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Cosmological bounds on neutrino statistics

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Cosmological bounds on neutrino statistics

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dc.contributor.author	Fernández de Salas, Pablo
dc.contributor.author	Gariazzo, Stefano
dc.contributor.author	Laveder, Marco
dc.contributor.author	Pastor Carpi, Sergio
dc.contributor.author	Pisanti, Ofelia
dc.contributor.author	Truong, Nhut
dc.date.accessioned	2018-06-22T13:22:25Z
dc.date.available	2019-03-29T05:45:05Z
dc.date.issued	2018
dc.identifier.citation	Fernández de Salas, Pablo Gariazzo, Stefano Laveder, Marco Pastor Carpi, Sergio Pisanti, Ofelia Truong, Nhut 2018 Cosmological bounds on neutrino statistics Journal Of Cosmology And Astroparticle Physics 03 050-1 050-17
dc.identifier.uri	http://hdl.handle.net/10550/66753
dc.description.abstract	We consider the phenomenological implications of the violation of the Pauli exclusion principle for neutrinos, focusing on cosmological observables such as the spectrum of Cosmic Microwave Background anisotropies, Baryon Acoustic Oscillations and the primordial abundances of light elements. Neutrinos that behave (at least partly) as bosonic particles have a modified equilibrium distribution function that implies a different influence on the evolution of the Universe that, in the case of massive neutrinos, can not be simply parametrized by a change in the effective number of neutrinos. Our results show that, despite the precision of the available cosmological data, only very weak bounds can be obtained on neutrino statistics, disfavouring a more bosonic behaviour at less than 2sigma.
dc.language.iso	eng
dc.relation.ispartof	Journal Of Cosmology And Astroparticle Physics, 2018, vol. 03, p. 050-1-050-17
dc.subject	Cosmologia
dc.subject	Partícules (Física nuclear)
dc.subject	Astrofísica
dc.title	Cosmological bounds on neutrino statistics
dc.type	journal article	es_ES
dc.date.updated	2018-06-22T13:22:25Z
dc.identifier.doi	10.1088/1475-7516/2018/03/050
dc.identifier.idgrec	126325
dc.embargo.terms	1 year
dc.rights.accessRights	open access	es_ES