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The European Physical Journal C

, Volume 60, Issue 3, pp 375–386 | Cite as

Top-quark pair production near threshold at LHC

  • Y. Kiyo
  • J. H. Kühn
  • S. Moch
  • M. Steinhauser
  • P. Uwer
Regular Article - Theoretical Physics

Abstract

The next-to-leading order analysis for the cross section for hadroproduction of top-quark pairs close to threshold is presented. Within the framework of non-relativistic QCD a significant enhancement compared to fixed-order perturbation theory is observed which originates from the characteristic remnant of the 1S peak below production threshold of top-quark pairs. The analysis includes all color-singlet and color-octet configurations of top-quark pairs in S-wave states and, for the dominant configurations, it employs all-order soft-gluon resummation for the hard parton cross section. Numerical results for the Large Hadron Collider at \(\sqrt{s}=14~\) TeV and \(\sqrt{s}=10~\) TeV and also for the Tevatron are presented. The possibility of a top-quark mass measurement from the invariant-mass distribution of top-quark pairs is discussed.

PACS

12.38.Bx 12.38.Cy 14.65.Ha 

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Copyright information

© Springer-Verlag / Società Italiana di Fisica 2009

Authors and Affiliations

  • Y. Kiyo
    • 1
  • J. H. Kühn
    • 1
  • S. Moch
    • 2
  • M. Steinhauser
    • 1
  • P. Uwer
    • 3
  1. 1.Institut für Theoretische Teilchenphysik, Universität Karlsruhe (TH)Karlsruhe Institute of Technology (KIT)KarlsruheGermany
  2. 2.Deutsches Elektronen-Synchrotron DESYZeuthenGermany
  3. 3.Institut für PhysikHumboldt-Universität zu BerlinBerlinGermany

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