NEUTRINO COUPLING TO COSMOLOGICAL BACKGROUND: A REVIEW ON GRAVITATIONAL BARYO/LEPTOGENESIS

被引：68

作者：

Lambiase, Gaetano ^{[1
,2
]}

Mohanty, Subhendra ^{[3
]}

Prasanna, Aragam R. ^{[3
]}

机构：

[1] Univ Salerno, Dipartimento Fis ER Caianiello, I-84084 Fisciano, SA, Italy

[2] Ist Nazl Fis Nucl, Sez Napoli, Naples, Italy

[3] Phys Res Lab, Ahmadabad 380009, Gujarat, India

来源：

INTERNATIONAL JOURNAL OF MODERN PHYSICS D | 2013年 / 22卷 / 12期

关键词：

Baryo/leptogenesis; early universe; neutrino; QFT in curved spacetime; BIG-BANG NUCLEOSYNTHESIS; ANISOTROPY-PROBE OBSERVATIONS; SPIN-POLARIZED CYLINDER; EINSTEIN-CARTAN-THEORY; DARK-MATTER; MODIFIED GRAVITY; EXPANDING UNIVERSE; GENERAL-RELATIVITY; WMAP OBSERVATIONS; DEPENDENT FORCES;

D O I：

10.1142/S0218271813300309

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

In this paper, we review the theories of origin of matter-antimatter asymmetry in the universe. The general conditions for achieving baryogenesis and leptogenesis in a CPT conserving field theory have been laid down by Sakharov. In this review, we discuss scenarios where a background scalar or gravitational field spontaneously breaks the CPT symmetry and splits the energy levels between particles and antiparticles. Baryon or Lepton number violating processes in proceeding at thermal equilibrium in such backgrounds gives rise to Baryon or Lepton number asymmetry.

引用

页数：50

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