Di Luzio, Luca and Kirk, Matthew and Lenz, Alexander and Rauh, Thomas (2019) '∆Ms theory precision confronts flavour anomalies.', Journal of high energy physics., 2019 (12). p. 9.
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.
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|Publisher Web site:||https://doi.org/10.1007/JHEP12(2019)009|
|Publisher statement:||This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.|
|Date accepted:||19 November 2019|
|Date deposited:||07 January 2020|
|Date of first online publication:||02 December 2019|
|Date first made open access:||07 January 2020|
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