Probing nucleon strange asymmetry from charm production in neutrino deep inelastic scattering |
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Authors: | Puze?Gao Email author" target="_blank">Bo-Qiang?MaEmail author |
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Institution: | (1) 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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Abstract: | 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
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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.Received: 23 April 2005, Published online: 27 July 2005PACS:
14.60.Pq, 12.15.Ff |
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