One-loop QCD Corrections to Top Quark Decay into a Neutralino and Light Stop

Details One-loop QCD Corrections to Top Quark Decay into a Neutralino and Light Stop One-loop QCD Corrections to Top Quark Decay into a Neutralino and Light Stop

1996-06-19

arxiv.org/abs/hep-ph/9606385v3

Phys.Rev. D54 (1996) 6883-6889

Physics

High Energy Physics

High Energy Physics - Phenomenology

13 pages, 5 figures, revised version(using dimensional reduction technique, the corrections have been recalculated)

Scientific paper

10.1103/PhysRevD.54.6883

We calculate the one-loop QCD corrections to $t\rightarrow \tilde t_1 \tilde \chi^0_j$ using dimensional reduction scheme, including QCD and supersymmetric QCD corrections. The analytic expressions for the corrections to the decay width are given, which can easily be extended to $t\rightarrow \tilde \chi^+_j \tilde b_i $. The numerical results show that the correction amounts to more than a 10\% reduction in the partial width relative to the tree level result. We also compare the corrections in the no-mixing stop case with those in the mixing stop case.

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