NAGIOS: RODERIC FUNCIONANDO

Vertical bar V-ub vertical bar from exclusive semileptonic B ->pi decays

Repositori DSpace/Manakin

dc.contributor.author	Flynn, Jonathan M.
dc.contributor.author	Nieves Pamplona, Juan Miguel
dc.date.accessioned	2014-10-22T10:01:00Z
dc.date.available	2014-10-22T10:01:00Z
dc.date.issued	2007
dc.identifier.citation	Flynn, Jonathan M. Nieves Pamplona, Juan Miguel 2007 Vertical bar V-ub vertical bar from exclusive semileptonic B ->pi decays Physics Letters B 649 4 269 274
dc.identifier.uri	http://hdl.handle.net/10550/39275
dc.description.abstract	We use Omnes representations of the form factors f(+) and f(0) for exclusive semileptonic B -> pi 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 vertical bar V-ub vertical bar. The precision we achieve is competitive with the inclusive determination and we do not find a significant discrepancy between our result. vertical bar V-ub vertical bar (3.90 +/- 0.32 +/- 0.18) x 10(-3), and the inclusive world average value, (4.45 +/- 0.20 +/- 0.26) x 10(-3).
dc.language.iso	eng
dc.relation.ispartof	Physics Letters B, 2007, vol. 649, num. 4, p. 269-274
dc.subject	Física
dc.title	Vertical bar V-ub vertical bar from exclusive semileptonic B ->pi decays
dc.type	journal article	es_ES
dc.date.updated	2014-10-22T10:01:00Z
dc.identifier.doi	10.1016/j.physletb.2007.04.028
dc.identifier.idgrec	068571
dc.rights.accessRights	open access	es_ES