Flavor violating bosonic squark decays at LHC

Autor(en)

Alfred Bartl, E. Ginina, B. Herrmann, K. Hidaka, W. Majerotto, W. Porod

Abstrakt

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(en)

Teilchenphysik

Externe Organisation(en)

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

Band

29

Anzahl der Seiten

24

ISSN

0217-751X

DOI

https://doi.org/10.1142/S0217751X14500353

Publikationsdatum

03-2014

Peer-reviewed

Ja

ÖFOS 2012

103034 Teilchenphysik

Schlagwörter

ASJC Scopus Sachgebiete

Astronomy and Astrophysics, Nuclear and High Energy Physics, Atomic and Molecular Physics, and Optics

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/b33e5ede-2db9-45c7-a6d9-ce87589e18fe