Sterile Neutrino and Accelerating Universe

dc.creatorHung, P. Q.
dc.date2000-10-12
dc.date.accessioned2026-07-07T03:42:57Z
dc.date.available2026-07-07T03:42:57Z
dc.descriptionIf all three neutrino oscillation data were to be confirmed in the near future, it is probable that one might need a sterile neutrino, in addition to the three active ones. This sterile neutrino, nu_S, would be very light with mass m_{nu_S} less than or equal to 1 eV or even with m_{ν_S} approximately 10^{-3} eV according to some scenarios. Why would it be so light? On another front, recent cosmological observations and analyses appear to indicate that the present universe is flat and accelerating, and that the present energy density is dominated by a ``dark variety'', with rho_V approximately (10^{-3}eV)^4. Is it a constant? Is there a link between these apparently unrelated phenomena?
dc.description11 pages, REVTEX
dc.identifierhttps://arxiv.org/abs/hep-ph/0010126
dc.identifierhttp://arxiv.org/abs/hep-ph/0010126
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/40056
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectAstrophysics
dc.titleSterile Neutrino and Accelerating Universe
dc.typetext

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