Charged Higgs and Stau Production in Anomaly Mediated Supersymmetry Breaking

Charged Higgs production in association with staus in electron positron annihilation is a signal of supersymmetry with bilinear R-Parity violation. In this model, neutrino masses and mixing angles are generated due to mixing with neutralinos. We show how parameters related to neutrino physics can be determined at a 500 fb Linear Collider from measurements of charged Higgs and stau production cross sections and decay rates. This can be achieved in AMSB where charged Higgs and stau can have similar masses. In supersymmetric models which include Bilinear R-Parity Violation (BRpV)[1], the charged Higgs boson field mixes with the charged sleptons and as a result their phenomenology changes dramatically[2]. In particular, charged Higgs and staus can be produced in association in electron positron collisions. This mixed production is a signal of BRpV since it is not present in models with only trilinear R-Parity violating couplings[3]. The associated production cross section is usually small, nevertheless, a near degeneracy of the scalars can enhance it. This is possible in Anomaly Mediated Supersymmetry Breaking (AMSB) models[4], as it was shown in[5]. Here we show that using measurements of production cross sections, decay rates, and masses in the charged scalar sector taken at a future Linear Collider[6], it is possible to extract values for the parameters associated to neutrino physics[7]. Speaker. Presented at Workshop on Physics and Experiments with Future Electron-Positron Linear Colliders August 26-30, 2002, Jeju Island, Korea.