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Ultrasoft contribution to heavy-quark pair production near threshold

M. Beneke
(
- RWTH Aachen U.
)
,
Y. Kiyo
(
- Karlsruhe U., TTP
)

Apr, 2008

10 pages

Published in:

Phys.Lett.B 668 (2008) 143-147

e-Print:

0804.4004 [hep-ph]

DOI:

10.1016/j.physletb.2008.08.031

Report number:

PITHA~08-07,
TTP-08-11,
SFB-CPP-08-18

View in:

ADS Abstract Service

reference search55 citations

Citations per year

Abstract: (arXiv)

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.

13.66.Jn
14.65.Fy
12.38.Bx
14.65.Ha
electron positron: annihilation
quark: pair production
heavy quark
top
threshold
current: correlation function

References(20)

Figures(4)

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