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Active-active and active-sterile neutrino oscillation solutions to the atmospheric neutrino anomaly

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Active-active and active-sterile neutrino oscillation solutions to the atmospheric neutrino anomaly

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dc.contributor.author González García, Mª Concepción
dc.contributor.author Nunokawa, Hiroshi
dc.contributor.author Peres, O.L.G.
dc.contributor.author Furtado Valle, José Wagner
dc.date.accessioned 2015-10-22T12:07:56Z
dc.date.available 2015-10-22T12:07:56Z
dc.date.issued 1999
dc.identifier.citation González García, Mª Concepción Nunokawa, Hiroshi Peres, O.L.G. Furtado Valle, José Wagner 1999 Active-active and active-sterile neutrino oscillation solutions to the atmospheric neutrino anomaly Nuclear Physics B 543 1-2 3 19
dc.identifier.uri http://hdl.handle.net/10550/47875
dc.description.abstract We perform a fit to the full data set corresponding to 33.3 kt-yr of data of the Super-Kamiokande experiment as well as to all other experiments in order to compare the two most likely solutions to the atmospheric neutrino anomaly in terms of oscillations in the νμ→ντ and νμ→νs channels. Using state-of-the-art atmospheric neutrino fluxes we have determined the allowed regions of oscillation parameters for both channels. We find that the Δm2 values for the active-sterile oscillations (both for positive and negative Δm2) are higher than for the νμ→ντ case, and that the increased Super-Kamiokande sample slightly favours νμ→ντ oscillations over oscillations into a sterile species νs, νμ→νs, and disfavours νμ→νe. We also give the zenith angle distributions predicted for the best fit points in each of the possible oscillation channels. Finally we compare our determinations of the atmospheric neutrino oscillation parameters with the expected sensitivities of future long-baseline experiments K2K, MINOS, ICARUS, OPERA and NOE.
dc.language.iso eng
dc.relation.ispartof Nuclear Physics B, 1999, vol. 543, num. 1-2, p. 3-19
dc.subject Física
dc.title Active-active and active-sterile neutrino oscillation solutions to the atmospheric neutrino anomaly
dc.type journal article es_ES
dc.date.updated 2015-10-22T12:07:56Z
dc.identifier.doi 10.1016/S0550-3213(98)00834-7
dc.identifier.idgrec 073530
dc.rights.accessRights open access es_ES

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