Searching For New Physics With B to K pi Decays

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dc.creatorCiuchini, M.
dc.creatorFranco, E.
dc.creatorMartinelli, G.
dc.creatorPierini, M.
dc.creatorSilvestrini, L.
dc.date2008-11-03
dc.date2009-03-27
dc.date.accessioned2026-07-07T13:00:04Z
dc.date.available2026-07-07T13:00:04Z
dc.descriptionWe propose a method to quantify the Standard Model uncertainty in B to K pi decays using the experimental data, assuming that power counting provides a reasonable estimate of the subleading terms in the 1/mb expansion. Using this method, we show that present B to K pi data are compatible with the Standard Model. We analyze the pattern of subleading terms required to reproduce the B to K pi data and argue that anomalously large subleading terms are not needed. Finally, we find that S(KS pi0) is fairly insensitive to hadronic uncertainties and obtain the Standard Model estimate S(KS pi0)=0.74 +- 0.04.
dc.description8 pages, 8 figures, 2 tables. v2:final version to appear in Phys. Lett. B
dc.identifierhttps://arxiv.org/abs/0811.0341
dc.identifierhttp://arxiv.org/abs/0811.0341
dc.identifierPhys.Lett.B674:197-203,2009
dc.identifierdoi:10.1016/j.physletb.2009.03.011
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/225756
dc.subjectHigh Energy Physics - Phenomenology
dc.titleSearching For New Physics With B to K pi Decays
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