Published September 24, 1979 | Version v1
Journal article

High energy elastic γsub(μ) scattering off electrons in Gargamelle

  • 1. Bari Univ. (Italy). Ist. di Fisica
  • 2. European Organization for Nuclear Research, Geneva (Switzerland)
  • 3. Ecole Polytechnique, 91 - Palaiseau (France). Lab. de Physique Nucleaire et des Hautes Energies
  • 4. Milan Univ. (Italy). Ist. di Fisica
  • 5. Paris-11 Univ., 91 - Orsay (France). Lab. de l'Accelerateur Lineaire

Description

The reaction γsub(μ)e → γsub(μ)e has been investigated in the bubble chamber Gargamelle exposed to the wide-band neutrino beam of the CERN SPS. Nine electron candidates of which 0.5 are expected to be background, were found in a total statistics available of 64 000 charged current neutrino events. Results are given in terms of vector and axial vector coupling constants. The present results agree with the standard SU(2) X U(1) model for current values of sin2 thetasub(W). A critical comparison is made with the previous result based on statistics which were smaller by a factor 2.6 and which led to a rather higher cross section. (Auth.)

Additional details

Publishing Information

Journal Title
Phys. Lett., B
Journal Volume
86
Journal Issue
2
Series
Phys. Lett., B.
Journal Page Range
225-228
ISSN
0370-2693