Dimension 7 operators in the b to s transition
High Energy Physics - Phenomenology
2014-02-12 v1
Abstract
We extend the low-energy effective field theory relevant for b to s transitions up to operators of mass-dimension 7 and compute the associated anomalous-dimension matrix. We then compare our findings to the known results for dimension 6 operators and derive a solution for the renormalization group equations involving operators of dimension 7. We finally apply our analysis to a particularly simple case where the Standard Model is extended by an electroweak-magnetic operator and consider limits on this scenario from the decays Bs to mu+ mu- and B to K nu nubar.
Cite
@article{arxiv.1303.6515,
title = {Dimension 7 operators in the b to s transition},
author = {Guillaume Chalons and Florian Domingo},
journal= {arXiv preprint arXiv:1303.6515},
year = {2014}
}
Comments
33 pages, 12 figures