ANL · 1979

Measurement of the Elastic Scattering of Neutrinos and Anti-neutrinos by Protons

Phys.Rev.Lett. 42 1198 · 10.1103/PhysRevLett.42.1198

Measurements

Current	Flavor	Target	Topology	Type	Observables	Energy
NC	νμ, ν̄μ	H2	NCE	—	—	—

Abstract

We have observed 217 (66) events of the process νp→νp (ν¯p→ν¯p) with an estimated background of 82 (28). The neutral-to-charged-current ratios are σ(νp→νp)σ(νn→μ−p)=0.11±0.02 and σ(ν¯p→ν¯p)σ(ν¯p→μ+n)=0.19±0.05 for 0.40<Q2<0.90 (GeV/c)2, where -Q2 is the square of the momentum transfer to the nucleon. These yield σ(ν¯p→ν¯p)σ(νp→νp)=0.53±0.17. The neutral-current form factors at Q2=0 are GE=0.5−0.5+0.25, GM=1.0−0.04+0.35, and gA=0.5−0.15+0.2.

Citation

@article{Entenberg:1979wc,
  collaboration = "ANL",
  title = "{Measurement of the Elastic Scattering of Neutrinos and Anti-neutrinos by Protons}",
  doi = "10.1103/PhysRevLett.42.1198",
  journal = "Phys.Rev.Lett.",
  volume = "42",
  pages = "1198",
  year = "1979",
}