학술논문
SU (2)× U (1) gauge invariance and the shape of new physics in rare B decays
Document Type
article
Author
Source
Physical Review Letters. 113(24)
Subject
Language
Abstract
New physics effects in B decays are routinely modeled through operators invariant under the strong and electromagnetic gauge symmetries. Assuming the scale for new physics is well above the electroweak scale, we further require invariance under the full standard model gauge symmetry group. Retaining up to dimension-six operators, we unveil new constraints between different new physics operators that are assumed to be independent in the standard phenomenological analyses. We illustrate this approach by analyzing the constraints on new physics from rare Bq (semi-)leptonic decays.