On the B $ +AFw-to J/+AFw-Psi K^* $ Decay
| dc.creator | Nguyen, Xuan Son | |
| dc.creator | Pham, Xuan-Yem | |
| dc.date | 2001-10-22 | |
| dc.date | 2002-06-28 | |
| dc.date.accessioned | 2026-07-07T03:45:37Z | |
| dc.date.available | 2026-07-07T03:45:37Z | |
| dc.description | We calculate the process- and polarization-dependent nonfactorizable terms $+AFw-widetilde{a}_{+AFw-lambda}$ of the B$+AFw-to$ J$/+AFw-Psi {+AFw-rm K^*}$ decay within the QCD-improved factorization approach. The longitudinal part $+AFw-widetilde{a}_{0}$ is infrared convergent and large enough to agree with recent experimental data, provided that the B-K$^*$ form factors $A_1(m^2_{+AFw-Psi})$ and $A_2(m^2_{+AFw-Psi})$ satisfy some constraints met by many (but not all) models. The transverse parts $+AFw-widetilde{a}_{+AFw-pm}$ on the other hand are infrared divergent, the procedure used to handle such divergence is discussed in relation with the B$+AFw-to$ J$/+AFw-Psi {+AFw-rm K}$ case in which the same problem arises. Our nonzero phases of the helicity amplitudes are consistent with experimental data recently measured for the first time by the BaBar collaboration. | |
| dc.description | 12 pages, no figures | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0110284 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0110284 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/40984 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | On the B $ +AFw-to J/+AFw-Psi K^* $ Decay | |
| dc.type | text |