Английская Википедия:Feebly interacting particle
Шаблон:Use dmy dates Feebly interacting particles (FIPs) are subatomic particles defined by having extremely suppressed interactions with the Standard Model (SM) bosons and / or fermions. These particles are potential thermal dark matter candidates, extending the model of weakly interacting massive particles (WIMPs) to include weakly interacting sub-eV particles (WISPs) and others. FIP physics is also known as dark-sector physics.[1]
Candidates
FIP candidates could be massive (FIMP / WIMP) or massless and coupled to the SM particles through some minimal coupling strength.[1] The light FIPs are theorized to be dark matter candidates, and, they provide an explanation for the origin of neutrino masses and CP symmetry in strong interactions.[2]
Neutrinos technically qualify as FIPs, but usually when the acronym "FIP" is used, it is intended to refer to some other, as-yet unknown particle. Cai, Cacciapaglia, and Lee (2022)[3] proposed massive gravitons as feebly Interacting particle candidates.[3][4]
See also
- WIMP – weakly interacting massive particle
- WISP – weakly interacting sub-eV / slight / slender particle
References
Шаблон:Theoretical-physics-stub
Шаблон:Particle-stub
