Speaker
Prof.
Leonard Lesniak
(Henryk Niewodniczanski Institute of Nuclear Physics PAS, Krakow, Poland)
Description
Large CP-violating asymmetry effects in the
B+- --> K+- K+ K- decays have been predicted in the QCD factorization model [1].
The model includes strong K+ K- final-state long-distance interactions in the S-, P-, and also (in the recent analysis) D- wave two-body states.
The S-wave two-body unitarity conditions involve interchannel couplings of the kaon-kaon states with the intermediate states of two pions and four pions.
As a result the pion-pion to kaon-kaon rescattering effects are included in the model.
It is shown how the weak phase differences together with the existence of two different strong phases of the S-wave decay amplitudes (related to the phases of the kaon scalar strange and non-strange form factors) contribute to the CP-asymmetry in question.
The theoretical results are compared with recent experimental data of the LHCb and BABAR Collaborations [2].
References:
[1] A. Furman, R. Kaminski, L. Lesniak, P. Zenczykowski, Phys. Lett. B 699 (2011) 102.
[2] L. Lesniak, P. Zenczykowski, Phys. Lett. B 737 (2014) 201.
Author
Prof.
Leonard Lesniak
(Henryk Niewodniczanski Institute of Nuclear Physics PAS, Krakow, Poland)
Co-author
Prof.
Piotr Zenczykowski
(Henryk Niewodniczanski Institute of Nuclear Physics PAS, Krakow, Poland)
