Hyperon polarization in ν_μcharged current interaction at the NOMAD energies

Details Hyperon polarization in ν_μcharged current interaction at the NOMAD energies Hyperon polarization in ν_μcharged current interaction at the NOMAD energies

2002-04-28

arxiv.org/abs/hep-ph/0204323v2

Phys. Rev. D66, 057302 (2002)

Physics

High Energy Physics

High Energy Physics - Phenomenology

11 pages, 3 figures

Scientific paper

10.1103/PhysRevD.66.057302

We show that, in $\nu_\mu N\to \mu^-\Lambda X$ at the NOMAD energies, it is impossible to separate the products of the fragmentation of the struck quark from those of the nucleon remnant. The latter has a large contribution even in the current fragmentation region and has to be taken into account in calculating $\Lambda$ polarization using different pictures. Based on this, we make a rough estimation for the longitudinal $\Lambda$ polarization in $\nu_{\mu} N \to \mu^- \Lambda X$ at the NOMAD energies. A comparison with the data is given and predictions for $\nu_\mu N\to\mu^-\Sigma^+X$ are presented.

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