Relating bottom quark mass in DR-bar and MS-bar regularization schemes
H. Baer, J. Ferrandis, K. Melnikov, X. Tata
Abstract
The value of the bottom quark mass at MZ 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 mb(mb) = 4.2 0.2 GeV in the MS-bar scheme corresponds to a range of 2.65-3.03 GeV for mb(MZ) in the DR-bar scheme.
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