Ultrasoft contribution to heavy-quark pair production near threshold

Preprint

24 April 2008

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.0804.4004

Abstract

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.

Keywords

ULTRASOFT CONTRIBUTION
QUARK PAIR PRODUCTION
HEAVY QUARK
CORRELATION
ABSORPTION
QCD

All Related Versions

Version 1, 2008-04-24, ArXiv
Published version: Physics Letters B, 668 (2), 143.

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