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

• Published in: The European physical journal. C, Particles and fields Vol. 81; no. 11
• Main Authors: Brea Rodríguez, Alexandre, Chobanova, Veronika, Cid Vidal, Xabier, López Soliño, Saúl, Martínez Santos, Diego, Mombächer, Titus, Prouvé, Claire, Rodríguez Fernández, Emilio Xosé, Vázquez Sierra, Carlos
• Format: Journal Article
• Language: English
• Published: Springer 01.11.2021
• Subjects: Dark matter (Astronomy)
• ISSN: 1434-6044; 1434-6052
• DOI: 10.1140/epjc/s10052-021-09762-w

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, $$\psi _{\mathrm{DS}}$$ ψ DS , which has a mass in the region $$940 ~\mathrm{MeV}/c^2\le m_{\psi _{\mathrm{DS}}}\le 4430~\mathrm{MeV}/c^2$$ 940 MeV / c 2 ≤ m ψ DS ≤ 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 Upgrade II. We show that the LHCb experiment can cover the entire mass range of the hypothetical dark baryon.