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Stop Decay into Right-handed Sneutrino LSP at Hadron Colliders

Andre de Gouvea·Shrihari Gopalakrishna·Werner Porod
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Abstract

Right-handed neutrinos offer us the possibility of accommodating neutrino masses. In a supersymmetric model, this implies the existence of right-handed sneutrinos. Right-handed sneutrinos are expected to be as light as other supersymmetric particles if the neutrinos are Dirac fermions, or if the lepton-number breaking scale is at (or below) the supersymmetry (SUSY) breaking scale, assumed to be around the electroweak scale. Depending on the mechanism of SUSY breaking, the lightest right-handed sneutrino may be the lightest supersymmetric particle (LSP). We consider the unique hadron collider signatures of a weak scale right-handed sneutrino LSP, assuming R-parity conservation. For concreteness, we concentrate on stop pair-production and decay at the Tevatron and the Large Hadron Collider, and briefly comment on the production and decay of other supersymmetric particles.

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Andre de Gouvea, Shrihari Gopalakrishna, Werner Porod. 2006-11-21. Stop Decay into Right-handed Sneutrino LSP at Hadron Colliders. https://doi.org/10.1088/1126-6708%2F2006%2F11%2F050

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