title: Sneutrino-antisneutrino mixing and neutrino mass in anomaly-mediated supersymmetry breaking scenario.
abstract: 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 oscillations. It is noted also that the sneutrino-antisneutrino mixing can provide much stronger information on some combinations of the neutrino masses and mixing angles than the neutrino experiments.
authors.affiliation: Department of Physics, Korea Advanced Institute of Science and Technology, Taejon, 305-701 Korea.
authors.forename: Kiwoon
authors.initials: K
authors.lastname: Choi
authors.forename: Kyuwan
authors.initials: K
authors.lastname: Hwang
authors.forename: Wan Young
authors.initials: WY
authors.lastname: Song