Is there a non-Standard-Model contribution in non-leptonic b -> s decays?

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dc.creatorFeldmann, Thorsten
dc.creatorJung, Martin
dc.creatorMannel, Thomas
dc.date2008-03-26
dc.date2008-12-10
dc.date.accessioned2026-07-07T12:24:12Z
dc.date.available2026-07-07T12:24:12Z
dc.descriptionPrecision measurements of branching fractions and CP asymmetries in non-leptonic b -> s decays reveal certain "puzzles" when compared with Standard Model expectations based on a global fit of the CKM triangle and general theoretical expectations. Without reference to a particular model, we investigate to what extent the (small) discrepancies observed in (B -> J/psi K), (B -> phi K) and (B -> K pi) may constrain new physics in (b -> s q qbar) operators. In particular, we compare on a quantitative level the relative impact of different quark flavours q=c,s,u,d.
dc.description25 pages, 7 figures, some references added, brief discussion of B -> J/psi πincluded
dc.identifierhttps://arxiv.org/abs/0803.3729
dc.identifierhttp://arxiv.org/abs/0803.3729
dc.identifierJHEP 0808:066,2008
dc.identifierdoi:10.1088/1126-6708/2008/08/066
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/214246
dc.subjectHigh Energy Physics - Phenomenology
dc.titleIs there a non-Standard-Model contribution in non-leptonic b -> s decays?
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