Self-normalized yields of prompt and non-prompt J/ψ increase stronger than linearly with charged-particle multiplicity in pp collisions at 13 TeV, with stronger effect in the toward azimuthal region.
Tuning PYTHIA 8.1: the Monash 2013 Tune
9 Pith papers cite this work. Polarity classification is still indexing.
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abstract
We present an updated set of parameters for the PYTHIA 8 event generator. We reevaluate the constraints imposed by LEP and SLD on hadronization, in particular with regard to heavy-quark fragmentation and strangeness production. For hadron collisions, we combine the updated fragmentation parameters with a new NNPDF2.3 LO PDF set. We use minimum-bias, Drell-Yan, and underlying-event data from the LHC to constrain the initial-state-radiation and multi-parton-interaction parameters, combined with data from SPS and the Tevatron to constrain the energy scaling. Several distributions show significant improvements with respect to the current defaults, for both ee and pp collisions, though we emphasize that interesting discrepancies remain in particular for strange particles and baryons. The updated parameters are available as an option starting from PYTHIA 8.185, by setting Tune:ee = 7 and Tune:pp = 14.
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NLO QCD plus parton-shower matched implementation for VBF Higgs plus photon production, with studies showing small shower effects on Higgs observables and larger effects on sub-leading jets.
A deep neural network interpolates and extrapolates proton-proton reference transverse-momentum spectra to unmeasured center-of-mass energies using ALICE LHC data.
SemiCharmTag achieves a factor of ~4 signal-over-background improvement at 81% efficiency for Drell-Yan muons using secondary-vertex hadron tagging in LHCb proton-proton collision simulations.
The first measurement of charged-particle dijet invariant mass spectra shows no significant nuclear modification in p-Pb collisions at low masses.
NLO perturbative QCD calculations predict only a mild few-percent excess of antineutrons over antiprotons in pp collisions, not supporting the ~30% excess reported by NA49.
ALICE observes strong suppression of associated hadron yields per trigger photon in central Pb-Pb collisions at 5.02 TeV, extending the kinematic reach of photon-hadron correlation measurements.
PYTHIA 8.2 is a mature C++ event generator that combines hard processes, parton showers, multiparton interactions, and string fragmentation into a complete simulation framework for high-energy collisions.
citing papers explorer
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Multiplicity dependence of prompt and non-prompt J/$\psi$ production at midrapidity in pp collisions at $\sqrt{s} = 13$ TeV
Self-normalized yields of prompt and non-prompt J/ψ increase stronger than linearly with charged-particle multiplicity in pp collisions at 13 TeV, with stronger effect in the toward azimuthal region.
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NLO QCD and parton-shower effects for Higgs-boson production in association with a hard photon via vector-boson fusion
NLO QCD plus parton-shower matched implementation for VBF Higgs plus photon production, with studies showing small shower effects on Higgs observables and larger effects on sub-leading jets.
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DNN predictions for pp reference $p_\mathrm{T}$ spectra at unmeasured $\sqrt{s}$
A deep neural network interpolates and extrapolates proton-proton reference transverse-momentum spectra to unmeasured center-of-mass energies using ALICE LHC data.
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SemiCharmTag: a tool for Semileptonic Charm tagging
SemiCharmTag achieves a factor of ~4 signal-over-background improvement at 81% efficiency for Drell-Yan muons using secondary-vertex hadron tagging in LHCb proton-proton collision simulations.
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Dijet invariant mass of charged-particle jets in pp and p-Pb collisions at $\sqrt{s_{\rm NN}} = 5.02$ TeV
The first measurement of charged-particle dijet invariant mass spectra shows no significant nuclear modification in p-Pb collisions at low masses.
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Proton-Proton to Antinucleon Cross Sections for Cosmic Ray Applications
NLO perturbative QCD calculations predict only a mild few-percent excess of antineutrons over antiprotons in pp collisions, not supporting the ~30% excess reported by NA49.
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Measurement of isolated-prompt photon$-$hadron correlations in Pb$-$Pb collisions at $\mathbf{\sqrt{\textit{s}_{\rm NN}} = 5.02}$ TeV
ALICE observes strong suppression of associated hadron yields per trigger photon in central Pb-Pb collisions at 5.02 TeV, extending the kinematic reach of photon-hadron correlation measurements.
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An Introduction to PYTHIA 8.2
PYTHIA 8.2 is a mature C++ event generator that combines hard processes, parton showers, multiparton interactions, and string fragmentation into a complete simulation framework for high-energy collisions.
- Looking inside jets: an introduction to jet substructure and boosted-object phenomenology