A Measurement of R =σₗ/σₜ in Deep Inelastic Neutrino-Nucleon Scattering at the Tevatron

الأصل · EN

Measurements of neutrino-nucleon and antineutrino-nucleon differential cross sections using the CCFR neutrino detector at Fermilab have been used to extract preliminary values of R =σₗ/σₜ in the kinematic region 0.01<x<0.6, and 4<Q²<300 GeV². The new data provide the first measurements of R in the x<0.1 region. The x and Q² dependence of R is compared with a QCD based fit to previous data. The QCD fit, which provides an estimate of R in small x region where R has not been previously measured, is in good agreement with the new CCFR data.