par Marage, Pierre 
;Bertrand, Daniel ; [et al.]
Référence Zeitschrift für Physik. C, Particles and fields, 31, 2, page (191-197)
Publication Publié, 1986
;Bertrand, Daniel ; [et al.]Référence Zeitschrift für Physik. C, Particles and fields, 31, 2, page (191-197)
Publication Publié, 1986
Article révisé par les pairs
| Résumé : | The cross section for coherent production of a single π- meson in charged current antineutrino interactions on neon nuclei has been measured in BEBC to be (175±25) 10-40 cm2/neon nucleus, averaged over the energy spectrum of the antineutrino wide band beam at the CERN SPS; this corresponds to (0.9±0.1) % of the total charged current {Mathematical expression} cross section. The distributions of kinematical variables are in agreement with theoretical predictions based on the PCAC hypothesis and the meson dominance model; in particular, the Q2 dependence is well described by a propagator containing a mass m=(1.35±0.18) GeV. The absolute value of the cross section is also in agreement with the model. This analysis thus provides a test of the PCAC hypothesis in the antineutrino energy range 5-150 GeV. © 1986 Springer-Verlag. |
