0 Semi - inclusive production of pions in DIS and d̄ − ū asymmetry

نویسندگان

  • V. Uleshchenko
  • A. Szczurek
  • J. Speth
چکیده

We discuss the role of some nonpartonic effects which lead to N π + p = N π + n and N π − p = N π − n and may therefore modify the conclusion on the ¯ d − ¯ u asymmetry extracted from semi-inclusive production of pions in DIS. Quantitative estimations for resolved photon and exclusive ρ 0 are given as examples. The results are discussed in the context of recent HERMES data.

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d̄ − ū asymmetry and semi - inclusive production of pions in DIS

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تاریخ انتشار 2008