∆Ms theory precision confronts flavour anomalies

Di Luzio, Luca; Kirk, Matthew; Lenz, Alexander; Rauh, Thomas

doi:10.1007/jhep12(2019)009

∆Ms theory precision confronts flavour anomalies

Di Luzio, Luca; Kirk, Matthew; Lenz, Alexander; Rauh, Thomas

Authors

Luca Di Luzio

Matthew Kirk

Alexander Lenz

Thomas Rauh

Abstract

Based on recent HQET sum rule and lattice calculations we present updated Standard Model predictions for the mass differences of neutral B mesons: ΔMSMs=(18.4+0.7−1.2)ps−1 and ΔMSMd=(0.533+0.022−0.036)ps−1 study their impact onnew physics models that address the present hints of anomalous data in b → sℓℓ transitions. We also examine future prospects of further reducing the theory uncertainties and discuss the implications of a 2025 scenario with ΔMSM2025s=(18.4±0.5) ps−1. In particular, the latter yields upper bounds MZ′ ≲ 9TeV and MS3≲30TeVfor the minimal Z′ and S3 lepto-quark explanations of the b → sℓℓ anomalies, respectively.

Citation

Di Luzio, L., Kirk, M., Lenz, A., & Rauh, T. (2019). ∆Ms theory precision confronts flavour anomalies. Journal of High Energy Physics, 2019(12), Article 9. https://doi.org/10.1007/jhep12%282019%29009

Journal Article Type	Article
Acceptance Date	Nov 19, 2019
Online Publication Date	Dec 2, 2019
Publication Date	Dec 31, 2019
Deposit Date	Jan 7, 2020
Publicly Available Date	Jan 7, 2020
Journal	Journal of High Energy Physics
Print ISSN	1126-6708
Publisher	Scuola Internazionale Superiore di Studi Avanzati (SISSA)
Peer Reviewed	Peer Reviewed
Volume	2019
Issue	12
Article Number	9
DOI	https://doi.org/10.1007/jhep12%282019%29009

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