Results 31 to 40 of about 35,945 (210)
Cutoff dependence of the thrust peak position in the dipole shower
European Physical Journal C: Particles and Fields, 2020 We analyse the dependence of the peak position of the thrust distribution on the cutoff value in the Nagy–Soper dipole shower. We compare the outcome of the parton shower simulations to a relation of the dependence from an analytic computation, derived ...
Robin Baumeister, Stefan Weinzierl
doaj +1 more source
TMD parton distributions from parton showers [PDF]
Proceedings 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
Multiplicative-accumulative matching of NLO calculations with parton showers
Journal of High Energy Physics, 2022 We propose a new approach for combining next-to-leading order (NLO) and parton shower (PS) calculations so as to obtain three core features: (a) applicability to general showers, as with the MC@NLO and POWHEG methods; (b) positive-weight events, as with ...
Paolo Nason, Gavin P. Salam
doaj +1 more source
PARTON SHOWERS AND MULTIJET EVENTS [PDF]
Fundamental and Applied Aspects of Modern Physics, 2001 A Monte-Carlo event-generator has been developed which is dedicated to simulate electron-positron annihilations. Especially a new approach for the combination of matrix elements and parton showers ensures the independence of the hadronization parameters from the CMS energy.
Kuhn, R. +3 more
openaire +2 more sources
Physical Review D, 2016 We report on the possibility of reweighting parton-shower Monte Carlo predictions for scale variations in the parton-shower algorithm. The method is based on a generalization of the Sudakov veto algorithm. We demonstrate the feasibility of this approach using example physical distributions.
Bellm, Johannes +4 more
openaire +4 more sources
An analytic initial-state parton shower [PDF]
Journal of High Energy Physics, 2012 Abstract We present a new algorithm for an analytic parton shower. While the algorithm for the final-state shower has been known in the literature, the construction of an initialstate shower along these lines is new. The aim is to have a parton shower algorithm for which the full analytic form of the probability distribution for ...
Kilian, W. +3 more
openaire +4 more sources
Top quark pair production in association with a jet with NLO parton showering [PDF]
, 2011 We compute the production cross section of a top-antitop pair in association with a jet at hadron colliders at next-to-leading order accuracy matched with parton shower algorithms to make predictions at the hadron level.
Adam Kardos +38 more
core +2 more sources
European Physical Journal C: Particles and Fields, 2020 A new release of the Monte Carlo event generator Herwig (version 7.2) is now available. This version introduces a number of improvements over the major version 7.0, notably: multi-jet merging with the dipole shower at LO and NLO QCD; spin correlations in
Johannes Bellm +18 more
doaj +1 more source
NNLOPS description of the H→ b b ¯ $$ b\overline{b} $$ decay with MiNLO
Journal of High Energy Physics, 2020 We present an event generator that describes the Higgs boson decay into b-quarks at next-to-next-to-leading-order (NNLO) in QCD and allows for a consistent matching to parton shower.
Wojciech Bizoń +2 more
doaj +1 more source
Hadronic decays of Higgs boson at NNLO matched with parton shower
Journal of High Energy Physics, 2021 We present predictions for hadronic decays of the Higgs boson at next-to-next-to-leading order (NNLO) in QCD matched with parton shower based on the POWHEG framework.
YaLu Hu +3 more
doaj +1 more source