https://doi.org/10.1140/epjc/s10052-017-4754-4
Regular Article - Theoretical Physics
Two-body decays of gluino at full one-loop level in the quark-flavour violating MSSM
1
Institut für Hochenergiephysik der Österreichischen Akademie der Wissenschaften, 1050, Vienna, Austria
2
Department of Physics, Tokyo Gakugei University, Koganei, Tokyo, 184-8501, Japan
* e-mail: elena.ginina@oeaw.ac.at
Received:
6
February
2017
Accepted:
9
March
2017
Published online:
25
March
2017
We study the two-body decays of the gluino at full one-loop level in the Minimal Supersymmetric Standard Model with quark-flavour violation (QFV) in the squark sector. The renormalisation is done in the 
scheme. The gluon and photon radiations are included by adding the corresponding three-body decay widths. We discuss the dependence of the gluino decay widths on the QFV parameters. The main dependence stems from the 
–
mixing in the decays to up-type squarks, and from the 
–
mixing in the decays to down-type squarks due to the strong constraints from B-physics on the other quark-flavour-mixing parameters. The full one-loop corrections to the gluino decay widths are mostly negative and of the order of about −10%. The QFV part stays small in the total width but can vary up to −8% for the decay width into the lightest 
squark. For the corresponding branching ratio the effect is somehow washed out by at least a factor of two. The electroweak corrections can be as large as 35% of the SUSY QCD corrections.
© The Author(s), 2017
