Nonresonant three-body decays of B to J/ψππ
Physics Department, Semnan University - P.O.Box 35195-363, Semnan, Iran
Received: 3 August 2012
Accepted: 22 October 2012
We investigate the nonresonant three-body decays of the B meson to J/ψπ+π− and J/ψπ+π0 final-states mesons. There are a tree and a penguin diagram for these decays modes in the naive factorization approach. The transition matrix element of is factorized into a form factor multiplied by the J/ψ decay constant. We assume that the J/ψ meson remains stationary and the two pion mesons move back to back. We calculate the branching ratio of the and decays and obtain 1.09 × 10−5 and 5.45 × 10−6, respectively, while the experimental results are less than 1.2 × 10−5 and 7.3 × 10−6, respectively. The branching ratios obtained in our model, are compatible with the upper limits of the experimental results.
PACS: 13.85.Hd – Inelastic scattering: many-particle final states / 12.39.St – Factorization
© EPLA, 2012