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What is QCD sum rule(s)?

  1. Aug 28, 2006 #1
    What is QCD sum rule(s)?
  2. jcsd
  3. Aug 28, 2006 #2

    Meir Achuz

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    A QCD sum rule is an integral, usually from x=0 to x=1(Bjorken), of something (e.g. spin projection), Usually some PQCD conjecture implies a particular value for the integral. One difficulty is getting to x=0 experimentally. Another is what corrections to the conjecture do to the sum rule.
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