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A lattice study of the form factors A(0) and A(3) in the decay (B)over-bar(0)->rho(+)l(-)(nu)over-bar(l)

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dc.contributor.author	Flynn, Jonathan M.
dc.contributor.author	Nieves Pamplona, Juan Miguel
dc.date.accessioned	2014-10-16T12:02:14Z
dc.date.available	2014-10-16T12:02:14Z
dc.date.issued	1996
dc.identifier.citation	Flynn, Jonathan M. Nieves Pamplona, Juan Miguel 1996 A lattice study of the form factors A(0) and A(3) in the decay (B)over-bar(0)->rho(+)l(-)(nu)over-bar(l) Nuclear Physics B 476 1-2 313 326
dc.identifier.uri	http://hdl.handle.net/10550/39217
dc.description.abstract	We report on a lattice calculation of the form factors A(0) and A(3) for the pseudoscalar to vector meson semileptonic decay (B) over bar(0) --> rho(+)l(-)<(nu)over bar>(1). We find that resonant (or pole-type) contributions alone are unable to describe these two form factors simultaneously. For the quantity A(0)(q(2) = 0), which is important phenomenologically for the determination of \V-ub\, we extract a range of values, A(0)(q(2) = 0) = (0.16-0.35)(-6)(+9), where the range is due to systematic uncertainty and the quoted error is statistical. We have also determined A(2)(q(2) = 0) = 0.28(-6-5)(+9+4).
dc.language.iso	eng
dc.relation.ispartof	Nuclear Physics B, 1996, vol. 476, num. 1-2, p. 313-326
dc.subject	Física
dc.title	A lattice study of the form factors A(0) and A(3) in the decay (B)over-bar(0)->rho(+)l(-)(nu)over-bar(l)
dc.type	journal article	es_ES
dc.date.updated	2014-10-16T12:02:14Z
dc.identifier.doi	10.1016/0550-3213(96)00307-0
dc.identifier.idgrec	068616
dc.rights.accessRights	open access	es_ES