“…The cross section and the kinematic properties of the events predicted by the \textsc{MadGraph} event generator interfaced with \textsc{pythia} for the parton shower are compared with the data for b jets with $p_{\mathrm{T}} > 25$ GeV and $|\eta| < 2.1$. …”
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“…The measured values are comparable to those predicted by {\sc{pythia}} simulation. The PbPb b-jet fraction is also compatible with the pp b-jet fraction, within sizeable uncertainties. …”
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“…In particular, simulations based on PYTHIA show a large deficit when compared with experimental observations in some specific kinematic configurations.…”
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“…The particle production is also studied in jets from pp collisions at 7 TeV and the results are well described by Perugia-0 tune of PYTHIA6.…”
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“…Such effects have usually been connected to conservation laws in $e^{+}e^{-}$ collisions and were thought to be under theoretical control; however, our results present a challenge to the contemporary models (PYTHIA, PHOJET). This surprising effect is further interpreted in the context of baryon production mechanisms in the fragmentation process.…”
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“…The results are compared to theoretical predictions from Sherpa, Pythia and GoSam.…”
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“…Tree-level plus parton-shower predictions from Sherpa and Pythia as well as next-to-leading-order QCD predictions from Jetphox and Sherpa are compared to the measurements.…”
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“…All signal and relevant background events are generated in MadGraph5_aMC@NLO and passed through PYTHIA 8 for parton showering and hadronization at parton level. …”
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“…The following study was performed on a Powheg+Pythia8 Z boson production sample, where the Z boson was forced to decay to two muons. …”
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“…Finally, the results are compared to the born level of the signal \texttt{POWHEG-BOX}+\texttt{PYTHIA~8} MC. Overall, the theory and unfolded cross section are in good agreement, with the exception of the first $m_T^W$ bin, ranging from $130-170\,$GeV, where an underestimation in the MC is visible. …”
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“…Measured cross-sections are compared to predictions from the Monte Carlo gen- erator (MADGRAPH5) based on leading-order (LO) or next-to-leading-order (NLO) matrix elements interfaced with pythia parton-shower simulation and evaluating several flavour approaches for the choice of initial-state partons. …”
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“…The measurements are compared with predictions from the PYTHIA 8 and EPOS LHC Monte Carlo event generators.…”
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“…These findings are compared to predictions from HIJING, EPOS-LHC, and PYTHIA8 models. The effect of the kinematical acceptance has also been investigated by examining the $\nu_{dyn}[+,-]$ dependence on transverse momentum range as well as the width of the pseudorapidity window. …”
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“…The differential cross-section in each observable is measured to be in good agreement with the theoretical prediction which uses the Madgraph5_aMC@NLO+Pythia8 Monte Carlo event generation. The measurements presented in this thesis achieve a significant improvement in precision with respect to the previous ATLAS measurements.…”
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“…. \\ The analysis has been performed using the PYTHIA 6.227 Monte-Carlo generator and the ATLAS fast simulation package ATLFAST. …”
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“…The results are found to be in good agreement with predictions made by Pythia Monte Carlo tuned to match the W and Z transverse momentum spectra observed in proton-antiproton collisions at p s = 1:96 TeV at the Tevatron. 125k W ! …”
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“…It is therefore essential to first reproduce the proton–proton collisions, using Monte Carlo event generators such as PYTHIA8 and DPMJET-III. This part of the simulation chain is discussed in Section 4.1.The particles originating from the proton–proton collisions interact with the detector and machine material, causing electromagnetic and hadronic showers which give rise to the complex radiation fields seen in the LHC experiments. …”
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“…We present here details of a new suite of codes for evaluating such effects, including a new treatment based on PYTHIA of the evolution of showers induced by hadronic decays of massive, unstable particles such as a gravitino. …”
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“…An extensive study with PYTHIA8 events generator has been done to explain the experimental data. …”
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“…Gluino R-hadron is chosen as an example of a candidate in this thesis, and cross sections and kinematic properties are obtained from PYTHIA simulations for various gluino masses (100-500 GeV/c$^2$). …”
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