Flavor violating bosonic squark decays at LHC

Author(s)
Alfred Bartl, E. Ginina, B. Herrmann, K. Hidaka, W. Majerotto, W. Porod
Abstract

We study quark flavor violation (QFV) in the squark sector of the Minimal Supersymmetric Standard Model (MSSM). We assume mixing between the second and the third squark generations, i.e. - mixing. We focus on QFV effects in bosonic squark decays, in particular on the decay into the lightest Higgs boson h(0), -> h(0), where are the lightest up-type squarks. We show that the branching ratio of this QFV decay can be quite large (up to 50%) due to large QFV trilinear couplings, and large - and - mixing, despite the strong constraints on QFV from B meson data. This can result in characteristic QFV final states with significant rates at LHC (14 TeV), such as pp -> -> t + h(0) + 3 jets + is not an element of(T) + X and pp -> -> tt (or (tt) over bar) + h(0) + 2 jets+ is not an element of(T) + X. The QFV bosonic squark decays can have an influence on the squark and gluino searches at LHC.

Organisation(s)
Particle Physics
External organisation(s)
Julius-Maximilians-Universität Würzburg, Laboratoire d'Annecy-le-Vieux de Physique Théorique (LAPTh), Tokyo Gakugei University (TGU), Österreichische Akademie der Wissenschaften (ÖAW)
Journal
International Journal of Modern Physics A
Volume
29
No. of pages
24
ISSN
0217-751X
DOI
https://doi.org/10.1142/S0217751X14500353
Publication date
03-2014
Peer reviewed
Yes
Austrian Fields of Science 2012
103034 Particle physics
Keywords
Portal url
https://ucris.univie.ac.at/portal/en/publications/flavor-violating-bosonic-squark-decays-at-lhc(b33e5ede-2db9-45c7-a6d9-ce87589e18fe).html