|Vub| from exclusive semileptonic B--> rho decays
Flynn, Jonathan M., Nakagawa, Yoshiyuki, Nieves, Juan and Toki, Hiroshi (2008) |Vub| from exclusive semileptonic B--> rho decays. Physics Letters B, 675, 326-331. (doi:10.1016/j.physletb.2009.04.037).
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Description/Abstract
We use Omnes representations of the form factors V, A_1 and A_2 for exclusive semileptonic B--> rho decays, and apply them to combine experimental partial branching fraction information with theoretical calculations of the three form
factors to extract |Vub|.
We find a slightly lower result, |Vub|=(2.8 +- 0.2)x
10^{-3}, than the values extracted from exclusive semileptonic B-->pi decays and using all other inputs in CKM fits. The disagreement is greater when we compare to the result extracted from inclusive B -> X_u l nu decays
| Item Type: | Article |
|---|---|
| Related URLs: | |
| Keywords: | high energy physics, phenomenology |
| Subjects: | Q Science > QC Physics |
| Divisions: | University Structure - Pre August 2011 > School of Physics and Astronomy > Southampton High Energy Physics |
| Item ID: | 144007 |
| Date Deposited: | 14 Apr 2010 13:59 |
| Last Modified: | 02 Mar 2012 12:15 |
| Contributors: | Flynn, Jonathan M. (Author) Nakagawa, Yoshiyuki (Author) Nieves, Juan (Author) Toki, Hiroshi (Author) |
| Date: | 15 December 2008 |
| Status: | Published |
| URI: | http://eprints.soton.ac.uk/id/eprint/144007 |
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