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High energy neutrino in a nuclear environment: mirror asymmetry of the shadowing effect

V. R. Zoller

hep-pharXiv:hep-ph/0607078

Abstract

The parity non-conservation effect in diffractive charged current DIS is quantified in terms of color dipole sizes of left-handed and right-handed electroweak bosons. We identify the origin and estimate the strength of the left-right asymmetry effect and present comparison with experimental data on the parity-odd structure function ΔxF3 =xF3νN-xF3νN. We study the shadowing effect in absorption of left-handed and right-handed W-bosons by 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.

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