Applications of Perturbative NRQCD

1998/09/18 by A. H. Hoang, Hoang, A. H.
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #hep-ph

paper · pdf · doi:10.48550/arxiv.hep-ph/9809431

13 pages, latex, uses sprocl.sty, 3 postscript figures included

arxiv created 1998/09/18 · arxiv updated 2009/11/30

Abstract

We review the theoretical ideas and tools required to arrive at a next-to-next-to-leading order (NNLO) description of the heavy quark-antiquark production cross section in e⁺e^- annihilation for the case that the center of mass kinetic energy of the quarks is larger than Λ_QCD. In this case the NNLO cross section can be calculated with purely perturbative methods. We present details of the calculation and discuss two applications, the determination of the bottom quark mass from Upsilon sum rules and the top-antitop production cross section close to threshold in e⁺e^- annihilation.

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