Bound on the tau neutrino magnetic moment from the BEBC beam dump experiment
Physics Letters B 280:1-2 (1992) 153-158
Abstract:
We have searched for electrons scattered in the forward direction by neutrinos produced by dumping a 400 GeV/c proton beam on a copper target. We estimate the number of tau neutrinos produced from the decays of Ds mesons in the dump. The data limit the possible magnetic moment of tau neutrinos to be below 5.4×10-7 ωB. This rules out the suggestion that tau neutrinos of mass O(MeV) constitute the dark matter in the universe. © 1992.Coherent production of a1 - mesons and (ρπ)- systems by antineutrinos on neon
Zeitschrift für Physik C Particles and Fields 49:3 (1991) 385-394
Abstract:
The coherent production of 3π systems by charged current antineutrino interactions on neon nuclei is studied in the bubble chamber BEBC exposed to the CERN SPS wide band beam. The coherent signal is attributed mainly to (ρπ) production, where the (ρπ) system is either non-resonant or comes from the decay of a1 mesons. The kinematical variables and the total cross section are compared with the predictions of the meson dominance model. © 1991 Springer-Verlag.Track reconstruction methodology in the Zeus central tracking detector
AIP Conference Proceedings AIP Publishing 209 (1990) 639-646
Observation of shadowing of neutrino- and antineutrino-nucleus interactions and comparison with PCAC predictions
Physics Letters B 232:3 (1989) 417-424
Abstract:
Comparing the kinematical distributions of events obtained on neon and deuterium targets in similar experimental conditions reveals a reduction of the neutrino and antineutrino charged current cross section per nucleon in neon at low Q2. The effect, interpreted as due to geometric shadowing of the weak propagator in interactions of neutrinos and antineutrinos with nuclei, agrees well with predictions derived from PCAC. © 1989.Coherent production of π+ mesons in ν-neon interactions
Zeitschrift Fur Physik C Particles and Fields 43:4 (1989) 523-526