MC Realization of IR-Improved DGLAP-CS Parton Showers: HERWIRI1.0

Abstract

We introduce the new IR-improved Dokshitzer-Gribov-Lipatov-Altarelli-Parisi-Callan-Symanzik (DGLAP-CS) kernels recently developed by one of us into the HERWIG6.5 to generate a new MC, HERWIRI1.0(31), for hadron-hadron scattering at high energies. We use MC data to compare the parton shower generated by the standard DGLAP-CS kernels and that generated by the new IR-improved DGLAP-CS kernels. The seamless interface to MC@NLO, MC@NLO/HERWIRI, is illustrated. We show comparisons with FNAL data and we discuss some possible LHC phenomenology implications.

7 pages, 2 figures, to appear Proc. RADCOR2009

References in corpus (5)

• Momentum Flow Correlations from Event Shapes: Factorized Soft Gluons and Soft-Collinear Effective Theory
• Measurement of the shape of the boson transverse momentum distribution in ppbar -> Z/gamma* -> ee+X events produced at sqrt{s}=1.96 TeV
• IR-Improved DGLAP Theory: Kernels, Parton Distributions, Reduced Cross Sections
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• IR-Improved DGLAP-CS QCD Parton Showers in Pythia8
• Interplay between IR-Improved DGLAP-CS Theory and the Precision of an NLO ME Matched Parton Shower MC in Relation to LHCb Data
• New Approach to Hard Corrections in Precision QCD for LHC and FCC Physics
• IR-improved DGLAP parton shower effects in W + jets in pp collisions at $\sqrt{s}=7$ TeV