Barlag%2C S.J.M
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Measurement of the Ratios of $\bar{\nu}_\mu n$ to $\bar{\nu}_\mu p$ Charged Current Cross-sections at High-energies

Allasia, D. ; Angelini, C. ; Baldo-Ceolin, M. ; et al.
Phys.Lett.B 107 (1981) 148-152, 1981.
Inspire Record 167732 DOI 10.17182/hepdata.39982

From the analysis of 5630 v υ and of 1372 v π charged current interactions, obtained in the BEBC bubble chamber filled with deuterium and exposed to the CERN wide band antineutrino beam, the ratios of cross section on neutron and photon targets have been measured and found to be R  σ ν)/σ v p = 0.51 ± 0.01 (±0.03) , and R  σ( ν n )/σ( v p ) = 22.2 ± 0.12 (±0.25) The dependence of these ratios on the x scaling variable shows, in a direct way, that the momentum distribution of the majority quark, u p ( x ) = d n ( x ), is broader than that of the minority quark, u n ( x ) = d p ( x ).

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Measurement of the Neutron and Proton Structure Functions From Neutrino and Anti-neutrinos Scattering in Deuterium

The WA25 collaboration Allasia, D. ; Angelini, C. ; Baldini, A. ; et al.
Phys.Lett.B 135 (1984) 231, 1984.
Inspire Record 192102 DOI 10.17182/hepdata.30611

Data from an exposure of the BEBC bubble chamber filled with deuterium to neutrino and antineutrino wide band beams have been used to extract the x dependence of the structure functions for scattering on protons and neutrons and the fractional momentum distributions of the valence quarks and the antiquarks of different flavours. The difference F n 2 − F p 2 is compared with recent data from high energy μD scattering. A result is also obtained on the sum rule giving the difference between the number of up and down quarks in the nucleon.

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