWGO, to secluded dark matter annihilations in the inner galactic halo, and in the dwarf spheroidal galaxies, covering a wide range dark matter masses, from tens of GeV to hundreds of TeV.

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Secluded WIMPs, dark QED with massive photons, and the galactic center gamma-ray excess

Cited by 20 publications

References 65 publications

Is it possible to discover a dark matter particle with an accelerator?

Is it possible to discover a dark matter particle with an accelerator?

Indirect Searches for Secluded Dark Matter

Indirect Searches for Secluded Dark Matter

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