Nuclear effects in deep inelastic scattering of charged-current neutrino off nuclear target |
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| Authors: | C.-G. Duan G.-L. Li P.-N. Shen |
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| Affiliation: | (1) Institute of High Energy Physics, CAS, P.O. Box 918(4), Beijing, 100049, China;(2) Department of Physics, Hebei Normal University, Shijiazhuang, 050016, China;(3) CCAST (World Laboratory), P.O. Box 8730, Beijing, 100080, China;(4) Graduate School, Chinese Academy of Sciences, Beijing, 100049, China;(5) Institute of Theoretical Physics, Chinese Academy of Sciences, P.O. Box 2735, Beijing, 100080, China;(6) Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator, Lanzhou, 730000, China |
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| Abstract: | The nuclear effects in the neutrino–nucleus charged-current inelastic scattering process is studied by analyzing the CCFR and NuTeV data. The structure functions F2(x,Q2) and xF3(x,Q2) as well as differential cross sections are calculated by using CTEQ parton distribution functions and the EKRS and HKN nuclear parton distribution functions, and these are compared with the CCFR and NuTeV data. It is found that the corrections of the nuclear effect to the differential cross section for the charged-current antineutrino scattering on the nucleus are negligible, the EMC effect exists in the neutrino structure function F2(x,Q2) in the large x region, the shadowing and anti-shadowing effect occur in the distribution functions of valence quarks in the small and medium x region, respectively. It is also found that shadowing effects on F2(x,Q2) in the small x region in the neutrino–nucleus and the charged-lepton–nucleus deep inelastic scattering processes are different. It is clear that the neutrino–nucleus deep inelastic scattering data should further be employed in restricting the nuclear parton distributions. PACS 13.15.+g; 24.85.+p; 25.30.-c |
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