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arXiv · 1303.6515

Dimension 7 operators in the b to s transition

Guillaume Chalons·Florian Domingo
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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.

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Guillaume Chalons, Florian Domingo. 2013-03-26. Dimension 7 operators in the b to s transition. https://doi.org/10.1103/physrevd.89.034004

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