|Vub| from exclusive semileptonic B to pi decays revisited
| dc.creator | Flynn, Jonathan M | |
| dc.creator | Nieves, Juan | |
| dc.date | 2007-05-24 | |
| dc.date | 2007-09-04 | |
| dc.date.accessioned | 2026-07-07T10:55:48Z | |
| dc.date.available | 2026-07-07T10:55:48Z | |
| dc.description | We update the extraction of |Vub| from exclusive semileptonic B to pi decays, combining experimental partial branching fraction information with theoretical form factor calculations, using the recently revised HPQCD results for the form factors f_+ and f_0. We use Omnes representations to provide the required parametrisations of the form factors. The extracted value is 10^3 |Vub| = 3.47+/-0.29+/-0.03, in striking agreement with |Vub| extracted using all other inputs in CKM fits and showing some disagreement with |Vub| extracted from inclusive semileptonic B to pi decays. | |
| dc.description | 5 pages, 1 figure. Version accepted for publication | |
| dc.identifier | https://arxiv.org/abs/0705.3553 | |
| dc.identifier | http://arxiv.org/abs/0705.3553 | |
| dc.identifier | Phys.Rev.D76:031302,2007 | |
| dc.identifier | doi:10.1103/PhysRevD.76.031302 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/186197 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | |Vub| from exclusive semileptonic B to pi decays revisited | |
| dc.type | text |