Journal
PHYSICS LETTERS B
Volume 668, Issue 2, Pages 143-147Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physletb.2008.08.031
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Funding
- DFG
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We compute the third-order correction to the heavy-quark current correlation function due to the emission and absorption of an ultrasoft gluon. Our result supplies a missing contribution to top-quark pair production near threshold and the determination of the bottom quark mass from QCD sum rules. (C) 2008 Elsevier B.V. All rights reserved.
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