|Vub| from exclusive semileptonic B→π decays
Flynn, Jonathan M. and Nieves, Juan (2007) |Vub| from exclusive semileptonic B→π decays. Physics Letters B, 649, (4), 269-274. (doi:10.1016/j.physletb.2007.04.028).
Full text not available from this repository.
We use Omnès representations of the form factors f+ and f0 for exclusive semileptonic B→π decays, paying special attention to the treatment of the B* pole and its effect on f+. We apply them to combine experimental partial branching fraction information with theoretical calculations of both form factors to extract |Vub|. The precision we achieve is competitive with the inclusive determination and we do not find a significant discrepancy between our result, |Vub|=(3.90±0.32±0.18)×10−3, and the inclusive world average value, (4.45±0.20±0.26)×10−3 [Heavy Flavor Averaging Group (HFAG), hep-ex/0603003].
|Subjects:||Q Science > QC Physics|
|Divisions:||University Structure - Pre August 2011 > School of Physics and Astronomy
|Date Deposited:||14 Aug 2008|
|Last Modified:||02 Mar 2012 11:50|
|Contributors:||Flynn, Jonathan M. (Author)
Nieves, Juan (Author)
|Date:||7 June 2007|
|RDF:||RDF+N-Triples, RDF+N3, RDF+XML, Browse.|
Actions (login required)