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Effective Lagrangian for b ---> s processes with QCD corrections

K. Adel
(
- Michigan U.
)
,
York-Peng Yao
(
- Michigan U.
)

Dec, 1992

15 pages

Published in:

Mod.Phys.Lett.A 8 (1993) 1679-1690

e-Print:

hep-ph/9302244 [hep-ph]

DOI:

10.1142/S0217732393001422

Report number:

UM-TH-92-32

View in:

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Abstract:

We present a complete calculation of the effective lagrangian for

b \rightarrow s

processes with

QCD

corrections, in the leading logarithm approximation, for the cases

m_t=m_w

and

m_t \gg m_w

. The effective lagrangian is then applied to estimate the

b \rightarrow s \gamma

decay rate. We find that it is enhanced by a factor of 6 for the case

m_t=m_w

, and a factor of about 2 for

m_t \gg m_w

. Our results differ from those found in the literature, but are not very different numerically for

m_t=m_w

.

Note:

15 pages, UM-TH-92-32 TeX, 1 figure (postscript) available upon request

bottom
quark: decay
decay: quark
neutral current: flavor changing
quantum chromodynamics: correction
leading logarithm approximation
renormalization group
numerical calculations
beauty --> strangeness photon

References(9)

Figures(0)

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