B\to \pi \rho, \pi \omega decays in perturbative QCD approach |
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| Authors: | C-D Lü M-Z Yang |
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| Institution: | (1) CCAST (World Laboratory), P.O. Box 8730, Beijing 100080, P.R. China , CN;(2) Institute of High Energy Physics, CAS, P.O. Box 918(4), Beijing 100039, P.R. China , CN;(3) Physics Department, Hiroshima University, Higashi-Hiroshima 739-8526, Japan , JP |
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| Abstract: | We calculate the branching ratios and CP-asymmetries for , and decays, in the perturbative QCD approach. In this approach, we calculate non-factorizable and annihilation type contributions,
in addition to the usual factorizable contributions. Our result is in agreement with the branching ratio of , measured by the CLEO and BABAR collaborations. We also predict large CP-asymmetries in these decays. These channels are useful to determine the CKM angle .
Received: 5 November 2001 / Published online: 8 February 2002 |
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