CP-odd and CP-even Weak-Basis Invariants in the Presence of Vector-Like Quarks

Autor:	Albergaria, Francisco, Branco, G. C., Bastos, José Filipe, Silva-Marcos, J. I.
Rok vydání:	2022
Předmět:	High Energy Physics - Phenomenology
Druh dokumentu:	Working Paper
DOI:	10.1088/1361-6471/acc349
Popis:	We propose a minimal set of weak-basis invariants in an extension of the SM where one up-type isosinglet vector-like quark is introduced, which allows us to obtain all the physical content of the CKM matrix. We present CP-odd invariants of lower order in mass than the one in the SM, which may have important consequences for Baryogenesis. We study the extreme chiral limit, where the two lightest generations have vanishing mass, showing that in this extension, contrary to the SM, CP violation can be observed in collisions much above the electroweak scale. Comment: 19 pages
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2210.14248 Zobrazit plný text záznamu View this record from Arxiv