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http://dr.iiserpune.ac.in:8080/xmlui/handle/123456789/5398| Title: | Constraints on Axion-Lepton coupling from Big Bang Nucleosynthesis |
| Authors: | GHOSH, DIPTIMOY SACHDEVA, DIVYA Dept. of Physics |
| Keywords: | Axions Big bang nucleosynthesis 2020 2020-DEC-WEEK1 TOC-DEC-2020 |
| Issue Date: | Oct-2020 |
| Publisher: | IOP Publishing |
| Citation: | Journal of Cosmology and Astroparticle Physics, 2020. |
| Abstract: | In this article, we study the implications of the coupling between Axion-Like-Particles (ALPs) and Leptons to cosmology in particular, the Big Bang Nucleosynthesis (BBN) . We show that the BBN, through the constraint on the effective number of relativistic neutrino species, provides the most stringent bound on the ALP-electron interaction strength for the mass of axion between 20 keV and 1 MeV . For other values of the mass, the BBN bound complements the stellar-evolution and laboratory bounds. |
| URI: | http://dr.iiserpune.ac.in:8080/xmlui/handle/123456789/5398 https://doi.org/10.1088/1475-7516/2020/10/060 |
| ISSN: | 1475-7516 |
| Appears in Collections: | JOURNAL ARTICLES |
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