A new simple form of quark mixing matrix

Although different parametrizations of quark mixing matrix are mathematically equivalent, the consequences of experimental analysis may be distinct. Based on the triminimal expansion of Kobayashi–Maskawa matrix around the unit matrix, we propose a new simple parametrization. Compared with the Wolfen...

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Bibliographic Details
Published inPhysics letters. B Vol. 695; no. 1-4; pp. 194 - 198
Main Authors Qin, Nan, Ma, Bo-Qiang
Format Journal Article
LanguageEnglish
Published Kidlington Elsevier B.V 10.01.2011
Elsevier
Subjects
CP-violation phase
Elementary particles
Equivalence
Exact sciences and technology
Hunting
Nuclear physics
Numerical analysis
Parametrization
Physics
Quark mixing matrix
Quarks
The physics of elementary particles and fields
Unitarity boomerang
Parametrization
CP-violation phase
Quark mixing matrix
Unitarity boomerang
CP invariance
Kobayashi-Maskawa matrix
Mixing
Quarks
Parameterization
Unitarity
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Summary:Although different parametrizations of quark mixing matrix are mathematically equivalent, the consequences of experimental analysis may be distinct. Based on the triminimal expansion of Kobayashi–Maskawa matrix around the unit matrix, we propose a new simple parametrization. Compared with the Wolfenstein parametrization, we find that the new form is not only consistent with the original one in the hierarchical structure, but also more convenient for numerical analysis and measurement of the CP-violating phase. By discussing the relation between our new form and the unitarity boomerang, we point out that along with the unitarity boomerang, this new parametrization is useful in hunting for new physics.
Bibliography:ObjectType-Article-1
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ISSN:0370-2693
1873-2445
DOI:10.1016/j.physletb.2010.11.013