A General Lower Bound for Radiative B Decay

dc.creatorAtwood, David
dc.creatorBurgess, C. P.
dc.creatorSoni, A.
dc.date1992-05-14
dc.date1992-08-07
dc.date.accessioned2026-07-07T08:59:45Z
dc.date.available2026-07-07T08:59:45Z
dc.descriptionIn a wide class of models -- including the standard model -- flavor-changing neutral currents are suppressed by an approximate chiral symmetry of the low-energy lagrangian. This symmetry allows the derivation of general relations among low-energy flavour-changing processes. We derive one such: the relative sizes of the decay rates b --> s gamma, b --> d gamma and s --> d gamma. Together with a unitarity-related lower bound on the rate for the strangeness-changing hyperon decay Omega^- --> Xi^- γwe obtain a reasonably model-independent lower bound for the inclusive b --> s gamma rate.
dc.description(Cosmetic changes: (1) an expanded discussion of the logarithmic GIM suppression, (2) typos corrected and (3) updated references.) 10 pages McGill-92/18, BNL-47586, hep-ph/9205219
dc.identifierhttps://arxiv.org/abs/hep-ph/9205219
dc.identifierhttp://arxiv.org/abs/hep-ph/9205219
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/147824
dc.subjectHigh Energy Physics - Phenomenology
dc.titleA General Lower Bound for Radiative B Decay
dc.typetext

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