| Composition | Elementary particle |
|---|---|
| Statistics | Fermionic |
| Family | Fermion |
| Interactions | Electromagnetic |
| Status | Hypothetical |
| Symbol | γ͂ |
| Electric charge | 0 e |
| Spin | 1/2 |
Aphotino is a hypotheticalsubatomic particle, thefermionWIMP superpartner of thephoton predicted bysupersymmetry.[1][2] It is an example of agaugino. 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 ofultra-high-energy cosmic rays.[4]
Photinos have alepton number 0,baryon number 0, andspin 1/2. With anR-parity of −1 it is a possible candidate fordark matter.[5] It mixes with the superpartners of theZ boson (zino) and the neutral higgs (higgsino) to form theneutralino.
{{cite journal}}:|first1= has generic name (help)| Elementary |
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