NLO QCD corrections to top anti-top bottom anti-bottom production at the LHC: 1. quark-antiquark annihilation

Abstract

The process pp -> top anti-top bottom anti-bottom + X represents a very important background reaction to searches at the LHC, in particular to top anti-top H production where the Higgs boson decays into a bottom anti-bottom pair. A successful analysis of top anti-top H at the LHC requires the knowledge of direct top anti-top bottom anti-bottom production at next-to-leading order in QCD. We take the first step in this direction upon calculating the next-to-leading-order QCD corrections to the subprocess initiated by quark anti-quark annihilation. We devote an appendix to the general issue of rational terms resulting from ultraviolet or infrared (soft or collinear) singularities within dimensional regularization. There we show that, for arbitrary processes, in the Feynman gauge, rational terms of infrared origin cancel in truncated one-loop diagrams and result only from trivial self-energy corrections.

30 pages, LaTeX, 12 postscript figures

References in corpus (27)

• MadGraph/MadEvent v4: The New Web Generation
• Reducing full one-loop amplitudes to scalar integrals at the integrand level
• An Automated Implementation of On-Shell Methods for One-Loop Amplitudes
• Electroweak and QCD corrections to Higgs production via vector-boson fusion at the LHC
• Strong and electroweak corrections to the production of Higgs+2jets via weak interactions at the LHC
• Full one-loop amplitudes from tree amplitudes
• On-Shell Methods in Perturbative QCD
• A Numerical Unitarity Formalism for Evaluating One-Loop Amplitudes
• On the Rational Terms of the one-loop amplitudes
• NLO QCD corrections to t tbar + jet production at hadron colliders
• Techniques for the calculation of electroweak radiative corrections at the one-loop level and results for W-physics at LEP200
• Bootstrapping One-Loop QCD Amplitudes with General Helicities
• NLO QCD corrections to tri-boson production
• QCD corrections to tri-boson production
• Next-to-leading order QCD corrections to W+Z and W-Z production via vector-boson fusion
• Next-to-leading order QCD corrections to Z boson pair production via vector-boson fusion
• QCD corrections to hadronic WWZ production with leptonic decays
• Algebraic evaluation of rational polynomials in one-loop amplitudes
• NLO QCD corrections to WW+jet production at hadron colliders
• One-loop phi-MHV amplitudes using the unitarity bootstrap
• Closed-Form Decomposition of One-Loop Massive Amplitudes
• The NLO multileg working group: summary report
• Fundamental Strings, Holography, and Nonlinear Superconformal Algebras
• Precise predictions for LHC using a GOLEM
• NLO QCD corrections to the production of a weak boson pair associated by a hard jet
• QCD corrections to t\bar t b \bar b productions via photon-photon collisions at linear colliders
• Signatures of Strong Electroweak Symmetry Breaking in pp -> b \bar{b} t \bar{t} + X at LHC

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