Gluon Radiation in $t\bar{t}$ Production and Decay at the LHC

Abstract

Understanding the pattern of gluon radiation in $t\bar{t}$ production and decay processes is important for making an accurate determination of the top mass from the momenta of its decay products. The larger energy of the LHC $pp$ collider boosts the top cross section by a factor of 100 compared to that at the Tevatron, but it also increases the amount of additional gluon radiation. We calculate the cross section for gluon radiation in top production and decay at the LHC. The distributions of this radiation are presented and the exact matrix-element results are compared with results from the HERWIG parton-shower Monte Carlo.

16 pages including 7 figures, plain LaTeX; minor corrections to text; results unchanged

References in corpus (6)

• Automatic Generation of Tree Level Helicity Amplitudes
• Pinning down the Glue in the Proton
• Soft Gluon Radiation in Hadronic $t\bar{t}$ Production
• Gluon Radiation in t\bar{t} Production at the Tevatron p\bar{p} Collider
• On Gluon Radiation in $t\bar{t}$ Production and Decay
• Soft Gluon Radiation in Top Events: Effect of Hadronic $W$ Decays

Cited by in corpus (5)

• Review of Top Quark Physics
• Matrix Element Corrections to Parton Shower Simulations of Heavy Quark Decay
• Top Quark Physics at the Tevatron
• Parton Shower and Matching Uncertainties in Top Quark Pair Production with Herwig 7
• A Simulation of QCD Radiation in Top Quark Decays