Single-top final states as a probe of top-flavoured dark matter models at the LHC

Journal of High Energy Physics

Priscilla Pani¹  Giacomo Polesello²  Giulia Rovelli³  Monika Blanke⁴ 

[1] Deutsches Elektronen-Synchrotron DESY, Notkestraße 85, 22607, Hamburg, Germany;Deutsches Elektronen-Synchrotron DESY, Platanenallee 6, 15738, Zeuthen, Germany;INFN, Sezione di Pavia, Via Bassi 6, 27100, Pavia, Italy;INFN, Sezione di Pavia, Via Bassi 6, 27100, Pavia, Italy;Università degli Studi di Pavia, Dipartimento di Fisica, Via Bassi 6, 27100, Pavia, Italy;Institute for Astroparticle Physics, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, D-76344, Eggenstein-Leopoldshafen, Germany;Institute for Theoretical Particle Physics, Karlsruhe Institute of Technology, Engesserstraße 7, 76131, Karlsruhe, Germany;

关键词: Beyond Standard Model;    Dark matter;    Flavor physics;    Hadron-Hadron scattering (experiments);    Top physics;   

DOI  :  10.1007/JHEP01(2021)194

来源: Springer

【 摘 要 】

Models incorporating flavoured dark matter provide an elegant solution to the dark matter problem, evading the tight LHC and direct direction constraints on simple WIMP models. In Dark Minimal Flavour Violation, a simple framework of flavoured dark matter with new sources of flavour violation, the constraints from thermal freeze-out, direct detection experiments, and flavour physics create well-defined benchmark scenarios for these models. We study the LHC phenomenology of four such scenarios, focusing on final states where a single top quark is produced accompanied by no jets, one jet from the fragmentation of light quarks or a b-tagged jet. For each of these signatures we develop a realistic LHC analysis, and we show that the proposed analyses would increase the parameter space coverage for the four benchmarks, compared to existing flavour-conserving LHC analyses. Finally we show the projected discovery potential of the considered signatures for the full LHC statistics at 14 TeV, and for the High Luminosity LHC.

【 授权许可】

CC BY