One-loop considerations for coexisting vacua in the CP conserving 2HDM

Autor(es)

Cherchiglia, A. L. ; Nishi, C. C.

• Tipo de documento: Artigo Científico
• Fonte: Journal of High Energy Physics; v. N/A, n. 11, p. 35-pg., 2017-11-17.

Resumo

The Two-Higgs-Doublet model (2HDM) is a simple and viable extension of the Standard Model with a scalar potential complex enough that two minima may coexist. In this work we investigate if the procedure to identify our vacuum as the global minimum by tree-level formulas carries over to the one-loop corrected potential. In the CP conserving case, we identify two distinct types of coexisting minima - the regular ones (moderate tan beta) and the non-regular ones (small or large tan beta) - and conclude that the tree level expectation fails only for the non-regular type of coexisting minima. For the regular type, the sign of m(12)(2) already precisely indicates which minima is the global one, even at one-loop. (AU)

• Processo FAPESP: 14/19164-6 - Desafios para o século XXI em física e astrofísica de neutrinos
• Beneficiário: Orlando Luis Goulart Peres
• Modalidade de apoio: Auxílio à Pesquisa - Projetos Especiais
• Processo FAPESP: 13/22079-8 - Física de partículas e campos: modelo padrão e suas extensões
• Beneficiário: Adriano Antonio Natale
• Modalidade de apoio: Auxílio à Pesquisa - Temático