Simulation of multiple partonic interactions in Herwig

By M. Bahr, S. Gieseke, M. Seymour. 2008

167 citations recorded by the source corpus.

In this paper we describe a model of multiple partonic interactions that has been implemented in Herwig++. Tuning its two free parameters we find a good description of CDF underlying event data. We show extrapolations to the LHC.

Subfields: Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/a5b88eb4f4b3658dcc73951eb7d0f1ec06127dce

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In Nuclear and High Energy Physics

Citations in the corpus

On the characterisation of the underlying event (2009, methodology): “Such measurements enter into tunes of Monte Carlo models of the UE [3–10].”
Higgs boson pair production in the D = 6 extension of the SM (2014, methodology): “For realistic description of the final states, parton showering and hadronization were performed using HERWIG++, and the simulation of the underlying event was included via multiple secondary parton interactions [115].”
Jet energy measurement and its systematic uncertainty in proton–proton collisions at $$\sqrt{s}=7$$s=7 TeV with the ATLAS detector (2015, methodology): “The underlying event and soft inclusive interactions are described using a hard and soft MPI model [33].”
Factorization at the LHC: From PDFs to Initial State Jets (Ph.D. thesis) (2009, methodology): “In these event generators the corresponding effects should be described at leading order by the initial-state parton shower in conjunction with models for the underlying event [24, 60, 161, 162].”
Les Houches 2017: Physics at TeV Colliders Standard Model Working Group Report (2017, background): “where dσPS+HAD+MPI/dO is the MCEG prediction differential in observable O with parton showering, hadronization, and MPI [705,1019] enabled and dσPS/ dO refers to the MCEG prediction with hadronization and MPI disabled.”
Double parton distributions incorporating perturbative QCD evolution and momentum and quark number sum rules (2009, background): “spect, their precise calculation is not possible using perturbation theory. Existing models typically use Gaussian or exponential forms to describe the Fi j(b), or a sum of Gaussian/exponential terms [27,28]. On the other hand, correlations in longitudinal momenta are typically ignored. The usual as”
Constraining MPI models using σeff and recent Tevatron and LHC Underlying Event data (2013, methodology): “The MPI model used in Herwig++ [24–27] has been reviewed several times.”
Factorization at the LHC: From parton distribution functions to initial state jets (2010, methodology): “In these event generators the corresponding effects should be described at leading order by the initial-state parton shower in conjunction with models for the underlying event [24, 60, 161, 162].”
Colour reconnections in Herwig++ (2012, methodology): “ia diers from the original development in some details and follows the idea of interleaved partonic interactions and showering [21,22]. In the recent releases of Herwig an MPI model is also included [23]. It comes with two main parameters, the minimum transverse momentum pmin ? of the additional har”
General-purpose event generators for LHC physics (2011, methodology): “In addition to the hadronization of partonic final states, the implementation of the model in Herwig++ can also handle stable coloured particles or baryon number violating vertices, which both occur in BSM models.”
Jet energy resolution in proton-proton collisions at sqrt(s) = 7 TeV recorded in 2010 with the ATLAS detector (2012, background): “The underlying event and soft inclusive interactions use hard and soft multiple partonic interaction models [30].”