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arXiv · 2106.12870

Prospects on searches for baryonic Dark Matter produced in $b$-hadron decays at LHCb

Alexandre Brea Rodríguez·Veronika Chobanova·Xabier Cid Vidal·Saúl López Soliño·Diego Martínez Santos·Titus Mombächer·Claire Prouvé·Emilio Xosé Rodríguez Fernández·Carlos Vázquez Sierra
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Abstract

A model that can simultaneously explain Dark Matter relic density and the apparent matter anti-matter imbalance of the universe has been recently proposed. The model requires $b$-hadron branching fractions to Dark Matter at the per mille level. The $b$-hadrons decay to a dark sector baryon, $ψ_{\rm{DS}}$, which has a mass in the region $940$ MeV/c$^{2} \leq m(ψ_{\rm{DS}}) \leq 4430$ MeV/c$^{2}$. In this paper, we discuss the sensitivity of the LHCb experiment to search for this dark baryon, covering different types of topology and giving prospects for Runs 3 and 4 of the LHC, as well as for the proposed Phase-II Upgrade. We show that the LHCb experiment can cover the entire mass range of the hypothetical dark baryon.

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Alexandre Brea Rodríguez, Veronika Chobanova, Xabier Cid Vidal, Saúl López Soliño, Diego Martínez Santos, Titus Mombächer, Claire Prouvé, Emilio Xosé Rodríguez Fernández, Carlos Vázquez Sierra. 2021-11-03. Prospects on searches for baryonic Dark Matter produced in $b$-hadron decays at LHCb. https://doi.org/10.1140/epjc%2Fs10052-021-09762-w

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