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Do the Small Numbers in the Quark Mixing arise from New Physics?

Do the Small Numbers in the Quark Mixing arise from New Physics?

Authors :
Branco, G. C.
Bastos, José Filipe
Silva-Marcos, J. I.
Publication Year :
2022

Abstract

We put forward the conjecture that the small numbers in the $V_\text{CKM}$ matrix, are generated by physics beyond the Standard Model. We identify as small numbers $V_{ub}$ and the strength of CP violation, measured by $|\text{Im}Q|$, where $Q$ stands for a rephasing invariant quartet of $V_\text{CKM}$. We illustrate how the conjecture can be realised in the context of an extension of the Standard Model where an up-type vector-like quark is introduced leading to a realistic spectrum of quark masses and an effective $V_\text{CKM}$ in agreement with experiment.<br />Comment: 15 pages, 1 table

Details

Database :
arXiv
Publication Type :
Report
Accession number :
edsarx.2207.14235
Document Type :
Working Paper
Full Text :
https://doi.org/10.1140/epjc/s10052-023-11279-3