HERWIRI1.031: New Approach to Parton Shower MC's in Precision QCD Theory

Details HERWIRI1.031: New Approach to Parton Shower MC's in Precision QCD Theory HERWIRI1.031: New Approach to Parton Shower MC's in Precision QCD Theory

2010-12-13

arxiv.org/abs/1012.2653v1

PoS(ICHEP2010) (2010) 127

Physics

High Energy Physics

High Energy Physics - Phenomenology

5 pages, one figure; presented by B.F.L. Ward at ICHEP 2010

Scientific paper

The new IR-improved Dokshitzer-Gribov-Lipatov-Altarelli-Parisi-Callan-Symanzik (DGLAP-CS) kernels recently developed by one of us is implemented in the HERWIG6.5 environment to generate a new MC, HERWIRI1.0(31), for hadron-hadron scattering at high energies. The comparison between the parton shower generated by the standard DGLAP-CS kernels and that generated by the new IR-improved DGLAP-CS kernels is illustrated using MC data. This is done for some of the respective exact {\cal O}(\alpha_s) corrected spectra using the seamless interfaces to MC@NLO while making comparisons with FNAL data. Some discussion of possible implications for LHC phenomenology is also presented.

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