Impact of slepton generation mixing on the search for sneutrinos

Author(s)
Alfred Bartl, Keisho Hidaka, Karl Hohenwarter-Sodek, Thomas Kernreiter, Walter Majerotto, Werner Porod
Abstract

We perform a systematic study of sneutrino production and decays in the Minimal Supersymmetric Standard Model (MSSM) with slepton generation mixing. We study both fermionic decays like sneutrino \to l^- chargino^+, nu neutralino and bosonic decays such as sneutrino \to slepton^- H^+, slepton^- W^+. We show that the effect of slepton generation mixing on the sneutrino production cross sections and its decay branching ratios can be quite large in a significant part of the MSSM parameter space despite the very strong experimental limits on lepton flavour violating processes. This could have an important impact on the search for sneutrinos and the determination of the MSSM parameters at future colliders, such as LHC, ILC, CLIC and muon collider.

Organisation(s)
Particle Physics
External organisation(s)
Tokyo Gakugei University (TGU), Österreichische Akademie der Wissenschaften (ÖAW), Universität Zürich (UZH)
Journal
Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume
660
Pages
228-235
No. of pages
8
ISSN
0370-2693
DOI
https://doi.org/10.1016/j.physletb.2007.12.040
Publication date
2008
Peer reviewed
Yes
Austrian Fields of Science 2012
1030 Physics, Astronomy
Portal url
https://ucrisportal.univie.ac.at/en/publications/impact-of-slepton-generation-mixing-on-the-search-for-sneutrinos(c36906bf-200c-4895-86e7-6bee45bb7086).html