New Approach to Parton Shower MC's for Precision QCD Theory: HERWIRI1.0(31)
S. Joseph (1), S. Majhi (2), B.F.L. Ward (1), S.A. Yost (3) ((1), Department of Physics, Baylor University, Waco, TX, USA, (2) Theory Division,, Saha Institute of Nuclear Physics, Kolkata, India, (3) Department of Physics,, The Citadel, Charleston, SC, USA)
TL;DR
This paper introduces HERWIRI1.0(31), a new Monte Carlo generator incorporating IR-improved DGLAP-CS kernels, enhancing precision in QCD simulations for high-energy hadron collisions and comparing its performance with standard methods.
Contribution
The paper presents a novel MC generator, HERWIRI1.0(31), implementing IR-improved DGLAP-CS kernels within HERWIG6.5 for improved QCD accuracy.
Findings
HERWIRI1.0(31) shows improved agreement with FNAL data.
Comparison demonstrates differences between IR-improved and standard DGLAP-CS kernels.
Potential implications for LHC phenomenology are discussed.
Abstract
By implementing the new IR-improved Dokshitzer-Gribov-Lipatov-Altarelli-Parisi-Callan-Symanzik (DGLAP-CS) kernels recently developed by one of us in the HERWIG6.5 environment we generate a new MC, HERWIRI1.0(31), for hadron-hadron scattering at high energies. We use MC data to illustrate the comparison between the parton shower generated by the standard DGLAP-CS kernels and that generated by the new IR-improved DGLAP-CS kernels. The interface to MC@NLO, MC@NLO/HERWIRI, is illustrated. Comparisons with FNAL data and some discussion of possible implications for LHC phenomenology are also presented.
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