Strange physics of dark baryons

Alonso-Álvarez, Gonzalo; Elor, Gilly; Escudero, Miguel; Fornal, Bartosz; Grinstein, Benjamín; Camalich, Jorge Martin
Referencia bibliográfica

Physical Review D

Fecha de publicación:
6
2022
Número de autores
6
Número de autores del IAC
1
Número de citas
40
Número de citas referidas
26
Descripción
Dark sector particles at the GeV scale carrying baryon number provide an attractive framework for understanding the origin of dark matter and the matter-antimatter asymmetry of the universe. We demonstrate that dark decays of hadronic states containing strange quarks—hyperons—offer excellent prospects for discovering such dark baryons. Building up on novel calculations of the matrix elements relevant for hyperon dark decays, and in view of various collider, flavor, and astrophysical constraints, we determine the expected rates at hyperon factories like BESIII and LHCb. We also highlight the interesting theoretical connections of hyperon dark decays to the neutron lifetime anomaly and mesogenesis.