Democratic three Higgs-doublet models: the custodial limit and wrong-sign Yukawa

Autor:	Das, Dipankar, Levy, Miguel, Pal, Palash B., Prasad, Anugrah M., Saha, Ipsita, Srivastava, Ayushi
Rok vydání:	2022
Předmět:	High Energy Physics - Phenomenology High Energy Physics - Experiment
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevD.107.055035
Popis:	We study two novel aspects of democratic 3HDMs -- the custodial limit and the possibility of wrong-sign Yukawa couplings. In the custodial limit, the democratic 3HDMs can easily negotiate the constraints from the electroweak $T$-parameter. We also uncover the possibility of having wrong-sign Yukawa couplings in democratic 3HDMs, as in the case of 2HDMs. We show that a democratic 3HDM encompasses all the wrong-sign possibilities entertained by 2HDMs, and has considerably more leeway in the wrong-sign limit as compared to the 2HDM case. Our study underscores the importance of reporting analysis in the kappa-formalism without any implicit assumptions on the signs of the kappas. Comment: 22 pages, 3 captioned figures. Version accepted for publication in Phys. Rev. D
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2301.00231 Zobrazit plný text záznamu View this record from Arxiv