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200 papers

We review the physics basis, main features and use of general-purpose Monte Carlo event generators for the simulation of proton-proton collisions at the Large Hadron Collider. Topics included are: the generation of hard-scattering matrix…

DPMJET is a Monte Carlo model for sampling of hadron-hadron, hadron-nucleus, nucleus-nucleus and neutrino-nucleus interactions at accelerator and Cosmic Ray energies according to the two-component Dual Parton Model. Here we describe new…

High Energy Physics - Phenomenology · Physics 2007-05-23 J. Ranft

We present the implementation of a next-to-leading-order plus parton-shower event generator for the hadronic production of a heavy charm quark accompanied by a leptonically-decaying $W$ boson in the POWHEG BOX RES framework. We consider…

High Energy Physics - Phenomenology · Physics 2023-08-16 Silvia Ferrario Ravasio , Carlo Oleari

We report on the implementation of an interface between the SANC generator framework for Drell-Yan hard processes, which includes next-to-leading order electroweak (NLO EW) corrections, and the Herwig++ and Pythia8 QCD parton shower Monte…

High Energy Physics - Phenomenology · Physics 2015-05-20 P. Richardson , R. R. Sadykov , A. A. Sapronov , M. H. Seymour , P. Z. Skands

We present a new model for soft interactions in the event-generator Herwig. The model consists of two components. One to model diffractive final states on the basis of the cluster hadronization model and a second component that addresses…

High Energy Physics - Phenomenology · Physics 2017-04-05 Stefan Gieseke , Frashër Loshaj , Patrick Kirchgaeßer

The optimisation (tuning) of the free parameters of Monte Carlo event generators by comparing their predictions with data is important since the simulations are used to calculate experimental efficiency and acceptance corrections, or…

High Energy Physics - Phenomenology · Physics 2023-11-07 Salvatore La Cagnina , Kevin Kröninger , Stefan Kluth , Andrii Verbytskyi

We introduce a twiki page with collections of generated Monte Carlo event samples in proton-proton collisions at LHC energies including a heavy quark-antiquark pair in the final state. These samples are generated with the POWHEG method and…

High Energy Physics - Phenomenology · Physics 2011-11-08 M. V. Garzelli , Adam Kardos , Zoltán Trócsányi

I show that with simple extensions of the shower algorithms in Monte Carlo programs, one can implement NLO corrections to the hardest emission that overcome the problems of negative weighted events found in previous implementations. Simple…

High Energy Physics - Phenomenology · Physics 2011-05-05 Paolo Nason

This paper presents the method of combining parton shower formalism with perturbative calculations (matrix elements) in form of a Monte-Carlo algorithm for the process g g -> Z b anti-b,consistenlty including the heavy quark masses and…

High Energy Physics - Phenomenology · Physics 2008-11-26 B. P. Kersevan , I. Hinchliffe , L. Mijovic

We implement matrix-element corrections to HERWIG parton shower simulations for Standard Model Higgs boson production at hadron colliders. We study the Higgs transverse momentum distribution and compare different versions of HERWIG and…

High Energy Physics - Phenomenology · Physics 2009-11-10 Gennaro Corcella , Stefano Moretti

I review recent developments in POWHEG, a method for interfacing parton-shower generators with NLO QCD computations. I illustrate recent progress in understanding several features of the method, and in clarifying similarity and differences…

High Energy Physics - Phenomenology · Physics 2010-01-18 P. Nason

We present results for the Higgsstrahlung process within the GENEVA Monte Carlo framework. We combine the fully differential NNLO calculation with the higher-order resummation in the 0-jettiness resolution variable (beam-thrust). The…

High Energy Physics - Phenomenology · Physics 2019-11-27 Simone Alioli , Alessandro Broggio , Stefan Kallweit , Matthew A. Lim , Luca Rottoli

The fast Monte Carlo procedure of hadron generation developed in our previous work is extended to describe noncentral collisions of nuclei. We consider different possibilities to introduce appropriate asymmetry of the freeze-out…

High Energy Physics - Phenomenology · Physics 2008-11-26 N. S. Amelin , R. Lednicky , I. P. Lokhtin , L. V. Malinina , A. M. Snigirev , Iu. A. Karpenko , Yu. M. Sinyukov , I. Arsene , L. Bravina

An upgraded version of the package [BCVEGPY2.0: Chao-Hsi Chang, Jian-Xiong Wang and Xing-Gang Wu, Comput. Phys. Commun. {\bf 174} (2006) 241-251] is presented, which works under LINUX system and is named as BCVEGPY2.1. Using this version…

High Energy Physics - Phenomenology · Physics 2008-11-26 Chao-Hsi Chang , Jian-Xiong Wang , Xing-Gang Wu

In this contribution we describe a new model of multiple partonic interactions that has been implemented in Herwig++. Tuning its two free parameters we find a good description of CDF underlying event data. We show extrapolations to the LHC…

High Energy Physics - Phenomenology · Physics 2008-06-27 Manuel Bähr , Stefan Gieseke , Michael H. Seymour

Despite its many advantages, the sensible application of the Hybrid Monte Carlo (HMC) method is often hindered by the presence of large - or even infinite - potential barriers. These potential barriers partition the configuration space into…

Strongly Correlated Electrons · Physics 2025-07-23 Finn Temmen , Evan Berkowitz , Anthony Kennedy , Thomas Luu , Johann Ostmeyer , Xinhao Yu

This paper is a follow-up of Ref.~\cite{Ravasio:2018lzi}, where we studied the impact of next-to-leading order calculations merged with parton shower generators (NLO+PS) of increasing accuracy in the extraction of the top mass at hadron…

High Energy Physics - Phenomenology · Physics 2020-01-08 Silvia Ferrario Ravasio , Tomas Jezo , Paolo Nason , Carlo Oleari

A sensible application of the Hybrid Monte Carlo (HMC) method is often hindered by the presence of large - or even infinite - potential barriers. These potential barriers separate the configuration space into distinct sectors and can lead…

Strongly Correlated Electrons · Physics 2025-08-06 Finn L. Temmen , Evan Berkowitz , Anthony Kennedy , Thomas Luu , Johann Ostmeyer , Xinhao Yu

We present an implementation of the calculation of the production of W^+W^+ plus two jets at hadron colliders, at next-to-leading order (NLO) in QCD, in the POWHEG framework, which is a method that allows the interfacing of NLO calculations…

High Energy Physics - Phenomenology · Physics 2015-05-27 Tom Melia , Paolo Nason , Raoul Rontsch , Giulia Zanderighi