TY - JOUR
T1 - Direct CP violation in three-body decays of the B meson by resonance effects
AU - Enomoto, Ryoji
AU - Okada, Yasuhiro
AU - Shimizu, Yasuhiro
N1 - Funding Information:
This work was supported in part by the Grant-in-Aid of the Ministry of Education, Science, Sports and Culture, Government of Japan.
PY - 1998/8/6
Y1 - 1998/8/6
N2 - We discuss direct CP violation in three-body decays of B meson such as B± → K± π+ π-, which involves various intermediate resonance states, such as B±- → K*i π± and B± → ρK±, where K*i represents the πK resonance. Due to the large final state interaction phases of the resonances, the CP asymmetry can be as large as the 25% level near the kinematical region where the Ki and ρ resonances overlap. By examining a Dalitz plot of this mode and combining a measurement of the branching ratio for B± → ρ± K, it is possible to extract the weak phase, φ3 = arg(-VudV*ub/(VcdV*cb)), of the Kobayashi-Maskawa matrix.
AB - We discuss direct CP violation in three-body decays of B meson such as B± → K± π+ π-, which involves various intermediate resonance states, such as B±- → K*i π± and B± → ρK±, where K*i represents the πK resonance. Due to the large final state interaction phases of the resonances, the CP asymmetry can be as large as the 25% level near the kinematical region where the Ki and ρ resonances overlap. By examining a Dalitz plot of this mode and combining a measurement of the branching ratio for B± → ρ± K, it is possible to extract the weak phase, φ3 = arg(-VudV*ub/(VcdV*cb)), of the Kobayashi-Maskawa matrix.
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U2 - 10.1016/S0370-2693(98)00592-9
DO - 10.1016/S0370-2693(98)00592-9
M3 - Article
AN - SCOPUS:0347594245
VL - 433
SP - 109
EP - 116
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
SN - 0370-2693
IS - 1-2
ER -