Direct CP violation in B → π+π−V with ρ⁰–ω mixing effects: phenomenological approach
Date
2003
Authors
Ajaltouni, Z.
Leitner, O.
Perret, P.
Rimbault, C.
Thomas, A.
Editors
Advisors
Journal Title
Journal ISSN
Volume Title
Type:
Journal article
Citation
European Physical Journal C: Particles and Fields, 2003; 29(2):215-233
Statement of Responsibility
Z.J. Ajaltouni, O. Leitner, P. Perret, C. Rimbault and A.W. Thomas
Conference Name
Abstract
We present a detailed study of direct CP violation and the branching ratios in the channels B<sup>0,±</sup> → π<sup>+</sup>π<sup>-</sup>V<sup>0,±</sup>, where V is a vector meson (K*<sup>0,±</sup> or ρ<sup>plusmn;</sup>). Emphasis is put upon the important role played by ρ<sup>0</sup>-ω mixing effects in the estimation of the CP-violating asymmetry parameter, a<inf>CP</inf>, associated with the difference of the B and B̄ 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.