https://doi.org/10.1140/epjc/s10052-012-2114-y
Regular Article - Theoretical Physics
MSSM corrections to the top–antitop quark forward–backward asymmetry at the Tevatron
1
PRISMA Cluster of Excellence, Institute for Physics (WA THEP), Johannes Gutenberg-Universität, 55099, Mainz, Germany
2
Department of Physics, University at Buffalo, The State University of New York, Buffalo, NY, 14260-1500, USA
3
Institute for Theoretical Particle Physics, Karlsruhe Institute of Technology (KIT), 76128, Karlsruhe, Germany
* e-mail: berge@uni-mainz.de
Received:
12
March
2012
Revised:
12
June
2012
Published online:
24
August
2012
We study the effects of the complete supersymmetric QCD and electroweak one-loop corrections to the 
forward–backward asymmetry at the Fermilab Tevatron 
collider. We work in the complex Minimal Supersymmetric Standard Model (MSSM), only restricted by the condition of minimal flavor violation (MFV). We perform a comprehensive scan over the relevant parameter space of the complex MFV–MSSM and determine the maximal possible contributions of these MSSM loop corrections to the forward–backward asymmetry in the center-of-mass frame. We find that the SUSY loop-induced asymmetry at the Tevatron with 
can be at most +2 % for very light SUSY particles, i.e. for 
and 
, which reduces to 0.1 % for gluino and squark masses in the range 850 GeV–1000 GeV and a light top squark of 
.
© Springer-Verlag / Società Italiana di Fisica, 2012
