Results 101 to 110 of about 60,783 (196)

Resonance-aware parton-shower matching for off-shell top–antitop production with semi-leptonic decays at electron–positron colliders

open access: yesJournal of High Energy Physics
We present full off-shell NLO corrections in QCD obtained with the MoCaNLO code matched to parton shower. A resonance-aware matching procedure has been devised for the MC@NLO method tuned to the Catani-Seymour dipole subtraction.
Ansgar Denner   +3 more
doaj   +1 more source

Measurement of the production cross section of prompt J/ψ mesons in association with a W± boson in pp collisions at p s = 7 TeV with the ATLAS detector [PDF]

open access: yes, 2014
The process pp → W±J/ψ provides a powerful probe of the production mechanism of charmonium in hadronic collisions, and is also sensitive to multiple parton interactions in the colliding protons.
Farrington, Sinead   +6 more
core   +1 more source

Fluctuations and entropy indices of QCD parton showers [PDF]

open access: yesPhysical Review D, 1996
8 pages, LaTex, 12 figures in a single postscript file, submitted to Phys. Rev. D.
Cao, Zhen, Hwa, Rudolph C.
openaire   +3 more sources

Logarithmic accuracy of parton showers: a fixed-order study

open access: yesJournal of High Energy Physics, 2018
We formulate some first fundamental elements of an approach for assessing the logarithmic accuracy of parton-shower algorithms based on two broad criteria: their ability to reproduce the singularity structure of multi-parton matrix elements, and their ...
Mrinal Dasgupta   +4 more
doaj   +1 more source

Multi-jet production in deep inelastic scattering with Pythia

open access: yesJournal of High Energy Physics
We introduce multi-jet merging for deep inelastic scattering in the Vincia parton shower in the Monte Carlo event generator Pythia 8. Merging combines event samples of different parton multiplicities with logarithmically enhanced parton-shower radiation.
Ilkka Helenius   +2 more
doaj   +1 more source

On parton showers and multi parton interaction

open access: yes, 2016
In high energy hadron-hadron collisons (like for example at LHC) Drell Yan processes are important. For a precise determination of the inclusive crosssection higher order calculations must be taken into account. In the region of phase space near threshold (where soft gluon emission dominates) largedouble logarithmic corrections become important.
openaire   +3 more sources

A partitioned dipole-antenna shower with improved transverse recoil

open access: yesJournal of High Energy Physics
The implementation of a new final-state parton-shower algorithm in the Pythia event generator is described. The shower algorithm, dubbed Apollo, combines central aspects of the Vincia antenna shower with the global transverse-recoil scheme of the Alaric ...
Christian T Preuss
doaj   +1 more source

Alaric parton shower for hadron colliders [PDF]

open access: yes
We introduce the alaric parton shower for simulating quantum chromodynamics (QCD) radiation at hadron colliders and present numerical results from an implementation in the event generator sherpa. alaric provides a consistent framework to quantify certain
Höche, Stefan   +2 more
core   +1 more source

Reweighting QCD matrix-element and parton-shower calculations [PDF]

open access: yes, 2016
We present the implementation and validation of the techniques used to efficiently evaluate parametric and perturbative theoretical uncertainties in matrix-element plus parton-shower simulations within the Sherpa event-generator framework. By tracing the
Schumann, Steffen   +5 more
core   +2 more sources

On the dihadron angular correlations in forward pA collisions

open access: yesPhysics Letters B, 2018
Dihadron angular correlations in forward pA collisions have been considered as one of the most sensitive observables to the gluon saturation effects.
Anna Stasto   +3 more
doaj   +1 more source

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