Dirac equation in a de Sitter expansion for massive neutrinos from modern Kaluza-Klein theory

被引：2

作者：

Alejandro Sanchez, Pablo ^{[1
,2
]}

Anabitarte, Mariano ^{[1
,2
]}

Bellini, Mauricio ^{[1
,2
]}

机构：

[1] Univ Nacl Mar del Plata, Dept Fis, Fac Ciencias Exactas & Nat, RA-7600 Mar Del Plata, Argentina

[2] Consejo Nacl Invest Cient & Tecn CONICET, Inst Invest Fis Mar del Plata IFIMAR, Mar Del Plata, Buenos Aires, Argentina

来源：

PHYSICS LETTERS B | 2012年 / 709卷 / 4-5期

关键词：

NONCOMPACT KK THEORY; SPACE-TIME; GRAVITY; SUPERSYMMETRY; CONSTRAINTS; DIMENSIONS; INFLATION; MASSES; FIELD;

D O I：

10.1016/j.physletb.2012.02.043

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Using the modern Kaluza-Klein theory of gravity (or the Induced Matter theory), we study the Dirac equation for massive neutrinos on a de Sitter background metric from a 5D Riemann-flat (and hence Ricci-flat) extended de Sitter metric, on which is defined the vacuum for test massless 1/2-spin neutral fields minimally coupled to gravity and free of any other interactions. We obtain that the effective 4D masses of the neutrinos can only take three possible values, which are related to the (static) foliation of the fifth and noncompact extra dimension. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：404 / 407

页数：4

共 23 条

[1] Noncompact KK theory of gravity: Stochastic treatment for a nonperturbative inflaton field in a de Sitter expansion [J].