Contributions of vector-like quarks to radiative B meson decay

Abstract

We study the decay B\to X_sγin a minimal extension of the standard model with extra up- and down-type quarks whose left- and right-handed components are both SU(2) singlets. Constraints on the extended Cabibbo-Kobayashi-Maskawa matrix are obtained from the experimental results for the branching ratio. Even if the extra quarks are too heavy to be detected in near-future colliders, the branching ratio could have a value which is non-trivially different from the prediction of the standard model.

11 pages, LATEX file with 3 EPS figures

References in corpus (2)

• CP asymmetry for radiative B-meson decay in the supersymmetric standard model
• Fitting Precision Electroweak Data with Exotic Heavy Quarks

Cited by in corpus (13)

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• Inclusive dileptonic rare B decays with an extra generation of vector-like quarks
• Flavor-changing interactions with singlet quarks and their implications for the LHC
• Direct CP Asymmetry of B -> X_d,s γin a model with Vector quarks
• A model with vectorlike fermions and $U(1{)}_X$ symmetry: CKM unitarity, $b\to s$ transitions, and prospect at Belle II
• Distinguishing Signatures of top-and bottom-type heavy vectorlike quarks at the LHC
• Large effects on $\BsBs$ mixing by vector-like quarks
• b \to ss\bar{d}$ in a Vector Quark Model