Cosmological bounds on neutrino statistics
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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.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.rights.uri info:eu-repo/semantics/openAccess
dc.source 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.subject Cosmologia
dc.subject Partícules (Física nuclear)
dc.subject Astrofísica
dc.title Cosmological bounds on neutrino statistics
dc.type info:eu-repo/semantics/article
dc.date.updated 2018-06-22T13:22:25Z
dc.identifier.doi https://doi.org/10.1088/1475-7516/2018/03/050
dc.identifier.idgrec 126325
dc.embargo.terms 1 year

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