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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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.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.rights.uri info:eu-repo/semantics/openAccess
dc.source 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.subject Física
dc.title Bounds on the tau and muon neutrino vector and axial vector charge radius
dc.type info:eu-repo/semantics/article
dc.date.updated 2014-08-27T11:50:39Z
dc.identifier.doi http://dx.doi.org/10.1103/PhysRevD.67.033005
dc.identifier.idgrec 084481

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