NLL resummation of the heavy-quark hadroproduction cross-section

We compute the effect of soft-gluon resummation, at the next-to-leading-logarithmic level, in the hadroproduction cross section for heavy flavours. Applications to top, bottom and charm total cross sections are discussed. We find in general that the corrections to the fixed next-to-leading order res...

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Published inNuclear physics. B Vol. 529; no. 1; pp. 424 - 450
Main Authors Bonciani, Roberto, Catani, Stefano, Mangano, Michelangelo L., Nason, Paolo
Format Journal Article
LanguageEnglish
Published Elsevier B.V 28.09.1998
Subjects
Higher-order corrections
QCD
Resummation
Threshold
Top
13.87.-a
14.65.Ha
QCD
Top
Resummation
11.25.Db
13.85.Qk
Higher-order corrections
Threshold
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Summary:We compute the effect of soft-gluon resummation, at the next-to-leading-logarithmic level, in the hadroproduction cross section for heavy flavours. Applications to top, bottom and charm total cross sections are discussed. We find in general that the corrections to the fixed next-to-leading order results are larger for larger renormalization scales, and small, or even negative, for smaller scales. This leads to a significant reduction of the scale dependence of the results, for most experimental configurations of interest.
ISSN:0550-3213
1873-1562
DOI:10.1016/S0550-3213(98)00335-6