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A solution to B -> pi pi puzzle and B -> KK

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dc.contributor.authorBaek, Seungwon-
dc.date.accessioned2021-09-09T12:02:43Z-
dc.date.available2021-09-09T12:02:43Z-
dc.date.created2021-06-15-
dc.date.issued2008-01-17-
dc.identifier.issn0370-2693-
dc.identifier.urihttps://scholar.korea.ac.kr/handle/2021.sw.korea/124228-
dc.description.abstractThe large ratio of color-suppressed tree amplitude to color-allowed one in B -> pi pi decays is difficult to understand within the Standard Model, which is known as the "B -> pi pi puzzle". The two tree diagrams contain the up- and charm-quark component of penguin amplitude, P-uc, which cannot be separated by measuring B -> pi pi decays alone. We show that the measurements of the branching ratio and direct CP asymmetry of B+ -> K + (K-0) over bar decay enable one to disentangle the P-uc with two-fold ambiguity. One of the two degenerate solutions of the P,, can solve the B -> pi pi puzzle by giving C/T|0.3 which is consistent with the expectation in the Standard Model. We also show that the two solutions can be discriminated by the measurement of the indirect CP asymmetry of B-0 -> K-0(K-0) over bar. We point out that the corresponding puzzle in B -> pi K decays is not solved in this way. (C) 2007 Elsevier B.V. All rights reserved.-
dc.languageEnglish-
dc.language.isoen-
dc.publisherELSEVIER SCIENCE BV-
dc.subjectQCD FACTORIZATION-
dc.subjectB-MESONS-
dc.subjectDECAYS-
dc.subjectPSEUDOSCALARS-
dc.titleA solution to B -> pi pi puzzle and B -> KK-
dc.typeArticle-
dc.contributor.affiliatedAuthorBaek, Seungwon-
dc.identifier.doi10.1016/j.physletb.2007.11.029-
dc.identifier.scopusid2-s2.0-37449024505-
dc.identifier.wosid000252878000040-
dc.identifier.bibliographicCitationPHYSICS LETTERS B, v.659, no.1-2, pp.265 - 269-
dc.relation.isPartOfPHYSICS LETTERS B-
dc.citation.titlePHYSICS LETTERS B-
dc.citation.volume659-
dc.citation.number1-2-
dc.citation.startPage265-
dc.citation.endPage269-
dc.type.rimsART-
dc.type.docTypeArticle-
dc.description.journalClass1-
dc.description.journalRegisteredClassscie-
dc.description.journalRegisteredClassscopus-
dc.relation.journalResearchAreaAstronomy & Astrophysics-
dc.relation.journalResearchAreaPhysics-
dc.relation.journalWebOfScienceCategoryAstronomy & Astrophysics-
dc.relation.journalWebOfScienceCategoryPhysics, Nuclear-
dc.relation.journalWebOfScienceCategoryPhysics, Particles & Fields-
dc.subject.keywordPlusQCD FACTORIZATION-
dc.subject.keywordPlusB-MESONS-
dc.subject.keywordPlusDECAYS-
dc.subject.keywordPlusPSEUDOSCALARS-
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