Dynamical zeros in neutrino-electron elastic scattering at leading order
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Dynamical zeros in neutrino-electron elastic scattering at leading order

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Dynamical zeros in neutrino-electron elastic scattering at leading order

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Segura Sala, Javier; Bernabeu Alberola, José Perfil; Botella Olcina, Francisco J. Perfil; Peñarrocha Gantes, José Antonio
This document is a artículoDate1994

Este documento está disponible también en : http://hdl.handle.net/10550/39592
We show the existence of dynamical zeros in the helicity amplitudes for neutrino-electron elastic scattering at lowest order in the standard theory. In particular, the lambda=1/2 nonflip electron helicity amplitude in the electron-antineutrino process vanishes for an incident neutrino energy E(v)=m(e)/(4 sin(2) theta(W)) and forward electrons (maximum recoil energy). The rest of the helicity amplitudes show kinematical zeros in this configuration and therefore the cross section vanishes. Prospects to search for the neutrino magnetic moment are discussed.

    Segura Sala, Javier; Bernabeu Alberola, José; Botella Olcina, Francisco J.; Peñarrocha Gantes, José Antonio (1994) Dynamical zeros in neutrino-electron elastic scattering at leading order Physical Review D 49 3 1633 1636
http://dx.doi.org/10.1103/PhysRevD.49.1633

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