Gluino contribution to radiative B decays: Organization of QCD corrections and leading order results

Francesca Borzumati; Christoph Greub; Tobias Hurth; Daniel Wyler

doi:10.1103/PhysRevD.62.075005

Gluino contribution to radiative B decays: Organization of QCD corrections and leading order results

Francesca Borzumati, Christoph Greub, Tobias Hurth, Daniel Wyler

Research output: Contribution to journal › Article

2 Citations (Scopus)

Abstract

The gluino-induced contributions to the decay (Formula presented) are investigated in supersymmetric frameworks with generic sources of flavor violation. It is shown that, when QCD corrections are taken into account, the relevant operator basis of the standard model effective Hamiltonian gets enlarged to contain (i) magnetic and chromomagnetic operators with a factor of (Formula presented) and weighted by a quark mass (Formula presented) or (Formula presented) (ii) magnetic and chromomagnetic operators of lower dimensionality, also containing (Formula presented) and (iii) four-quark operators weighted by a factor (Formula presented) Numerical results are given, showing the effects of the leading order QCD corrections on the inclusive branching ratio for (Formula presented) Constraints on supersymmetric sources of flavor violation are derived.

Original language	English
Number of pages	1
Journal	Physical Review D - Particles, Fields, Gravitation and Cosmology
Volume	62
Issue number	7
DOIs	https://doi.org/10.1103/PhysRevD.62.075005
Publication status	Published - 2000 Jan 1
Externally published	Yes

ASJC Scopus subject areas

Nuclear and High Energy Physics
Physics and Astronomy (miscellaneous)

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Borzumati, F., Greub, C., Hurth, T., & Wyler, D. (2000). Gluino contribution to radiative B decays: Organization of QCD corrections and leading order results. Physical Review D - Particles, Fields, Gravitation and Cosmology, 62(7). https://doi.org/10.1103/PhysRevD.62.075005

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abstract = "The gluino-induced contributions to the decay (Formula presented) are investigated in supersymmetric frameworks with generic sources of flavor violation. It is shown that, when QCD corrections are taken into account, the relevant operator basis of the standard model effective Hamiltonian gets enlarged to contain (i) magnetic and chromomagnetic operators with a factor of (Formula presented) and weighted by a quark mass (Formula presented) or (Formula presented) (ii) magnetic and chromomagnetic operators of lower dimensionality, also containing (Formula presented) and (iii) four-quark operators weighted by a factor (Formula presented) Numerical results are given, showing the effects of the leading order QCD corrections on the inclusive branching ratio for (Formula presented) Constraints on supersymmetric sources of flavor violation are derived.",

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