Improved Measurement of the Cabibbo-Kobayashi-Maskawa AngleαUsingB0(B¯)→ρ+ρ−Decays
نویسندگان
چکیده
منابع مشابه
Renormalization of the Cabibbo-Kobayashi-Maskawa Matrix
Using the on-shell scheme and the general linear Rξ gauge we have calculated the one-loop amplitude W + → uI d̄j . In agreement with previous work we have shown that the Cabibbo-Kobayashi-Maskawa (CKM) matrix ought to be renormalized. We show how to renormalize the CKM matrix and, at the same time, obtain a gauge independent W decay amplitude. PACS number(s): 11.10.Gh, 12.15.-y, 12.15.Ff, 12.15....
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A small upper-bound is obtained for the CP phase δ in a CKM matrix, | sin δ| < 0.44 based on CP independent data on |Vub/Vcb| alone. Potential inconsistencies with the CKM model in existing data which need a theory beyond the standard model to overcome emerge in the analysis using this CKM matrix. In addition, all CP asymmetry measurables for the Bd− B̄d system are expressed solely by the CP pha...
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ژورنال
عنوان ژورنال: Physical Review Letters
سال: 2005
ISSN: 0031-9007,1079-7114
DOI: 10.1103/physrevlett.95.041805