https://doi.org/10.1140/epjc/s10052-017-4733-9
Regular Article - Theoretical Physics
Monte Carlo simulations of Higgs-boson production at the LHC with the KrkNLO method
1
Institute of Nuclear Physics, Polish Academy of Sciences, ul. Radzikowskiego 152, 31-342, Kraków, Poland
2
Particle Physics Group, School of Physics and Astronomy, University of Manchester, Oxford Road, Manchester, M13 9PL, UK
3
Institute for Theoretical Physics, Karlsruhe Institute of Technology, Wolfgang-Gaede-Strasse 1, 76131, Karlsruhe, Germany
4
Marian Smoluchowski Institute of Physics, Jagiellonian University, ul. Łojasiewicza 11, 30-348, Kraków, Poland
5
Theoretical Physics Department, CERN, Geneva 23, 1211, Switzerland
* e-mail: andrzej.siodmok@cern.ch
Received:
24
October
2016
Accepted:
3
March
2017
Published online:
16
March
2017
We present numerical tests and predictions of the KrkNLO method for matching of NLO QCD corrections to hard processes with LO parton-shower Monte Carlo generators (NLO+PS). This method was described in detail in our previous publications, where it was also compared with other NLO+PS matching approaches (MC@NLO and POWHEG) as well as fixed-order NLO and NNLO calculations. Here we concentrate on presenting some numerical results (cross sections and distributions) for 
(Drell–Yan) and Higgs-boson production processes at the LHC. The Drell–Yan process is used mainly to validate the KrkNLO implementation in the Herwig 7 program with respect to the previous implementation in Sherpa. We also show predictions for this process with the new, complete, MC-scheme parton distribution functions and compare them with our previously published results. Then we present the first results of the KrkNLO method for Higgs production in gluon–gluon fusion at the LHC and compare them with MC@NLO and POWHEG predictions from Herwig 7, fixed-order results from HNNLO and a resummed calculation from HqT, as well as with experimental data from the ATLAS collaboration.
© The Author(s), 2017
