Perhaps scalar neutrinos are the lightest supersymmetric partners |
| |
Authors: | John S Hagelin GL Kane S Raby |
| |
Institution: | 1. Randall Laboratory of Physics, University of Michigan, Ann Arbor, MI 48109, USA |
| |
Abstract: | We consider the possibility that the scalar partners of the neutrinos are the least massive supersymmetric partners, and show that this alternative is compatible with cosmological constraints, which put a significant lower bound on photino masses but not on masses. Various consequences are examined: the photon counting rate for may be large; the rate for by exchange is enhaced; Z0→ increases Γ(Z0) by about 0.25 GeV; may be enhanced; the decay may be detectable; there can be additional contributions to the rare decay ; restrictions on gluino masses, which depend on photinos interacting before they decay, have to be re-examined; scalar neutrinos have suitable characteristics as candidates for dark matter in the universe. We discuss one currently fashionable class of models that can predicr a light . |
| |
Keywords: | |
本文献已被 ScienceDirect 等数据库收录! |
|