arXiv:2309.04783·v2·High Energy Physics — Phenomenology

$C P$ issues in the SM from a view point of spontaneous $C P$ violation

Abstract

The standard model (SM) has several issues related to the $C P$ violation which could give clues to search physics beyond the SM. They are a $C P$ phase in the CKM matrix, the strong $C P$ problem, $C P$ phases in the PMNS matrix and $C P$ asymmetry in lepton number violating processes related to baryon number asymmetry. We consider a model which could give a unified explanation for them in a framework of spontaneous $C P$ violation. It is an extension of the SM with vector-like fermions and singlet scalars. In this model, they are explained by a common complex phase caused in the spontaneous $C P$ violation. We present concrete examples for them and also discuss some relevant phenomenology.

Comments: 30 pages, 4 figures, reference added, typos corrected, version published in PRD

CP issues in the SM from a view point of spontaneous CP violation

Abstract

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$C P$ issues in the SM from a view point of spontaneous $C P$ violation

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