Relating bottom quark mass in DR-bar and MS-bar regularization schemes
High Energy Physics - Phenomenology
2011-01-27 v1
Abstract
The value of the bottom quark mass at M_Z in the DR-bar scheme is an important input for the analysis of supersymmetric models with a large value of tan(beta). Conventionally, however, the running bottom quark mass extracted from experimental data is quoted in the MS-bar scheme at the bottom mass scale. We describe a two loop procedure for the conversion of the bottom quark mass from MS-bar to DR-bar scheme. The Particle Data Group value m_b(m_b) = 4.2 \pm 0.2 GeV in the MS-bar scheme corresponds to a range of 2.65-3.03 GeV for m_b(M_Z) in the DR-bar scheme.
Keywords
Cite
@article{arxiv.hep-ph/0207126,
title = {Relating bottom quark mass in DR-bar and MS-bar regularization schemes},
author = {H. Baer and J. Ferrandis and K. Melnikov and X. Tata},
journal= {arXiv preprint arXiv:hep-ph/0207126},
year = {2011}
}
Comments
RevTex4, 5 pages, 1 figure