Matching NLO QCD with parton shower in Monte Carlo scheme — the KrkNLO method

• DOI: 10.1007/jhep10(2015)052
• Publication Date: 2015-10-09T10:50:29Z
• Authors: S. Jadach; W. Płaczek; S. Sapeta; A. Siódmok; M. Skrzypek
• Keywords: Nuclear and High Energy Physics; High Energy Physics - Phenomenology; High Energy Physics - Experiment (hep-ex); High Energy Physics - Phenomenology (hep-ph); Monte Carlo Simulations; NLO Computations; 0103 physical sciences; FOS: Physical sciences; 01 natural sciences; High Energy Physics - Experiment

50 pages, 14 figures. Version published in JHEP: added a comparison of krkNLO results and the fixed-order NNLO result from the DYNNLO program and addressed several points raised by the referee<br/>A new method of including the complete NLO QCD corrections to hard processes in the LO parton-shower Monte Carlo (PSMC) is presented. This method, called KrkNLO, requires the use of parton distribution functions in a dedicated Monte Carlo factorization scheme, which is also discussed in this paper. In the future, it may simplify introduction of the NNLO corrections to hard processes and the NLO corrections to PSMC. Details of the method and numerical examples of its practical implementation, as well as comparisons with other calculations, such as MCFM, MC@NLO, POWHEG, for single $Z/��^*$-boson production at the LHC, are presented.<br/>