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

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

2006-07-07

arxiv.org/abs/hep-ph/0607078v2

J.Phys. G32 (2006) 2305-2312

Physics

High Energy Physics

High Energy Physics - Phenomenology

11 pages, 2 figures, Talk presented at XXXIII International Conference on High Energy Physics 26.07.06-02.08.06 Moscow, versio

Scientific paper

10.1088/0954-3899/32/11/021

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 $\Delta xF_3 =xF_3^{\nu N}-xF_3^{\bar\nu N}$. 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 $\lambda=+1$ and rather opaque for the $c\bar s$ dipole with $\lambda=-1$.

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