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

NEUTRINO COUPLING TO COSMOLOGICAL BACKGROUND: A REVIEW ON GRAVITATIONAL BARYO/LEPTOGENESIS
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中微子与宇宙学背景的耦合:引力重子/细粒成因的回顾

DOI:
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发表时间:
2013
期刊:
影响因子:
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通讯作者:
A. Prasanna
A. Prasanna
中科院分区:
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文献类型:
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作者:
G. Lambiase;S. Mohanty;A. Prasanna

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本文综述了宇宙中物质-反物质不对称性的起源理论。在CPT守恒场论中实现重子发生和轻子发生的一般条件已由萨哈罗夫规定。在这篇评论中,我们讨论的情况下,背景标量或引力场自发地打破CPT对称性和分裂粒子和反粒子之间的能级。在这种背景下,在热平衡条件下进行的重子或轻子数破坏过程会引起重子或轻子数不对称。
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.
DOI: 10.1103/physrevlett.101.261104
发表时间: 2008-11
影响因子: 8.6
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发表时间: 2011-03-11
期刊: PHYSICAL REVIEW D
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