$b \to s γ$ Decay in $SU(2)_L \times SU(2)_R \times U(1)$ Extensions of the Standard Model

Details $b \to s γ$ Decay in $SU(2)_L \times SU(2)_R \times U(1)$ Extensions of the Standard Model $b \to s γ$ Decay in $SU(2)_L \times SU(2)_R \times U(1)$ Extensions of the Standard Model

1993-10-21

arxiv.org/abs/hep-ph/9310332v1

Phys.Rev. D49 (1994) 5894-5903

Physics

High Energy Physics

High Energy Physics - Phenomenology

17 pages with 5 figures not included but available upon request, CALT-68-1893, TUM-T31-52/93

Scientific paper

10.1103/PhysRevD.49.5894

The rare radiative decay $b \to s \gamma$ is studied in $SU(2)_L \times SU(2)_R \times U(1)$ extensions of the Standard Model. Matching conditions for coefficients of operators appearing in the low energy effective Hamiltonian for this process are derived, and QCD corrections to these coefficients are analyzed. The $b \to s \gamma$ decay rate is then calculated and compared with the corresponding Standard Model result. We find that observable deviations from Standard Model predictions can occur in $SU(2)_L \times SU(2)_R \times U(1)$ theories for a reasonable range of parameter values.

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