Comparison of νn and νp charged-current cross sections from high-energy neutrino interactions in deuterium

J. Hanlon, R. A. Burnstein, H. A. Rubin, C. Y. Chang, T. Dombeck, G. A. Snow, D. Son, P. H. Steinberg, R. Engelmann, T. Kafka, S. Sommars, T. Kitagaki, S. Tanaka, H. Yuta, K. Abe, K. Hasegawa, A. Yamaguchi, K. Tamai, T. Hayashino, S. KunoriY. Ohtani, H. Hayano, C. C. Chang, W. A. Mann, J. Schneps

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Abstract

From an analysis of the reaction νμ+d→μ-+X, obtained from an exposure of the Fermilab 15-ft deuterium-filled bubble chamber, the ratios of charged-current cross sections for Eν>10 GeV are determined to be σ(νn)σ(νp)=2.03±0.28 for Eν=50 GeV, and σ(ν̄n)σ(ν̄p)=0.51±0.16 for Eν̄=40 GeV. Bjorken-x distributions for neutron and proton targets show that the majority quark in the nucleon has a broader momentum distribution in the infinite momentum frame than does the minority quark.

Original languageEnglish
Pages (from-to)1817-1821
Number of pages5
JournalPhysical Review Letters
Volume45
Issue number23
DOIs
StatePublished - Jan 1 1980

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Hanlon, J., Burnstein, R. A., Rubin, H. A., Chang, C. Y., Dombeck, T., Snow, G. A., Son, D., Steinberg, P. H., Engelmann, R., Kafka, T., Sommars, S., Kitagaki, T., Tanaka, S., Yuta, H., Abe, K., Hasegawa, K., Yamaguchi, A., Tamai, K., Hayashino, T., ... Schneps, J. (1980). Comparison of νn and νp charged-current cross sections from high-energy neutrino interactions in deuterium. Physical Review Letters, 45(23), 1817-1821. https://doi.org/10.1103/PhysRevLett.45.1817