Colour reconnections in Herwig++

By S. Gieseke, C. Röhr, A. Siódmok. The European Physical Journal C, 2012

305 citations recorded by the source corpus.

We describe the implementation details of the colour reconnection model in the event generator Herwig++. We study the impact on final-state observables in detail and confirm the model idea from colour preconfinement on the basis of studies within the cluster hadronization model. Moreover, we show that the description of minimum bias and underlying event data at the LHC is improved with this model and present results of a tune to available data.

Subfields: Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/ca56330ec88193feb2896bd407cef4d36155de7a

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Nuclear and High Energy Physics

Citations in the corpus

String formation beyond leading colour (2015, methodology): “, [58–64] for experimental methods and [65] for a recent phenomenology review) can be significantly affected by colour reconnections1, several toy models have appeared [47, 57, 68–71], relying mainly on potential-energy minimisation arguments to reconfigure the partonic colour connections for hadron”
Constraining MPI models using σeff and recent Tevatron and LHC Underlying Event data (2013, unknown): “[13], with reconnection probability preco is applied.”
Les Houches 2015: Physics at TeV Colliders Standard Model Working Group Report (2016, background): “1, with improved modeling of underlying event [477] and the most recent UE-EE-5-MRST tune [478], which is able to describe the double-parton scattering cross section [479] and underlying event data from √ s = 300 GeV to √ s = 7 TeV.”
Les Houches 2017: Physics at TeV Colliders Standard Model Working Group Report (2017, methodology): “Overall, there is excel8This uses the MMHT 2014 PDFs sets [601], the angular-ordered parton shower [702], default settings for the cluster hadronization model [703], a Multiple Parton Interaction model [704–706], and plain color reconnections [707].”
Search for squarks and gluinos in events with isolated leptons, jets and missing transverse momentum at $\sqrt{s}=8$ TeV with the ATLAS detector (2015, methodology): “The ATLAS underlying-event tune AUET2 is used [56] for Madgraph 5 and Pythia 6 samples while the CTEQ6L1-UE-EE-3 tune [57] is used for Herwig++ samples.”
A new method to distinguish hadronically decaying boosted Z bosons from W bosons using the ATLAS detector (2015, unknown): “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] underlying-event tune.”
Systematics of quark/gluon tagging (2017, methodology): “e potential impact of the color reconnection model, which is also important for the Herwig generator described next. Our Herwig baseline uses version 2.7.1, with improved modeling of underlying event [103] and the most recent UE-EE-5-MRST tune [104], which is able to describe the double-parton scatt”
Searches for heavy long-lived charged particles with the ATLAS detector in proton-proton collisions at s=8\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\odds (2014, background): “The GMSB samples are generated, using Herwig++ [49] v. 2.5.2 along with the UEEE3 [50] tune and the CTEQ6L1 [51] parton distribution function (PDF) set, with the following model parameters: number of super-multiplets in the messenger sector, N5 = 3, messenger mass scale, mmessenger = 250 TeV, sign o”
Jet energy scale measurements and their systematic uncertainties in proton-proton collisions at √s=13 TeV with the ATLAS detector (2017, unknown): “Herwig++ simulates additional radiation through angle-ordered parton showers, and is configured with the UE-EE-5 event tune [31].”
Jet energy scale and resolution in the CMS experiment in pp collisions at 8 TeV (2016, methodology): “The Z+jet and multijet samples are generated with the MADGRAPH 4 [25] program matched with parton showers simulated by PYTHIA 6.4 tune Z2*. Additional samples for systematic uncertainty studies are available for QCD dijet and Z+jet processes, both generated with HERWIG++ 2.3 [21], tune EE3C [22].”
Search for Higgs boson pair production in the γ γ bb¯ final state with 13 TeV pp collision data collected by the ATLAS experiment (2018, methodology): “This is either Herwig++ with the CTEQ6L1 parton distribution function (PDF) set [36] using the UEEE5 set of tuned parameters [37] or Pythia 8 with the NNPDF 2.”