Effective Theory Description of Weak Annihilation in B-> Xu l nu Decays

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dc.creatorSanz-Cillero, J. J.
dc.date2006-09-01
dc.date.accessioned2026-07-07T10:41:59Z
dc.date.available2026-07-07T10:41:59Z
dc.descriptionThe semileptonic B-> Xu l nu decays allow a pretty clean determination of the CKM matrix element |Vub|. Nevertheless, the presence of weak-annihilation effects near the end-point of the q2 spectrum introduces uncertainties in the inclusive calculation, requiring the use of non-perturbative techniques like heavy meson chiral perturbation theory and large NC limit.
dc.description3 pages, 2 figures. To appear in the proceedings of the 7th International Conference on Hyperons, Charm And Beauty Hadrons (BEACH 2006), 2nd-8th July 2006, Lancaster, England
dc.identifierhttps://arxiv.org/abs/hep-ph/0609002
dc.identifierhttp://arxiv.org/abs/hep-ph/0609002
dc.identifierNucl.Phys.Proc.Suppl.167:124-126,2007
dc.identifierdoi:10.1016/j.nuclphysbps.2006.12.095
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/181800
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectHigh Energy Physics - Experiment
dc.subjectHigh Energy Physics - Lattice
dc.titleEffective Theory Description of Weak Annihilation in B-> Xu l nu Decays
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