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W. Beenakker, M. Kramer, T. Plehn, M. Spira, and P. M. Zerwas, Nucl. Phys. B515
Original
1998
Earlier work this paper cites.
T. Hahn, Comput. Phys. Commun. 140
2001
Earlier work this paper cites.

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G. Belanger, F. Boudjema, S. Kraml, A. Pukhov, and A. Semenov, Phys. Rev. D73
2006
Cited alongside, same era.

Then

S. Frank, CP Violating Asymmetries Induced by Supersymmetry , Master’s thesis, Johannes Kepler University Linz (2008), arXiv:0909.3969
Original
2008
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2009

CP Violating Asymmetry in Stop Decay into Bottom and Chargino

Frank, Sebastian M. R., Eberl, Helmut

Understand

In the MSSM with complex parameters, loop corrections to the decay of a stop into a bottom quark and a chargino can lead to a CP violating decay rate asymmetry.

We calculate this asymmetry at full one-loop level and perform a detailed numerical study, analyzing the dependence on the parameters and complex phases involved.
In addition, we take the Yukawa couplings of the top and bottom quark running.
We account for the constraints on the parameters coming from several experimental limits.