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

• Published in: The European physical journal. C, Particles and fields Vol. 81; no. 11; pp. 1 - 9
• 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: Berlin/Heidelberg Springer Berlin Heidelberg 01.11.2021; Springer Nature B.V; SpringerOpen
• Subjects: Astronomy; Astrophysics and Cosmology; Baryons; Dark matter; Elementary Particles; Hadrons; Heavy Ions; Large Hadron Collider; Measurement Science and Instrumentation; Novel Ideas for the high luminosity phase of the LHC; Nuclear Energy; Nuclear Physics; Physics; Physics and Astronomy; Quantum Field Theories; Quantum Field Theory; Regular Article - Experimental Physics; String Theory; Topology
• 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, ψ DS , which has a mass in the region 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.