DOI: 10.1140/epjc/s2003-01219-0
Direct
CP violation in
with
-
mixing effects:
phenomenological approach
Z.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
ziad@clermont.in2p3.fr
oleitner@physics.adelaide.edu.au
perret@clermont.in2p3.fr
rimbault@clermont.in2p3.fr
athomas@physics.adelaide.edu.au
(Received: 18 February 2003 / Revised version: 7 April 2003 / Published online: 23 May 2003 )
Abstract
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