Weyl symmetry inspired inflation and dark matter

Yong Tang (School of Astronomy, Space Sciences, University of Chinese Academy of Sciences (UCAS), Beijing, China; National Astronomical Observatories, Chinese Academy of Sciences, Beijing, China; Department of Physics, University of Tokyo, Tokyo, Japan; School of Fundamental Physics and Mathematical Sciences, Hangzhou Institute for Advanced Study, UCAS, Hangzhou, China) ; Yue-Liang Wu (School of Fundamental Physics and Mathematical Sciences, Hangzhou Institute for Advanced Study, UCAS, Hangzhou, China; International Centre for Theoretical Physics Asia-Pacific, Beijing/Hangzhou, China; Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing, China; School of Physical Sciences, University of Chinese Academy of Sciences, Beijing, China)

Motivated by the Weyl scaling gauge symmetry, we present a theoretical framework to explain cosmic inflation and dark matter simultaneously. This symmetry has been resurrected in recent attempts to formulate the gauge theory of gravity. We show the inspired inflation model is well consistent with current observations and will be probed further by future experiments. Furthermore, we clarify and prove the stability of Weyl gauge boson in the general theory with multiple scalars. We show the massive Weyl gauge boson can be a dark matter candidate and give the correct relic abundance.

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          "country": "China", 
          "value": "National Astronomical Observatories, Chinese Academy of Sciences, Beijing, China"
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        {
          "country": "Japan", 
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          "country": "China", 
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        {
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Published on:
25 March 2020
Publisher:
Elsevier
Published in:
Physics Letters B , Volume 803 C (2020)

Article ID: 135320
DOI:
https://doi.org/10.1016/j.physletb.2020.135320
Copyrights:
The Author(s)
Licence:
CC-BY-3.0

Fulltext files: