Results 51 to 60 of about 36,180 (205)

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

Parton distribution functions in the context of parton showers [PDF]

open access: yes, 2014
When the initial state evolution of a parton shower is organized according to the standard "backward evolution'' prescription, ratios of parton distribution functions appear in the splitting probabilities.
Nagy, Zoltan, Soper, Davison E.
core   +2 more sources

Interleaved parton showers and tuning prospects [PDF]

open access: yesJournal of High Energy Physics, 2011
General-purpose Monte Carlo event generators have become important tools in particle physics, allowing the simulation of exclusive hadronic final states. In this article we examine the Pythia 8 generator, in particular focusing on its parton-shower algorithms.
Corke, Richard, Sjöstrand, Torbjörn
openaire   +2 more sources

Evolution of parton showers and parton distribution functions [PDF]

open access: yesPhysical Review D, 2020
Initial state evolution in parton shower event generators involves parton distribution functions. We examine the probability for the system to evolve from a higher scale to a lower scale without an initial state splitting. A simple argument suggests that this probability, when multiplied by the ratio of the parton distributions at the two scales ...
Zoltán Nagy, Davison E. Soper
openaire   +4 more sources

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

Evolution variable dependence of jet substructure [PDF]

open access: yes, 2015
Studies on jet substructure have evolved significantly in recent years. Jet substructure is essentially determined by QCD radiations and non-perturbative effects.
Sakaki, Yasuhito
core   +2 more sources

Parton Showers

open access: yes, 2022
DIS2022 conference ...
openaire   +1 more source

Logarithmic accuracy of angular-ordered parton showers [PDF]

open access: yesJournal of High Energy Physics, 2020
Abstract We study the logarithmic accuracy of angular-ordered parton showers by considering the singular limits of multiple emission matrix elements. This allows us to consider different choices for the evolution variable and propose a new choice which has both the correct logarithmic behaviour and improved performance away from ...
Bewick, G   +3 more
openaire   +4 more sources

Matrix-Element Corrections to Parton Shower Algorithms [PDF]

open access: yes, 1994
We discuss two ways in which parton shower algorithms can be supplemented by matrix-element corrections to ensure the correct hard limit: by using complementary phase-space regions, or by modifying the shower itself.
Adeva   +13 more
core   +2 more sources

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

Home - About - Disclaimer - Privacy