https://doi.org/10.1140/epjc/s10052-023-12013-9
Regular Article - Theoretical Physics
and 
confront new physics in 
1
Theoretical Physics Department, CERN, 1211, Geneva 23, Switzerland
2
School of Physics and Astronomy, University of Southampton, SO17 1BJ, Southampton, UK
Received:
18
July
2023
Accepted:
5
September
2023
Published online:
22
September
2023
Several new physics scenarios that address anomalies in B-physics predict an enhancement of 
with respect to its Standard Model prediction. Such scenarios necessarily imply modifications of the lifetime ratio and the lifetime difference . In this work, we explore indirect bounds provided by these observables over new physics scenarios. We also estimate future projections, showing that future experimental and theoretical improvements on both and have the potential to provide bounds competitive with those directly extracted from 
transitions. After performing a model-independent analysis, we apply our results to the particular case of leptoquark mediators proposed to address the 
anomalies.
© The Author(s) 2023
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