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1861por King, S.F.“…We follow a minimalistic approach to neutrino masses, by introducing a single heavy singlet $N$ into the standard model (or supersymmetric standard model) with a heavy Majorana mass $M$, which couples as a single right-handed neutrino in a Dirac fashion to leptons, and induces a single light see-saw mass $m_{\nu}\sim 5\times 10^{-2} eV$, leaving two neutrinos massless. …”
Publicado 1998
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1862
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1863“…Heavy Majorana neutrino mass matrices leading to large neutrino mixing, are tabulated as an example. …”
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1864
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1865
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1866por Barbarino, G C, Bernardini, P, Bussino, S, Campana, D, De Cataldo, G, De Benedictis, L, De Vincenzi, M, Di Credico, A, Fusco, P, Giglietto, N, Grillo, A, Guarino, F, Gustavino, C, Lamanna, E, Mancarella, G, Margiotta, A, Martello, D, Mikheyev, S P, Mazziotta, M N, Osteria, G, Rubizzo, U, Scapparone, E, Spinelli, P, Spurio, M, Surdo, AEnlace del recurso
Publicado 1998
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1867
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1868por Ronga, F“…A measurement of the flux of neutrino-induced muons using the MACRO detector is presented. …”
Publicado 1999
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1869por Pilaftsis, Apostolos“…We review the scenario of baryogenesis through leptogenesis induced by the out-of-equilibrium decays of heavy neutrinos. We pay special attention to the resonant phenomenon of CP violation through mixing of two nearly degenerate heavy Majorana neutrinos and show how unitarity and CPT invariance is maintained within the resummation approach. …”
Publicado 1998
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1870
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1871
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1872“…A complete simulation of the SPS neutrino beam line at CERN showed significant variations on the intensity and composition of the neutrino beam when {\sl FLUKA} instead of the {\sl GEANT-FLUKA} package is used to simulate particle production in the Be target.…”
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1873“…Here, small Majorana neutrino masses are generated by breaking lepton number on distant branes.…”
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1874por Altarelli, Guido“…Limits on neutrino masses and number of flavours. Neutrinos as possible hot dark matter. …”
Publicado 1999
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1875“…An exploratory search for an anomalous energy deposition by neutrinos in a germanium crystal was performed in the CERN high energy neutrino beam. …”
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1876
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1877
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1878“…If neutrinos are to play a relevant cosmological role, they must be essentially degenerate with a mass matrix of the bimaximal mixing type. …”
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1879por López-Hernandez, L A“…Le génie civil du projet Neutrino - Gran Sasso est présenté. A partir de protons de 400 GeV/c provenant du Super Proton Synchrotron (SPS) un faisceau de neutrinos est produit et dirigé vers le laboratoire souterrain Gran Sasso, en Italie, à 732 km du CERN. …”
Publicado 1999
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1880“…We briefly review the recent activity on neutrino masses and mixings which was prompted by the confirmation of neutrino oscillations by the Superkamiokande experiment.…”
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