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Bounds on the tau and muon neutrino vector and axial vector charge radius

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Bounds on the tau and muon neutrino vector and axial vector charge radius

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dc.contributor.author Hirsch, Martin
dc.contributor.author Nardi, Enrico
dc.contributor.author Restrepo, Diego
dc.date.accessioned 2014-08-27T11:50:39Z
dc.date.available 2014-08-27T11:50:39Z
dc.date.issued 2003
dc.identifier.citation Hirsch, Martin Nardi, Enrico Restrepo, Diego 2003 Bounds on the tau and muon neutrino vector and axial vector charge radius Physical Review D 67 3 033005
dc.identifier.uri http://hdl.handle.net/10550/37444
dc.description.abstract A Majorana neutrino is characterized by just one flavor diagonal electromagnetic form factor, the anapole moment, which in the static limit corresponds to the axial vector charge radius <r(A)(2)>. Experimental information on this quantity is scarce, especially in the case of the tau neutrino. We present a comprehensive analysis of the available data on the single photon production process e(+)e(-)-->nu(nu) over bar gamma off Z resonance, and we discuss the constraints that these measurements can set on <r(A)(2)> for the tau neutrino. We also derive limits for the Dirac case, when the presence of a vector charge radius <r(V)(2)> is allowed. Finally, we comment on additional experimental data on nu(mu) scattering from the NuTeV, E734, CCFR, and CHARM-II Collaborations, and estimate the limits implied for <r(A)(2)> and <r(V)(2)> for the muon neutrino.
dc.language.iso eng
dc.relation.ispartof Physical Review D, 2003, vol. 67, num. 3, p. 033005
dc.subject Física
dc.title Bounds on the tau and muon neutrino vector and axial vector charge radius
dc.type journal article es_ES
dc.date.updated 2014-08-27T11:50:39Z
dc.identifier.doi 10.1103/PhysRevD.67.033005
dc.identifier.idgrec 084481
dc.rights.accessRights open access es_ES

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