The $\msbar$ Renormalized Bottom Mass of Order ${\cal O}(α_s G_F M_t^2)$ and its Application to $Γ(H\to b\bar{b})$
Loading...
Date
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
Description
The renormalized mass of the bottom quark is calculated at the two loop level to order ${\cal O}(α_s G_F M_t^2)$ in the $\msbar$ renormalization scheme. Different strategies for the computation are outlined. The result is applied to the partial decay rate $Γ(H\rightarrow b\bar{b})$ of the Higgs boson into bottom quarks. Expressing the width in terms of the running mass instead of the bottom pole mass allows to treat the ${\cal O}(α_s G_F M_t^2)$ radiative corrections on the same footing as is commonly used in pure QCD calculations. The numerical values for the corrections are given and the sizes of different contributions are compared.
16 pages, LATEX, uses epsfig.sty, 15 figures included as uuencoded, gzipped, tarred postscript files. The complete postscript file, including figures, is available via anonymous ftp at ftp://ttpux2.physik.uni-karlsruhe.de/ttp95-35/ttp95-35.ps (129.13.102.139) or via www at http://ttpux2.physik.uni-karlsruhe.de/cgi-bin/preprints/ (TTP95-35) and at http://theor1.lbl.gov/www/theorgroup/papers/37881.ps
16 pages, LATEX, uses epsfig.sty, 15 figures included as uuencoded, gzipped, tarred postscript files. The complete postscript file, including figures, is available via anonymous ftp at ftp://ttpux2.physik.uni-karlsruhe.de/ttp95-35/ttp95-35.ps (129.13.102.139) or via www at http://ttpux2.physik.uni-karlsruhe.de/cgi-bin/preprints/ (TTP95-35) and at http://theor1.lbl.gov/www/theorgroup/papers/37881.ps