Phase Transitions in the Early Universe with Negatively Induced Supergravity Cosmological Constant  

作　　者：EL-NABULSI Ahmad Rami 

机构地区：[1]Plasma Application Laboratory, Department of Nuclear and Energy Engineering and Faculty of Mechanical, Energy and Production Engineering, Cheju National University, Ara-dong 1, Jeju 690-756, South Korea

出　　处：《Chinese Physics Letters》2006年第5期1124-1127,共4页中国物理快报（英文版）

摘　　要：We consider that the observable cosmological constant is the sum of the vacuum （Avac） and the induced term （Aind - 3m^2/4） with m being the ultra-llght masses （≈ Hubble parameter） implemented in the theory from supergravities arguments and non-minimal coupling. In the absence of a scalar buildup of matter fields, we study its effects on spontaneous symmetry breaking with a Higgs potential and show how the presence of the ultra-light masses yields some important consequences for the early universe and new constraints on the Higgs and electroweak gauge bosons masses.We consider that the observable cosmological constant is the sum of the vacuum （Avac） and the induced term （Aind - 3m^2/4） with m being the ultra-llght masses （≈ Hubble parameter） implemented in the theory from supergravities arguments and non-minimal coupling. In the absence of a scalar buildup of matter fields, we study its effects on spontaneous symmetry breaking with a Higgs potential and show how the presence of the ultra-light masses yields some important consequences for the early universe and new constraints on the Higgs and electroweak gauge bosons masses.

关 键 词：SPONTANEOUS SYMMETRY-BREAKING MASSLESS PARTICLES CURVED SPACETIME GAUGE-THEORIES CURVATURE MODELS FIELD 

分 类 号：P1[天文地球—天文学]