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Can one distinguish T-neutrinos from antineutrinos in neutral-current pion production processes?

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Can one distinguish T-neutrinos from antineutrinos in neutral-current pion production processes?

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dc.contributor.author Hernández Gajate, Eliecer
dc.contributor.author Nieves Pamplona, Juan Miguel
dc.contributor.author Valverde Hermosilla, Manuel
dc.date.accessioned 2014-10-22T11:07:04Z
dc.date.available 2014-10-22T11:07:04Z
dc.date.issued 2007
dc.identifier.citation Hernández Gajate, Eliecer Nieves Pamplona, Juan Miguel Valverde Hermosilla, Manuel 2007 Can one distinguish T-neutrinos from antineutrinos in neutral-current pion production processes? Physics Letters B 647 5-6 452 459
dc.identifier.uri http://hdl.handle.net/10550/39300
dc.description.abstract A potential way to distinguish tau-neutrinos from antineutrinos, below the tau-production threshold, but above the pion production one, is presented. It is based on the different behavior of the neutral-current pion production off the nucleon, depending on whether it is induced by neutrinos or antineutrinos. This procedure for distinguishing tau-neutrinos from antineutrinos neither relies on any nuclear model, nor it is affected by any nuclear effect (distortion of the outgoing nucleon waves, etc.). We show that neutrino-antineutrino asymmetries occur both in the totally integrated cross sections and in the pion azimuthal differential distributions. To define the asymmetries for the latter distributions we just rely on Lorentz-invariance. All these asymmetries are independent of the lepton family and can be experimentally measured by using electron or muon neutrinos, due to the lepton family universality of the neutral-current neutrino interaction. Nevertheless and to estimate their size, we have also used the chiral model of [E. Hernandez, J. Nieves, M. Valverde, hep-ph/0701149] at intermediate energies. Results are really significant since the differences between neutrino and antineutrino induced reactions are always large in all physical channels.
dc.language.iso eng
dc.relation.ispartof Physics Letters B, 2007, vol. 647, num. 5-6, p. 452-459
dc.subject Física
dc.title Can one distinguish T-neutrinos from antineutrinos in neutral-current pion production processes?
dc.type journal article es_ES
dc.date.updated 2014-10-22T11:07:04Z
dc.identifier.doi 10.1016/j.physletb.2007.02.051
dc.identifier.idgrec 068574
dc.rights.accessRights open access es_ES

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