Spin alignment of ρ0 mesons produced in antineutrino and neutrino neon charged-current interactions
1987
Abstract In a bubble chamber experiment with BEBC the spin alignment parameter η= 1 2 (2ϱ 00 − ϱ 11 − ϱ −1−1 ) is measured for ϱ 0 mesons produced in deep inelastic charged-current antineutrino and neutrono interactions on neon. In the current fragmentation region η is found to be η v =0.48±0.27 ( stat. )±0.15 ( syst. ) for v Ne and η v =0.12±0.20 (stat.)±0.10 (syst.) for vNe interactions
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