0 Semi - inclusive production of pions in DIS and d̄ − ū asymmetry
نویسندگان
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.
منابع مشابه
d̄ − ū asymmetry and semi - inclusive production of pions in DIS
¯ d − ¯ u asymmetry and semi-inclusive production of pions in DIS Abstract We investigate unambiguities in the extraction of the ¯ d − ¯ u asymmetry from semi-inclusive production of pions in DIS. The role of several effects beyond the quark-parton model (QPM) which lead to N π + p = N π + n and N π − p = N π − n and may therefore cloud such an extraction is studied. The results are discussed i...
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