Left-right asymmetry of nuclear shadowing in charged current DIS
Abstract
We study the shadowing effect in highly asymmetric diffractive interactions of left-handed and right-handed W-bosons with atomic nuclei. The target nucleus is found to be quite transparent for the charmed-strange Fock component of the light-cone W+ in the helicity state λ=+1 and rather opaque for the c s dipole with λ=-1. The shadowing correction to the structure function xF3 = xF3 N-xF3 N extracted from Fe and Fe data is shown to make up about 20% in the kinematical range of CCFR/NuTeV.
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