Two-loop O(alpha_s y^2) and O(y^4) MSSM corrections to the pole mass of the b-quark

Details Two-loop O(alpha_s y^2) and O(y^4) MSSM corrections to the pole mass of the b-quark Two-loop O(alpha_s y^2) and O(y^4) MSSM corrections to the pole mass of the b-quark

2004-10-08

arxiv.org/abs/hep-ph/0410128v1

Phys.Lett.B604:91-97,2004

Physics

High Energy Physics

High Energy Physics - Phenomenology

AMS-LaTeX, 8 pages, 6 PostScript figures

Scientific paper

10.1016/j.physletb.2004.10.051

The paper is devoted to the calculation of the two-loop O(alpha_s y^2) and O(y^4) MSSM corrections to the relation between the pole mass of the b-quark and its running mass in DR scheme. To evaluate the needed diagrams the large mass expansion procedure is used. The obtained contributions are negative in most of the regions of the parameter space and partly compensate the positive O(alpha_s^2) contribution calculated earlier.

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