Theoretical point of view on Cabibbo angle anomaly

Fuente: arXiv
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Main Author: Kitahara, Teppei
Format: Preprint
Published: 2024
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author Kitahara, Teppei
author_facet Kitahara, Teppei
contents We present the current situation of the determinations of the first-row CKM components and show the Cabibbo angle anomaly corresponding to a deficit in the first-row CKM unitarity condition at the $3σ$ level. In this contribution, we show two new physics interpretations: heavy vector-like quark models and a MeV scale sterile neutrino models. The super tau-charm facility will directly probe the other CKM unitarity conditions related to $V_{cd}$.
format Preprint
id arxiv_https___arxiv_org_abs_2407_00122
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Theoretical point of view on Cabibbo angle anomaly
Kitahara, Teppei
High Energy Physics - Phenomenology
High Energy Physics - Experiment
We present the current situation of the determinations of the first-row CKM components and show the Cabibbo angle anomaly corresponding to a deficit in the first-row CKM unitarity condition at the $3σ$ level. In this contribution, we show two new physics interpretations: heavy vector-like quark models and a MeV scale sterile neutrino models. The super tau-charm facility will directly probe the other CKM unitarity conditions related to $V_{cd}$.
title Theoretical point of view on Cabibbo angle anomaly
topic High Energy Physics - Phenomenology
High Energy Physics - Experiment
url https://arxiv.org/abs/2407.00122