Proceedings of the 2022 8th International Conference on Humanities and Social Science Research (ICHSSR 2022)

Dark Matter Production from Inflation under Chiral Symmetry

Authors
Zexi Liu*
School of Science, Nanjing University of Science and Technology, Nanjing, Jiangsu, 210094, China
*Corresponding author. E-mail: 9201160d0431@njust.edu.cn
Corresponding Author
Zexi Liu
Available Online 1 June 2022.
DOI
10.2991/assehr.k.220504.228How to use a DOI?
Keywords
Inflation; Cosmological Constant; Chiral Symmetry; Dark Matter
Abstract

Many conceptual problems with the standard Big Bang model led us to the inflationary cosmology. The standard model is a broadly accepted theory in particle physics, in which chiral symmetry is a significantly useful property. Though a cosmological constant is just a constant, a time-varying cosmological constant is necessary for some modified theories. The cosmological constant can be coupled to the fermions through the chiral anomaly, and the time dependence of the cosmological constant is transferred to the rate of change of the number density of left-handed and right-handed fermions. During inflation, the cosmological constant was much larger than the present, so fermions were produced in large numbers, and after calculation, these fermions could just provide all the dark matter in the universe today.

Copyright
© 2022 The Authors. Published by Atlantis Press SARL.
Open Access
This is an open access article distributed under the CC BY-NC 4.0 license.

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Volume Title
Proceedings of the 2022 8th International Conference on Humanities and Social Science Research (ICHSSR 2022)
Series
Advances in Social Science, Education and Humanities Research
Publication Date
1 June 2022
ISBN
10.2991/assehr.k.220504.228
ISSN
2352-5398
DOI
10.2991/assehr.k.220504.228How to use a DOI?
Copyright
© 2022 The Authors. Published by Atlantis Press SARL.
Open Access
This is an open access article distributed under the CC BY-NC 4.0 license.

Cite this article

TY  - CONF
AU  - Zexi Liu
PY  - 2022
DA  - 2022/06/01
TI  - Dark Matter Production from Inflation under Chiral Symmetry
BT  - Proceedings of the 2022 8th International Conference on Humanities and Social Science Research (ICHSSR 2022)
PB  - Atlantis Press
SP  - 1258
EP  - 1263
SN  - 2352-5398
UR  - https://doi.org/10.2991/assehr.k.220504.228
DO  - 10.2991/assehr.k.220504.228
ID  - Liu2022
ER  -