Gluon Radiation and Energy Losses in Top Quark Production

Abstract

The emission of energetic gluons in production in $\ee$ annihilation can have important experimental consequences, in particular on top quark mass measurements. We present compact, analytical expressions for the gluon energy distribution and its average value at first order in QCD perturbation theory. Our results are valid for arbitrary masses, collision energies and production currents. We pay particular attention to top quark production near threshold, and show that in certain cases the soft gluon approximation is insufficient to describe the radiation spectrum.

17 pages, 3 figures (not included)

References in corpus (2)

• Properties of Soft Radiation Near and $W^{+}{W}^{-}$ Threshold
• Soft Gluon Radiation in Hadronic $t\bar{t}$ Production

Cited by in corpus (12)

• Specific Features of Heavy Quark Production. LPHD approach to heavy particle spectra
• Physics Opportunities of e+e- Linear Colliders
• APACIC++, A PArton Cascade In C++, version 1.0
• Multiplicity Difference between Heavy and Light Quark Jets Revisited
• Herwig++ Monte Carlo At Next-To-Leading Order for e+e- annihilation and lepton pair production
• Gluon Radiation Off Scalar Stop Particles
• Central jet production as a probe of the perturbative formalism for exclusive diffraction
• On radiative QCD backgrounds to exclusive H -> b bbar production at the LHC and a photon collider
• Characterizing Invisible Electroweak Particles through Single-Photon Processes at High Energy $e^{+}{e}^{-}$ Colliders
• Confinement and the Pion Nucleon Sigma Term
• On the rigidity of back-to-back top quark pairs in e^+e^- annihilation
• Gluon Radiation in Top Quark Production and Decay at $e^{+}{e}^{-}$ Colliders