New Theoretical developments

• Variable Flavor Number Scheme (VFN)

  • (F.I Olness, R.J. Scalise and Wu-Ki Tung hep-ph/9712494)

• Hadronization of heavy quarks

  • Harder b?B fragmentation (Colangelo-Nason)
  • ?30% (40%) higher B cross section in the central (forward) region

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