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Comment on Resummation of Mass Distribution for Jets Initiated by Massive Quarks

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 نشر من قبل Giancarlo Ferrera
 تاريخ النشر 2008
  مجال البحث
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We compute in the heavy quark effective theory the soft coefficient D_2 entering the resummation of next-to-next-to-leading threshold logarithms for jets initiated by a quark with a small mass compared to the hard scale of the process. We find complete agreement with a previous computation in full QCD. Contrary to our previous guess, this coefficient turns out to be different from that one entering heavy flavor decay or heavy flavor fragmentation.

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