Probing nucleon strange asymmetry from charm production in neutrino deep inelastic scattering
Department of Physics, Peking University, 100871, Beijing, P.R. China
2 CCAST (World Laboratory), P.O. Box 8730, 100080, Beijing, P.R. China
3 Di.S.T.A, Universitá del Piemonte Orientale “A. Avogadro” and INFN Gruppo Collegato di Alessandria, 15100, Alessandria, Italy
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We propose a means to detect the nucleon strange quark-antiquark asymmetry, which is predicted as a non-perturbative effect, but still unchecked directly by available experiments. The difference for the and meson production cross sections in neutrino and antineutrino induced charged current deep inelastic scattering is illustrated to be sensitive to the nucleon strange asymmetry. A prospect is given and the effect due to the light quark fragmentation is also discussed for the extraction of the strange asymmetry in future experiments.
© Springer-Verlag, 2005