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THE α, β AND γ PARAMETRIZATIONS OF CP-VIOLATING CKM PHASE
https://doi.org/10.1142/S0217751X13500140Cited by:1 (Source: Crossref)
Abstract
The CKM matrix describing quark mixing with three generations can be parametrized by three mixing angles and one CP-violating phase. In most of the parametrizations, the CP-violating phase chosen is not a directly measurable quantity and is parametrization dependent. In this work, we propose to use experimentally measurable CP-violating quantities, α, β or γ in the unitarity triangle as the phase in the CKM matrix, and construct explicit α, β and γ parametrizations. Approximate Wolfenstein-like expressions are also suggested. Since β is most accurately measured among these three phase angles, we consider β parametrization as the best one to use.
PACS: 12.15.Ff, 14.60.-z, 14.60.Pq, 14.65.-q, 14.60.Lm
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