Testing dark matter with Cherenkov light - prospects of HESS and CTA for exploring minimal supersymmetry

0546712 - FZÚ 2022 RIV CH eng J - Journal Article
Hryczuk, A. … Total 7 authors
Testing dark matter with Cherenkov light - prospects of HESS and CTA for exploring minimal supersymmetry.
Journal of High Energy Physics. Roč. 2019, č. 10 (2019), č. článku 043. ISSN 1126-6708
Research Infrastructure: CTA-CZ - 90046
Keywords : supersymmetry * phenomenology
OECD category: Particles and field physics
Impact factor: 5.833, year: 2018
Method of publishing: Open access
https://doi.org/10.1007/JHEP10(2019)043

We provide an updated and improved study of the prospects of the H.E.S.S. and Cherenkov Telescope Array (CTA) experiments in testing neutralino dark matter in the Minimal Supersymmetric Standard Model with nine free parameters (p9MSSM). We include all relevant experimental constraints and theoretical developments, in particular a calculation of the Sommerfeld enhancement for both present-day annihilations and the relic abundance. We perform a state-of-the-art analysis of the CTA sensitivity with a log- likelihood test ratio statistics and apply it to a numerical scan of the p9MSSM parameter space focusing on a TeV scale dark matter. We find that, assuming Einasto profile of dark matter halo in the Milky Way, H.E.S.S. has already been able to nearly reach the so-called thermal WIMP value, while CTA will go below it by providing a further improvement of at least an order of magnitude.
Permanent Link: http://hdl.handle.net/11104/0323117