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2024 , Vol. 2024 >Issue 3: 1 - 11

DOI: https://doi.org/10.3969/j.issn.1000-5641.2024.03.001

相对论与引力场

Dirac和Majorana费米子在空间平坦FRW时空背景下挠率场中的散射

  • 林威 ,
  • 薛迅
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  • 1. 华东师范大学 物理与电子科学学院, 上海　200241
    2. 华东师范大学重庆研究院, 重庆　401120
    3. 新疆大学 理论物理中心, 乌鲁木齐　830046

收稿日期: 2023-05-03

  网络出版日期: 2024-05-25

基金资助

国家自然科学基金(11775080,11865016); 重庆市自然科学基金(CSTB2022NSCQ-MSX0351)

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Dirac and Majorana neutrino scattering by cosmic torsion in spatial-flat FRW spacetime background

  • Wei LIN ,
  • Xun XUE
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  • 1. School of Physics and Electronic Science, East China Normal University, Shanghai　200241, China
    2. Chongqing Institute of East China Normal University, Chongqing　401120, China
    3. Center for Theoretical Physics, Xinjiang University, Urumqi　830046, China

Received date: 2023-05-03

  Online published: 2024-05-25

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摘要

讨论了在空间平坦FRW (Friedmann-Robertson-Walker)时空背景下, 通过有质量宇宙学中微子能量分布的移动检验由大尺度Lorentz破缺产生的宇宙学挠率存在的可能性. 在空间平坦FRW时空背景下, 有质量的宇宙学中, 微子在宇宙学挠率场中的散射会导致其末态能量分布的峰值位置相比于无挠情况时有一个$m^2/E^2$量级的移动; 并且, 在非最小矢量挠率耦合的情况下, 对于Dirac中微子和Majoran中微子移动的数值由于矢量挠率的影响而不同.

关键词： 宇宙学挠率检验; 中微子; 膨胀宇宙

本文引用格式

林威 , 薛迅 . Dirac和Majorana费米子在空间平坦FRW时空背景下挠率场中的散射[J]. 华东师范大学学报（自然科学版）, 2024 , 2024(3) : 1 -11 . DOI: 10.3969/j.issn.1000-5641.2024.03.001

Abstract

The possibility of detecting cosmic torsion originated from large scale Lorentz violation of cosmology at cosmic scale by the shift of energy distribution for massive cosmic neutrinos in spatial-flat FRW (Friedmann-Robertson-Walker) spacetime background is discussed. Massive cosmic neutrino scattering owing to cosmic torsion leads to a shift in the peak position of their final state energy distribution at the order of $m^2/E^2$. Moreover, the Dirac and Majorana neutrino shift values differ by the vector part of the torsion in the non-minimal vector torsion coupling case.

Key words： cosmic torsion detection; neutrino; expanding universe

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