SCET sum rules for B->P and B->V transition form factors

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dc.creatorDe Fazio, F.
dc.creatorFeldmann, Th.
dc.creatorHurth, T.
dc.date2007-11-26
dc.date2008-02-21
dc.date.accessioned2026-07-07T12:42:24Z
dc.date.available2026-07-07T12:42:24Z
dc.descriptionWe investigate sum rules for heavy-to-light transition form factors at large recoil derived from correlation functions with interpolating currents for light pseudoscalar or vector fields in soft-collinear effective theory (SCET). We consider both, factorizable and non-factorizable contributions at leading power in the Lambda/m_b expansion and to first order in the strong coupling constant alpha_s, neglecting contributions from 3-particle distribution amplitudes in the B-meson. We pay particular attention to various sources of parametric and systematic uncertainties. We also discuss certain form factor ratios where part of the hadronic uncertainties related to the B-meson distribution amplitude and to logarithmically enhanced alpha_s corrections cancel.
dc.description27 pages, 19 figures, minor corrections, matches journal version
dc.identifierhttps://arxiv.org/abs/0711.3999
dc.identifierhttp://arxiv.org/abs/0711.3999
dc.identifierJHEP 0802:031,2008
dc.identifierdoi:10.1088/1126-6708/2008/02/031
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/220067
dc.subjectHigh Energy Physics - Phenomenology
dc.titleSCET sum rules for B->P and B->V transition form factors
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