Composition | Elementary particle |
---|---|
Statistics | Fermionic |
Family | Fermion |
Interactions | Electromagnetic |
Status | Hypothetical |
Symbol | γ͂ |
Electric charge | 0 e |
Spin | 1/2 |
A photino is a hypothetical subatomic particle, the fermion WIMP superpartner of the photon predicted by supersymmetry. [1] [2] It is an example of a gaugino. Even though no photino has ever been observed so far, it is one of the candidates for the lightest supersymmetric particle in the universe. [3] It is proposed that photinos are produced by sources of ultra-high-energy cosmic rays. [4]
Photinos have a lepton number 0, baryon number 0, and spin 1/2. With an R-parity of −1 it is a possible candidate for dark matter. [5] It mixes with the superpartners of the Z boson (zino) and the neutral higgs (higgsino) to form the neutralino.
{{
cite journal}}
: |first1=
has generic name (
help)