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 language | English |
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Pages (from-to) | 1817-1821 |
Number of pages | 5 |
Journal | Physical Review Letters |
Volume | 45 |
Issue number | 23 |
DOIs | |
State | Published - 1980 |