Speaker
Description
Candidates for dark matter are proposed and searched from the sub meV to TeV scales. The indirect observations don’t provide sufficient power to constrain to a narrow parameter space of the searches. One of the dark matter candidates, a deeply bound (uuddss) sexaquark, S, with mass in the GeV range is hypothesized to be long lived and very compact, described within the Standard Model of Particle Physics without extensions. S properties make it particularly challenging to explore experimentally.
In this contribution we will show an experimental scheme [1] in which S could be produced at rest through the formation of helium-3 antiprotonic atoms and their subsequent annihilation into S +K^+K^+ + pi^-. This channel is particularly clean as there is no other channel naturally populating the same final state. It can be uniquely identified both through the unique tag of a S=+2, Q=+1 final state, as well as through full kinematic reconstruction of the final state recoiling against it.
[1] M. Doser, G. Farrar, G. Kornakov, “Searching for a dark matter particle with anti-protonic atoms”, Eur.Phys.J.C 83 (2023) 12, 1149, arXiv:2302.00759 [hep-ph]
