Two loop O (alpha-s**2) correction to the H ---> b anti-b decay rate induced by the top quark

Kniehl, Bernd A.

doi:10.1016/0370-2693(94)01472-O

Two loop O (alpha-s**2) correction to the H ---> b anti-b decay rate induced by the top quark

Bernd A. Kniehl
(
- Munich, Max Planck Inst.
)

Oct, 1994

6 pages

Published in:

Phys.Lett.B 343 (1995) 299-303

e-Print:

hep-ph/9410356 [hep-ph]

DOI:

10.1016/0370-2693(94)01472-O

Report number:

MPI-PHT-94-69

View in:

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Abstract:

We present the two-loop QED and QCD corrections to the

f\bar fH

Yukawa coupling that are induced by the exchange of a virtual photon or gluon, respectively, with a heavy-fermion loop inserted. As an application, we study the corresponding \O(\alpha_s~2M_H~2/m_t~2) correction to the

H\to b\bar b

decay rate.

Higgs particle: nonleptonic decay
nonleptonic decay: Higgs particle
bottom: pair production
pair production: bottom
coupling: Yukawa
Yukawa: coupling
correction: higher-order
photon: exchange
exchange: photon
gluon: exchange

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