Leading Order QCD Corrections to $b\rightarrow s \, γ$ and $b \rightarrow s \, g$ Decays in Three Regularization Schemes

Details Leading Order QCD Corrections to $b\rightarrow s \, γ$ and $b \rightarrow s \, g$ Decays in Three Regularization Schemes Leading Order QCD Corrections to $b\rightarrow s \, γ$ and $b \rightarrow s \, g$ Decays in Three Regularization Schemes

1993-11-24

arxiv.org/abs/hep-ph/9311357v1

Nucl.Phys. B421 (1994) 41-64

Physics

High Energy Physics

High Energy Physics - Phenomenology

35 pp + 4 figs not included (available by anonymous ftp at amisan.iss.infn.it (141.108.15.215), directory /ftp/dred ), LaTeX,

Scientific paper

10.1016/0550-3213(94)90223-2

We discuss in detail the calculation of the leading order QCD corrections to the Effective Hamiltonian which governs $b \rightarrow s\, \gamma$ and $b \rightarrow s \, g$ transitions in three different regularization schemes (HV, NDR and DRED). We show that intermediate stages of the calculation do depend on the regularization, but the same scheme independent coefficients can be obtained in all the considered schemes. A detailed discussion of the results already present in the literature is also given.

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