Results 51 to 60 of about 60,569 (196)

Measurement of double-parton scattering in inclusive production of four jets with low transverse momentum in proton-proton collisions at s $$ \sqrt{s} $$ = 13 TeV

open access: yesJournal of High Energy Physics, 2022
A measurement of inclusive four-jet production in proton-proton collisions at a center-of-mass energy of 13 TeV is presented. The transverse momenta of jets within |η| < 4.7 are required to exceed 35, 30, 25, and 20 GeV for the first-, second-, third ...
The CMS collaboration   +2347 more
doaj   +1 more source

Parton Showers

open access: yes, 2022
DIS2022 conference ...
openaire   +2 more sources

PanScales parton showers for hadron collisions: formulation and fixed-order studies

open access: yesJournal of High Energy Physics, 2022
We formulate PanScales parton showers for hadron collisions so as to achieve next-to-leading logarithmic (NLL) accuracy across a broad set of observables. We do so specifically for colour singlet production. Relative to the existing PanScales final-state
Melissa van Beekveld   +5 more
doaj   +1 more source

Sector showers for hadron collisions

open access: yesJournal of High Energy Physics, 2020
In conventional parton showers (including ones based on dipoles/antennae), a given (Born + m)-parton configuration can typically be reached via O(m!) different “shower histories”.
Helen Brooks   +2 more
doaj   +1 more source

QCD JETS AND PARTON SHOWERS [PDF]

open access: yesGribov-80 Memorial Volume, 2011
I discuss the calculation of QCD jet rates in e+e- annihilation as a testing ground for parton shower simulations and jet finding algorithms.
openaire   +2 more sources

Drell-Yan Production Using a New Approach PDF2ISR in the PYTHIA Event Generator [PDF]

open access: yesEPJ Web of Conferences
We present PDF2ISR, a new method for constructing an initial partem shower consistent with parton densities, applied to Drell-Yan production. Implemented in the PYTHIA8 event generator, it incorporates the Parton Branching framework to modify the initial-
Subotić Dušan   +2 more
doaj   +1 more source

Coherent parton showers with local recoils [PDF]

open access: yesJournal of High Energy Physics, 2011
We outline a new formalism for dipole-type parton showers which maintain exact energy-momentum conservation at each step of the evolution. Particular emphasis is put on the coherence properties, the level at which recoil effects do enter and the role of transverse momentum generation from initial state radiation.
Plätzer, Simon, Gieseke, Stefan
openaire   +3 more sources

TMD parton distributions from parton showers [PDF]

open access: yesProceedings of XXVII International Workshop on Deep-Inelastic Scattering and Related Subjects — PoS(DIS2019), 2019
We present the determination of Transverse Momentum Dependent (TMD) parton distributions from Monte Carlo parton showers. We investigate the effective TMD distributions obtained from the PYTHIA8 and HERWIG6 parton showers and compare them to the TMD distributions determined within the Parton Branching method.
Schmitz, Melanie   +3 more
openaire   +3 more sources

Implementing NLO DGLAP evolution in parton showers

open access: yesJournal of High Energy Physics, 2017
We present a parton shower which implements the DGLAP evolution of parton densities and fragmentation functions at next-to-leading order precision up to effects stemming from local four-momentum conservation.
Stefan Höche   +2 more
doaj   +1 more source

A new approach to color-coherent parton evolution

open access: yesJournal of High Energy Physics, 2023
We present a simple parton-shower model that replaces the explicit angular ordering of the coherent branching formalism with a differentially accurate simulation of soft-gluon radiation by means of a non-trivial dependence of the splitting functions on ...
Florian Herren   +4 more
doaj   +1 more source

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