TY - JOUR
T1 - CP Violation in B ? Kl+l- Decays
T2 - Corfu Summer Institute 2023
AU - Fleischer, Robert
AU - Malami, Eleftheria
AU - Rehult, Anders
AU - Vos, K. Keri
N1 - Funding Information:
A.R. would like to thank the organizers for the invitation to the enjoyable conference. This research has been supported by the Netherlands Organisation for Scientific Research (NWO).
Publisher Copyright:
© Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND 4.0).
PY - 2024/7/31
Y1 - 2024/7/31
N2 - Experimental data on rare B-meson decays indicate deviations from Standard Model predictions. In studies of these decays, new sources of CP violation are often neglected. We discuss CP violation in the rare B-meson decays B ? Kl+l-(l = µ, e) and point to two phenomena that arise when new sources of CP violation are included. First, the Wilson coefficients C9l and C10l become complex, and we show how we can extract their values from measurements of direct and mixing-induced CP asymmetries. Second, new sources of CP violation can generate nontrivial lepton flavour universality violation. Such violation is usually measured through ratios like RK and RK*, but we show that measuring only these ratios leaves a large parameter space unexplored. These results bring exciting opportunities to reveal New Physics effects in the high-precision era.
AB - Experimental data on rare B-meson decays indicate deviations from Standard Model predictions. In studies of these decays, new sources of CP violation are often neglected. We discuss CP violation in the rare B-meson decays B ? Kl+l-(l = µ, e) and point to two phenomena that arise when new sources of CP violation are included. First, the Wilson coefficients C9l and C10l become complex, and we show how we can extract their values from measurements of direct and mixing-induced CP asymmetries. Second, new sources of CP violation can generate nontrivial lepton flavour universality violation. Such violation is usually measured through ratios like RK and RK*, but we show that measuring only these ratios leaves a large parameter space unexplored. These results bring exciting opportunities to reveal New Physics effects in the high-precision era.
M3 - Conference article in journal
SN - 1824-8039
VL - 463
JO - P o S - Proceedings of Science
JF - P o S - Proceedings of Science
M1 - 128
Y2 - 27 August 2023 through 1 October 2023
ER -