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

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

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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.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.rights.uri info:eu-repo/semantics/openAccess
dc.source 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.subject Física
dc.title Form factors for semileptonic B -> pi and D -> pi decays from the Omnes representation
dc.type info:eu-repo/semantics/article
dc.date.updated 2014-10-17T10:12:19Z
dc.identifier.doi http://dx.doi.org/10.1016/S0370-2693(01)00333-1
dc.identifier.idgrec 068601

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