Enhanced electroweak penguin amplitude in B-->VV decays

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dc.creatorBeneke, M.
dc.creatorRohrer, J.
dc.creatorYang, D.
dc.date2005-12-20
dc.date.accessioned2026-07-07T10:44:33Z
dc.date.available2026-07-07T10:44:33Z
dc.descriptionWe discuss a novel electromagnetic penguin contribution to the transverse helicity amplitudes in B decays to two vector mesons, which is enhanced by two powers of mB/Lambda relative to the standard penguin amplitudes. This leads to unique polarization signatures in penguin-dominated decay modes such as B-->rho K* similar to polarization effects in the radiative decay B-->K*gamma, and offers new opportunities to probe the magnitude and chirality of flavour-changing neutral current couplings to photons.
dc.description4 pages, 1 figure
dc.identifierhttps://arxiv.org/abs/hep-ph/0512258
dc.identifierhttp://arxiv.org/abs/hep-ph/0512258
dc.identifierPhys.Rev.Lett.96:141801,2006
dc.identifierdoi:10.1103/PhysRevLett.96.141801
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/182629
dc.subjectHigh Energy Physics - Phenomenology
dc.titleEnhanced electroweak penguin amplitude in B-->VV decays
dc.typetext

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