Polarization Study in B Decays to Vector Final States
| dc.creator | Lu, Cai-Dian | |
| dc.date | 2006-06-08 | |
| dc.date.accessioned | 2026-07-07T07:13:25Z | |
| dc.date.available | 2026-07-07T07:13:25Z | |
| dc.description | The small longitudinal polarization fractions (50%) of $B \to ϕK^*$ measured by B factories contradict with the naive theoretical counting rules. We review the current theoretical status of the $B\to VV$ decay studies and calculate many of them in the perturbative QCD factorization approach based on $k_T$ factorization. We find that the penguin annihilation and non-factorizable emission diagrams can enhance the transverse polarization fractions. The PQCD results agree with experiments for the measured $B\to ϕK^*$, $B\to ρK^*$ and $B\to ρρ$ channels, and we also predict new results (some different from other approaches) for those not yet measured channels. | |
| dc.description | 4 pages; Talk presented at the 41th Rencontres de Moriond on QCD and High Energy Hadronic Interactions, La Thuile, Italy, March 18-25, 2006 | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0606094 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0606094 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/112453 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Polarization Study in B Decays to Vector Final States | |
| dc.type | text |