https://doi.org/10.1140/epjc/s10052-020-08518-2
Regular Article - Theoretical Physics
Enhanced CP asymmetries in 
1
IJCLab, Pôle Théorie (Bât. 210), CNRS/IN2P3 et Université Paris-Saclay, 91405, Orsay, France
2
Department of Physics, University of Ljubljana, Jadranska 19, 1000, Ljubljana, Slovenia
3
Jožef Stefan Institute, P. O. Box 3000, Jamova 39, 1001, Ljubljana, Slovenia
Received:
27
August
2020
Accepted:
2
October
2020
Published online:
12
October
2020
We show that the current values of 
and 
can be accommodated by allowing a nonzero New Physics coupling 
to be complex, both in the scenario in which only is affected, and in the scenario with complex 
satisfying 
. A presence of the weak CP-violating phase can then be tested by measuring the CP-asymmetry, 
. We show that this asymmetry is enhanced around the peak of each 
-resonance, and in fact more pronounced in the close vicinity of 
and 
. Therefore, measuring before and after the resonances’ peak could be revelatory of the CP-violation that originates from beyond the Standard Model, or to be a significant constrain when building a realistic scenario of New Physics.
© The Author(s) 2020
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