NAGIOS: RODERIC FUNCIONANDO

Unstable massive tau neutrinos and primordial nucleosynthesis

Repositori DSpace/Manakin

IMPORTANT: Aquest repositori està en una versió antiga des del 3/12/2023. La nova instal.lació está en https://roderic.uv.es/

Unstable massive tau neutrinos and primordial nucleosynthesis

Mostra el registre parcial de l'element

dc.contributor.author Dolgov, Alexander D.
dc.contributor.author Hansen, Steen H.
dc.contributor.author Pastor Carpi, Sergio
dc.contributor.author Semikoz, Victor B.
dc.date.accessioned 2015-10-27T08:33:57Z
dc.date.available 2015-10-27T08:33:57Z
dc.date.issued 1999
dc.identifier.citation Dolgov, Alexander D. Hansen, Steen H. Pastor Carpi, Sergio Semikoz, Victor B. 1999 Unstable massive tau neutrinos and primordial nucleosynthesis Nuclear Physics B 548 1-3 385 407
dc.identifier.uri http://hdl.handle.net/10550/47915
dc.description.abstract The impact of unstable Majorana tau neutrinos on primordial nucleosynthesis is considered. The mass and lifetime of nu_tau are taken in the intervals 0.1-20 MeV and 0.001-400 sec respectively. The studied decay modes are nu_tau -> nu_mu + phi and nu_tau -> nu_e + phi, where phi is a massless (or light) scalar. Integro-differential kinetic equations are solved numerically without any simplifying assumptions. Our results deviate rather strongly from earlier calculations. Depending on mass, lifetime, and decay channels of the nu_tau, the number of effective neutrino species (found from He4), in addition to the 3 standard ones, varies from -2 to +2.5. The abundances of H2 and Li7 are also calculated.
dc.language.iso eng
dc.relation.ispartof Nuclear Physics B, 1999, vol. 548, num. 1-3, p. 385-407
dc.subject Física
dc.title Unstable massive tau neutrinos and primordial nucleosynthesis
dc.type journal article es_ES
dc.date.updated 2015-10-27T08:33:57Z
dc.identifier.doi 10.1016/S0550-3213(99)00127-3
dc.identifier.idgrec 107752
dc.rights.accessRights open access es_ES

Visualització       (434.7Kb)

Aquest element apareix en la col·lecció o col·leccions següent(s)

Mostra el registre parcial de l'element

Cerca a RODERIC

Cerca avançada

Visualitza

Estadístiques