Neutrino masses,cosmological inflation and dark matter in a variant U(1)B-L model with type II seesa

• 作 者: J.G.Rodrigues A.C.O.Santos J.G.Ferreira Jr C.A.de S.Pires
• 机 构: Departamento de Física, Universidade Federal da Paraíba, Caixa Postal 5008, 58051-970, Jo?o Pessoa,
• 出 处: 中国物理C（英文版）
• 发表日期: 2021年2期
• 关键词: models beyond the standard model particle-theory and field-theory models of the

In this study,we implemented the type II seesaw mechanism into the framework of the U(1)B-L gauge model.To achieve this,we added a scalar triplet,A,to the canonical particle content of the U(1)B-L gauge model.By imposing that the U(1)B-L gauge symmetry be spontaneously broken at TeV scale,we show that the type II seesaw mechanism is realized at an intermediate energy scale,more precisely,at approximately 109 GeV.To pre-vent heavy right-handed neutrinos from disturbing the mechanism,we evoke a Z2 discrete symmetry.Interestingly,as a result,we have standard neutrinos with mass around eV scale and right-handed neutrinos with mass in TeV scale,with the lightest one fulfilling the condition of dark matter.We developed all of these in this study.In addition,we show that the neutral component of A may perform unproblematic non-minimal inflation with loss of unitarity.