Possibility of Large EW Penguin contribution

Simple item page
dc.creatorMishima, Satoshi
dc.creatorYoshikawa, Tadashi
dc.date2005-03-10
dc.date2005-03-11
dc.date.accessioned2026-07-07T03:54:29Z
dc.date.available2026-07-07T03:54:29Z
dc.descriptionWe discuss a possibility of large electroweak(EW) penguin contribution in B-->K pi and pi pi. The recent experimental data may be still suggesting that there are some discrepancies between the data and theoretical estimations. In B --> K pi decays, to explain several theoretical relations among the branching ratios, a slightly large electroweak penguin contribution and large strong phase differences or quite large color suppressed tree contribution seem to be needed. The contributions should appear also in B --> pi pi. We show, as an example, a solution to solve the discrepancies in both B --> K pi and B --> pi pi. It may be suggesting to need the large electroweak penguin contribution with new weak phases and some SU(3) breaking effects by new physics in both QCD and electroweak penguin type processes.
dc.description8 pages, 2 figures, Talk presented at International Conference on Flaver Physics and CP violation (FPCP2004), Daegu Korea, Oct. 4-9, 2004 and YITP workshop on CP Violation and Matter and Anti-Matter Asymmetry, Kyoto, Japan, Jan. 12-14, 2005
dc.identifierhttps://arxiv.org/abs/hep-ph/0503091
dc.identifierhttp://arxiv.org/abs/hep-ph/0503091
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/44257
dc.subjectHigh Energy Physics - Phenomenology
dc.titlePossibility of Large EW Penguin contribution
dc.typetext

Files

Collections

arXiv