Sneutrino Mixing Phenomena
نویسندگان
چکیده
In any model with nonzero Majorana neutrino masses, the sneutrino and antisneutrino of the supersymmetric extended theory mix. We outline the conditions under which sneutrino-antisneutrino mixing is experimentally observable. The mass-splitting of the sneutrino mass eigenstates and sneutrino oscillation phenomena are considered.
منابع مشابه
(S)neutrino properties in R-parity violating supersymmetry: I. CP-conserving Phenomena
R-parity-violating supersymmetry (with a conserved baryon number B) provides a framework for particle physics with lepton number (L) violating interactions. We examine in detail the structure of the most general R-parityviolating (B-conserving) model of low-energy supersymmetry. We analyze the mixing of Higgs bosons with sleptons and the mixing of charginos and neutralinos with charged leptons ...
متن کاملR–parity violation, sneutrino mixing phenomena and CP-violation in p¯p → ˜ν → ℓ + ℓ − + X
The sneutrino resonance reactions p¯ p → ˜ ν → ℓ + ℓ − +X, for ℓ = e, µ, τ , in the MSSM without R–parity are considered. We perform a cross–section analysis and show that present limits on some products of R / P couplings in the sneutrino sector can be significantly improved in future upgraded Tevatron runs. Furthermore, we introduce CP–violating and CP–conserving τ –spin asymmetries which are...
متن کاملSeesaw mechanism in the sneutrino sector and its consequences
The seesaw-extended MSSM provides a framework in which the observed light neutrino masses and mixing angles can be generated in the context of a natural theory for the TeV-scale. Sneutrinomixing phenomena provide valuable tools for connecting the physics of neutrinos and supersymmetry. We examine the theoretical structure of the seesaw-extended MSSM, retaining the full complexity of three gener...
متن کاملSneutrino-antisneutrino mixing and neutrino mass in anomaly-mediated supersymmetry breaking scenario.
In supersymmetric models with nonzero Majorana neutrino mass, the sneutrino and antisneutrino mix, which may lead to same-sign dilepton signals in future collider experiments. We point out that the anomaly-mediated supersymmetry breaking scenario has a good potential to provide an observable rate of such signals for the neutrino masses suggested by the atmospheric and solar neutrino oscillation...
متن کاملSneutrino-antisneutrino mixing at future colliders
Sneutrino-antisneutrino mixing occurs in a supersymmetric model where neutrinos have nonzero Majorana masses. This can lead to the sneutrino decaying into a final state with a “wrongsign charged lepton”. In an e−γ collider, the signal of the associated production of an electronsneutrino and the lighter chargino and their subsequent decays can be e−γ → eτ̃ 1 τ̃ − 1 + pT / where the τ̃1s are long-li...
متن کامل