Herwig++ physics and manual

By M. Bähr, S. Gieseke, M. Gigg, David Grellscheid, K. Hamilton, O. Latunde-Dada, Simon Plätzer, P. Richardson, M. Seymour, A. Sherstnev and 1 more. 2008

2,587 citations recorded by the source corpus.

AbstractIn this paper we describe $\mathsf{Herwig++}$ version 2.2, a general-purpose Monte Carlo event generator for the simulation of hard lepton-lepton and hadron-hadron collisions. A number of important hard scattering processes are available, together with an interface via the Les Houches Accord to specialized matrix element generators for additional processes. The simulation of Beyond the Standard Model (BSM) physics includes a range of models and allows new models to be added by encoding the Feynman rules of the model. The parton-shower approach is used to simulate initial- and final-state QCD radiation, including colour coherence effects, with special emphasis on the correct description of radiation from heavy particles. The underlying event is simulated using an eikonal multiple parton-parton scattering model. The formation of hadrons from the quarks and gluons produced in the parton shower is described using the cluster hadronization model. Hadron decays are simulated using matrix elements, where possible including spin correlations and off-shell effects.

Subfields: Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/1bc311235ad87f98cad4acd456144b1c5743ab38

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In Nuclear and High Energy Physics

Citations in the corpus

Factorization at the LHC: From PDFs to Initial State Jets (Ph.D. thesis) (2009, methodology): “One should ask whether the description of the initial state by beam functions, as well as their interplay with the soft radiation, are properly captured by current Monte Carlo event generators used to simulate events at the LHC and Tevatron, such as Pythia [36, 37] and Herwig [38, 39].”
Measurement of the Z+b-jet cross-section in pp collisions at s$$ \sqrt{s} $$ = 7 TeV in the forward region (2014, methodology): “The systematic uncertainty associated to final-state radiation is obtained by direct comparison to the simulation described above and an additional simulation, using HERWIG++ [25], as in Ref.”
A new method to distinguish hadronically decaying boosted Z bosons from W bosons using the ATLAS detector (2015, neutral): “Additional samples are produced with HERWIG++ [14], which uses angular ordering of the parton showers [15], a cluster model for hadronization [16], as well as the EE3 [17] underlyingevent tune.”
Jet energy scale measurements and their systematic uncertainties in proton-proton collisions at √s=13 TeV with the ATLAS detector (2017, neutral): “The multijet systematic uncertainties are studied using the Herwig++ 2.7 [28,29] generator, with the 2 → 2 matrix element convolved with the CTEQ6L1 PDF set [30].”
Pileup mitigation at CMS in 13 TeV data (2020, background): “1 [24, 25] with the UE-EE-5C underlying event tune [26] to assess systematic uncertainties related to the modeling of the parton showering and hadronization.”
Herwig 7.0/Herwig++ 3.0 release note (2015, methodology): “We have presented version 7.0 of the Herwig event generator, based on previous Herwig++ development and the experience gained with the HERWIG event generator.”
Boosted objects and jet substructure at the LHC. Report of BOOST2012, held at IFIC Valencia, 23rd–27th of July 2012 (2013, positive): “170), and the LHC-UE-EE-4 [64] tune of Herwig++ [20,65] (version 2.”
Theoretical predictions for charm and bottom production at the LHC (2012, methodology): “Recently, MC subtraction terms have been computed which are relevant to the matching with Herwig++ [45] and, for processes that feature only initial-state emissions, with PYTHIA 6.”
Measurement of the forward Z boson production cross-section in pp collisions at s=7$$ \sqrt{s}=7 $$ TeV (2015, methodology): “The FSR correction is taken to be the mean of the corrections calculated with Herwig++ [63] and Pythia8 [25].”