Direct CP violation in with - mixing effects: phenomenological approachZ.J. Ajaltouni1, O. Leitner1, 2, P. Perret1, C. Rimbault1 and A.W. Thomas2
1 Laboratoire de Physique Corpusculaire de Clermont-Ferrand, IN2P3/CNRS Université Blaise Pascal, 63177 Aubière Cedex, France
2 Department of Physics and Mathematical Physics and Special Research Centre for the Subatomic Structure of Matter, University of Adelaide, Adelaide 5005, Australia
(Received: 18 February 2003 / Revised version: 7 April 2003 / Published online: 23 May 2003 )
We present a detailed study of direct CP violation and the branching ratios in the channels , where V is a vector meson ( or ). Emphasis is put upon the important role played by - mixing effects in the estimation of the CP-violating asymmetry parameter, aCP, associated with the difference of the B and decay amplitudes. A thorough study of the helicity amplitudes is presented as a function of the pion-pion invariant mass. All of the calculations and simulations considered correspond to channels which will be analyzed at the LHCb facility.
© Società Italiana di Fisica, Springer-Verlag 2003