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arXiv · 1704.06005

Lepton flavor universality violation without new sources of quark flavor violation

Jernej F. Kamenik·Yotam Soreq·Jure Zupan
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Abstract

We show that new physics models without new flavor violating interactions can explain the recent anomalies in the $b\to s\ell^+\ell^-$ transitions. The $b\to s\ell^+\ell^-$ arises from a $Z'$ penguin which automatically predicts the $V-A$ structure for the quark currents in the effective operators. This framework can be realized either in a renormalizable $U(1)'$ setup or be due to new strongly interacting dynamics. The di-muon resonance searches at the LHC are becoming sensitive to this scenario since the $Z'$ is relatively light, and could well be discovered in future searches by ATLAS and CMS.

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Jernej F. Kamenik, Yotam Soreq, Jure Zupan. 2017-04-20. Lepton flavor universality violation without new sources of quark flavor violation. https://doi.org/10.1103/physrevd.97.035002

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