NAGIOS: RODERIC FUNCIONANDO

Form factors for semileptonic B -> pi and D -> pi decays from the Omnes representation

Repositori DSpace/Manakin

dc.contributor.author	Flynn, Jonathan M.
dc.contributor.author	Nieves Pamplona, Juan Miguel
dc.date.accessioned	2014-10-17T10:12:19Z
dc.date.available	2014-10-17T10:12:19Z
dc.date.issued	2001
dc.identifier.citation	Flynn, Jonathan M. Nieves Pamplona, Juan Miguel 2001 Form factors for semileptonic B -> pi and D -> pi decays from the Omnes representation Physics Letters B 505 1-4 82 88
dc.identifier.uri	http://hdl.handle.net/10550/39237
dc.description.abstract	We use the Omnes representation to obtain the q(2) dependence of the form factors f(+.0)(q(2)) for semileptonic H --> pi decays from elastic pi H --> pi H scattering amplitudes, where H denotes a B or D meson. The amplitudes used satisfy elastic unitarity and are obtained from two-particle irreducible amplitudes calculated in tree-level heavy meson chiral perturbation theory (HMChPT). The q(2)-dependences for the form factors agree with lattice QCD results when the HMChPT coupling constant, g, takes values smaller than 0.32, and confirm the milder dependence of f(0) on q(2) found in sumrule calculations.
dc.language.iso	eng
dc.relation.ispartof	Physics Letters B, 2001, vol. 505, num. 1-4, p. 82-88
dc.subject	Física
dc.title	Form factors for semileptonic B -> pi and D -> pi decays from the Omnes representation
dc.type	journal article	es_ES
dc.date.updated	2014-10-17T10:12:19Z
dc.identifier.doi	10.1016/S0370-2693(01)00333-1
dc.identifier.idgrec	068601
dc.rights.accessRights	open access	es_ES