Measurements of the longitudinal structure function and |V_cs| in the   CCFR experiment
  Measurements of charged current neutrino and anti-neutrino nucleon interactions in the CCFR detector are used to extract the structure functions, F_2, xF_3(nu), xF_3(nubar) and R(longitudinal) in the kinematic region 0.01<x<0.6 and 1<Q^2<300 GeV^2. The new measurements of R in the x<0.1 region provide a constraint on the level of the gluon distribution. The x and Q^2 dependence of R is compared with a QCD based fit to previous data. The CKM matrix element |V_cs| is extracted from a combined analysis of xF_3 and dimuon data. 
CCFR/NuTeV Collaboration: U.K.Yang, C.McNulty, C.G.Arroyo,   L.deBarbaro, P.deBarbaro, A.O.Bazarko, R.H.Bernstein, A.Bodek, ...