https://doi.org/10.1140/epjc/s10052-023-11279-3
Regular Article - Theoretical Physics
Do the small numbers in the quark mixing arise from new physics?
Centro de Física Teórica de Partículas, CFTP, Departamento de Física, Instituto Superior Técnico, Universidade de Lisboa, Avenida Rovisco Pais nr. 1, 1049-001, Lisbon, Portugal
b
jose.bastos@tecnico.ulisboa.pt
Received:
17
August
2022
Accepted:
30
January
2023
Published online:
13
February
2023
We put forward the conjecture that the small numbers in the 
matrix, are generated by physics beyond the Standard Model. We identify as small numbers 
and the strength of CP violation, measured by 
, where Q stands for a rephasing invariant quartet of . 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 in agreement with experiment.
© The Author(s) 2023
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