Minimal Leptoquark Explanation for the RD, RK, and (g − 2)_mu Anomalies

Bauer, Martin; Neubert, Matthias

Abstract

We show that by adding a single new scalar particle to the standard model, a TeV-scale leptoquark with the quantum numbers of a right-handed down quark, one can explain in a natural way three of the most striking anomalies of particle physics: the violation of lepton universality in B¯ → K¯ lþl− decays, the enhanced B¯ → DðÞτν¯ decay rates, and the anomalous magnetic moment of the muon. Constraints from other precision measurements in the flavor sector can be satisfied without fine-tuning. Our model predicts enhanced B¯ →K¯ ðÞνν¯ decay rates and a new-physics contribution toBs − B¯ s mixing close to the current central fit value.

Citation

Bauer, M., & Neubert, M. (2016). Minimal Leptoquark Explanation for the RD, RK, and (g − 2)_mu Anomalies. Physical Review Letters, 116(14), Article 141802. https://doi.org/10.1103/physrevlett.116.141802

• Journal Article Type: Article
• Acceptance Date: Mar 2, 2016
• Online Publication Date: Apr 8, 2016
• Publication Date: 2016-04
• Deposit Date: Nov 27, 2018
• Journal: Physical Review Letters
• Print ISSN: 0031-9007
• Electronic ISSN: 1079-7114
• Publisher: American Physical Society
• Peer Reviewed: Peer Reviewed
• Volume: 116
• Issue: 14
• Article Number: 141802
• DOI: https://doi.org/10.1103/physrevlett.116.141802
• Public URL: https://durham-repository.worktribe.com/output/1312907