Probing 4 X 4 quark mixing matrix
High Energy Physics - Phenomenology
2024-08-15 v1
Abstract
Without adhering to any specific model, we have presented 4 X 4 quark mixing matrix as an extension of the 3 X 3 PDG parametrization of the CKM matrix. Using unitarity constraints as well as the hierarchy among the elements of the 3 X 3 CKM matrix, we have found the hierarchy among the 4th row and 4th column elements of the 4 X 4 quark mixing matrix. Further, for the fourth generation case, we have explicitly found the 9 independent rephasing invariant parameters J_4X4. Also, using phenomenological estimates of the 4th row and 4th column elements, we have numerically evaluated these 9 parameters.
Cite
@article{arxiv.2408.07407,
title = {Probing 4 X 4 quark mixing matrix},
author = {Gurjit Kaur and Gulsheen Ahuja and Dheeraj Shukla and Manmohan Gupta},
journal= {arXiv preprint arXiv:2408.07407},
year = {2024}
}
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16 pages