Feebly interacting particle
Feebly interacting particles (FIPs) are defined by their extremely suppressed interactions with the Standard Model(SM) bosons and/or fermions. FIP candidates could be massive or massless and coupled to the SM particles through minimal coupling strength.[1] The light FIPs are theorized to be dark matter candidates, and, they provides an explanation for the origin of neutrino masses and CP symmetry in strong interactions.[2] These particles are potential thermal dark matter candidates extending the model of weekly interacting massive particles. FIP physics is also known as dark-sector physics.[1]
References
- ^ a b Lanfranchi, Gaia; Pospelov, Maxim; Schuster, Philip (2020-11-04). "The Search for Feebly-Interacting Particles". arXiv:2011.02157 [hep-ph]. doi:10.1146/annurev-nucl-102419-055056.
- ^ Agrawal, Prateek; Bauer, Martin; Beacham, James; Berlin, Asher; Boyarsky, Alexey; Cebrian, Susana; Cid-Vidal, Xabier; d'Enterria, David; De Roeck, Albert; Drewes, Marco; Echenard, Bertrand (2021-02-24). "Feebly-Interacting Particles:FIPs 2020 Workshop Report". arXiv:2102.12143 [hep-ph].