
A photino is a hypothetical subatomic particle, the fermion WIMP superpartner of the photon predicted by supersymmetry. It is an example of a gaugino. 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. It mixes with the superpartners of the Z boson (zino) and the neutr...
Found on
http://en.wikipedia.org/wiki/Photino

(from the article `supersymmetry`) ...supersymmetric partners, which have been given the names of selectrons and squarks. Similarly, known bosons such as the photon and the gluon ... ...have supersymmetric partners, dubbed sleptons and squarks, with integer spin; and the photon, W, Z, gluon, and graviton have counterparts with ... [2...
Found on
http://www.britannica.com/eb/a-z/p/60
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