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The first observation of μ + e + events produced in antineutrino interactions using the Fermilab 15 ft bubble chamber is reported. The relative yield of μ + e + events is (4.8 −3.2 +5.3 ) × 10 −4 of all charged-current events with antineutrino energy greater than 10 GeV. The observed V 0 rate is 1.0 −1.0 +1.2 per μ + e + event. Possible sources of these events are discussed.

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INCLUSIVE CHARGED CURRENT ANTI-NEUTRINO - NUCLEON INTERACTIONS AT HIGH-ENERGIES

The Fermilab-Serpukhov-Moscow-Michigan collaboration Ammosov, V.V. ; Denisov, A.G. ; Gapienko, G.S. ; et al.

Nucl.Phys.B 199 (1982) 399-423, 1982.

Inspire Record 167339 DOI 10.17182/hepdata.41220

We present results on the experimental study of inelastic charged-current antineutrino-nucleon scattering in the energy range of 10–200 GeV. The data sample, consisting of about 6500 antineutrino-induced events, was obtained in the Fermilab 15 ft bubble chamber filled with a heavy neon-hydrogen mixture. The differential cross sections for ν μ N interactions are presented in terms of scaling variables x and y . The structure functions F 2 ν and xF 3 ν have been evaluated as functions of x and E ν . A deviation from the scaling hypothesis, similar to those found in other experiments on inelastic lepton-nucleon scattering, has been observed. The data are interpreted in the framework of the quark-parton model. Quark and antiquark distributions and their energy dependences are presented.

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MEASUREMENT OF THE R PARAMETER IN P P SCATTERING AT 0.97-GEV AND ANALYSIS OF EXPERIMENTAL RESULTS ON TRIPLE SCATTERING. (IN RUSSIAN)

CROSS-SECTION OF pi- MESON CHARGED EXCHANGE REACTION ON NUCLEI AT 40-GeV/c MOMENTUM

INCLUSIVE PRODUCTION OF MESON RESONANCES IN MULTI - NUCLEON INTERACTIONS OF pi- MESONS WITH CARBON NUCLEI AT P = 40-GeV/c

MEASUREMENT OF TOTAL CROSS-SECTIONS AND SLOPE PARAMETER OF ELASTIC PI- D AND PI- HE-4 SCATTERING AT 40.4-GEV. (IN RUSSIAN)

MEASUREMENT OF POLARIZATION PARAMETER P IN ELASTIC PI+ P SCATTERING IN THE ENERGY RANGE 500-MEV - 600-MEV. (IN RUSSIAN)

Investigation of the Energy Dependence of the Spin Spin Correlation in the Diproton Resonance Region

QUASIELASTIC muon-neutrino n SCATTERING AT 3-GeV TO 30-GeV ENERGY

Space-time Characteristics of Radiation Region of Secondary Negative Pions, Produced in $\pi^- p$ Interactions at 40-{GeV}/$c$

Observation of $\mu^+ e^+$ Events in Anti-neutrino - Nucleon Interactions

INCLUSIVE CHARGED CURRENT ANTI-NEUTRINO - NUCLEON INTERACTIONS AT HIGH-ENERGIES