Extended gamma-ray emission from Coy Dark Matter

By C. Bœhm, M. Dolan, C. McCabe, Michael Spannowsky, C. J. Wallace. 2014

142 citations recorded by the source corpus.

We show that it is possible for WIMP dark matter to produce a large signal in indirect dark matter searches without producing signals elsewhere. We illustrate our point by fitting the Fermi-LAT extended galactic gamma-ray excess with a simple model of Dirac dark matter that annihilates primarily into b quarks via a pseudoscalar. Current collider constraints are weak while the 14 TeV LHC run will constrain a limited portion of the parameter space. No signal is expected in additional indirect searches or at future direct detection experiments. Our results emphasise the importance of fully understanding potential indirect signals of dark matter as they may provide the only information about the dark matter particle.

Subfields: Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/67932637ff0a9dbe8b4973e7b6c6b1e776463cf8

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Nuclear and High Energy Physics

Citations in the corpus

A taste of dark matter: flavour constraints on pseudoscalar mediators (2014, unknown): “or light mediators the suppression of DM scattering in direct detection experiments is signicantly reduced, so that it might be possible to obtain observable signals in present or future experiments [11] and possibly even explain the DAMA modulation signal [13]. Moreover, if the pseudoscalar has a m”
Revised constraints and Belle II sensitivity for visible and invisible axion-like particles (2017, background): “. Finally, ALPs oer an interesting possibility to connect the SM to a potential DM particle in such a way that thermal freeze-out can be reconciled with constraints from direct detection experiments [20,34,35]. Given the level of detail and sophistication of many recent analyses, it is rather surpri”
Constraining Dark Sectors at Colliders: Beyond the Effective Theory Approach (2014, background): “Therefore, for pseudoscalars, taking existing limits into account [66,67], indirect detection experiments can result in stronger bounds than direct detection experiments [68,69].”
Toward (finally!) ruling out Z and Higgs mediated dark matter models (2016, background): “lso note that uncertainties associated with the distribution of dark matter in these systems could plausibly weaken these constraints to some degree [38{ 41]. It may also be possible in this scenario [22,42{44] to generate the gamma-ray excess observed from the region surrounding the Galactic Center”
ALPtraum: ALP production in proton beam dump experiments (2015, background): “In these models it is easily possible to reproduce the observed dark matter relic abundance from thermal freeze-out while evading the strong constraints from direct and indirect detection experiments [16, 17].”