Constraints on Axion-Lepton coupling from Big Bang Nucleosynthesis

dc.contributor.author	GHOSH, DIPTIMOY	en_US
dc.contributor.author	SACHDEVA, DIVYA	en_US
dc.date.accessioned	2020-12-04T11:39:56Z
dc.date.available	2020-12-04T11:39:56Z
dc.date.issued	2020-10	en_US
dc.identifier.citation	Journal of Cosmology and Astroparticle Physics, 2020.	en_US
dc.identifier.issn	1475-7516	en_US
dc.identifier.uri	http://dr.iiserpune.ac.in:8080/xmlui/handle/123456789/5398
dc.identifier.uri	https://doi.org/10.1088/1475-7516/2020/10/060	en_US
dc.description.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.	en_US
dc.language.iso	en	en_US
dc.publisher	IOP Publishing	en_US
dc.subject	Axions	en_US
dc.subject	Big bang nucleosynthesis	en_US
dc.subject	2020	en_US
dc.subject	2020-DEC-WEEK1	en_US
dc.subject	TOC-DEC-2020	en_US
dc.title	Constraints on Axion-Lepton coupling from Big Bang Nucleosynthesis	en_US
dc.type	Article	en_US
dc.contributor.department	Dept. of Physics	en_US
dc.identifier.sourcetitle	Journal of Cosmology and Astroparticle Physics	en_US
dc.publication.originofpublisher	Foreign	en_US