TY - JOUR
T1 - A new simple form of quark mixing matrix
AU - Qin, Nan
AU - Ma, Bo Qiang
N1 - Funding Information:
This work is partially supported by National Natural Science Foundation of China (Nos. 10721063 , 10975003 , 11035003 ) and by the Key Grant Project of Chinese Ministry of Education (No. 305001 ).
PY - 2011/1/10
Y1 - 2011/1/10
N2 - 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.
AB - 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.
KW - CP-violation phase
KW - Parametrization
KW - Quark mixing matrix
KW - Unitarity boomerang
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U2 - 10.1016/j.physletb.2010.11.013
DO - 10.1016/j.physletb.2010.11.013
M3 - Article
AN - SCOPUS:78650307289
SN - 0370-2693
VL - 695
SP - 194
EP - 198
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
IS - 1-4
ER -