Search 250 million research papers

Event Generator

Shigeru Odaka · 2010

Cited by 0

Event generator overview

Y Pang · University of North Texas Digital Library (University of North Texas) · 1997

Due to their ability to provide detailed and quantitative predictions, the event generators have become an important part of studying relativistic heavy ion physics and of designing future experiments. In this talk, the author will briefly summarize recent progress in developing event generators for the relativistic heavy ion collisions.

Cited by 0Open access

DIRAC event generator

Santamarina, C · CERN Document Server (European Organization for Nuclear Research) · 2004

DIRAC note 04-01This report is dedicated to calculate a value for the , and resolution of the DIRAC spectrometer.The procedure to perform the calculation is described next:

Cited by 0Open access

Event Pass Generator

Loimulahti, Mikko · Theseus (Ammattikorkeakoulujen) · 2012

The aim of this thesis was to produce an event pass generator. It can be used to print ID cards for participants of various events. Participant data is fetched from a database to produce print-ready PDF files with personified info on each card. The work was part of a larger project, Koululiikkuu Suomi event registra-tion system. The client for this work was Koululiikuntaliitto, KLL.
\nSince this product was integrated with Koululiikkuu Suomi, it uses same tech-nologies and tools. It is a web application and software development was done using iterative and incremental methodology.
\nThe work taught development of web application user interfaces, importance of frameworks for browser compatibility, and search and application of contempo-rary buzzwords when describing previously established working practices.

Cited by 0Open access

The XSCAPE Event Generator

Fries, Rainer · Figshare · 2023

A brief introduction to the JETSCAPE and XSCAPE event generators for high energy nuclear physics.

Cited by 0Open access

The WHIZARD event generator

Christian Weiß · DESY (CERN, DESY, Fermilab, IHEP, and SLAC) · 2015

Cited by 0Open access

The BABAYAGA event generator

Carloni-Calame, C M, Montagna, G, Nicrosini, O et al. · CERN Bulletin · 2003

The program BABAYAGA is an event generator for QED processes at flavour factories, mainly intended for luminosity measurement of e+ e- colliders in the center of mass range 1-10 GeV. Recently, the pi+ pi- channel has been added as well. The relevant (photonic) radiative corrections are simulated by means of a Parton Shower in QED. The theoretical precision of the approach is estimated and some phenomenological results are discussed.

Cited by 0

The Event Generator WHIZARD

Reuter, Juergen · DESY Publication Database (PUBDB) (Deutsches Elektronen-Synchrotron) · 2017

Cited by 0Open access

The LDC Event Generator

Gosta Gustafson Hamid, Hamid Kharraziha, Leif Lonnblad · 2007

: We describe briefly a Monte Carlo implementation of the Linked Dipole Chain model and an interface of it to the Ariadne program for simulation of complete DIS events at HERA. Using this new tool we make some preliminary comparisons to HERA data and find reasonable agreement. The Linked Dipole Chain model We here give a brief sketch of the properties of the Linked Dipole Chain (LDC) model, developed by the Lund group. A more detailed description is presented in Refs. [1, 2]. The model is a reformulation and generalization of the formalism developed by Ciafaloni, Catani, Marchesini and Fiorani (CCFM) [3], which interpolates smoothly between the DGLAP and BFKL regions. In the CCFM model there is a specific recipe, which for each possible final state specifies a separation of the produced gluons in what can be called initial-state and final-state radiation. The initial state radiation can be described by a ladder diagram as in Fig. 1. Each set of final states, specified by a definite la...

Cited by 0

The Pluto++ Event Generator.

I. Froehlich · 2009

Cited by 12Open access

The Pluto++ Event Generator

Fröhlich, I, Boado, L Cazon, Galatyuk, T et al. · CERN Bulletin · 2007

Pluto is a Monte-Carlo event generator designed for hadronic interactions from Pion production threshold to intermediate energies of a few GeV per nucleon, as well as for studies of heavy ion reactions. This report gives an overview of the design of the package, the included models and the user interface.

Cited by 0

The XSCAPE Event Generator

Fries, Rainer · Figshare · 2023

A brief introduction to the JETSCAPE and XSCAPE event generators for high energy nuclear physics.

Cited by 0Open access

Event Generator for R3B

S. Buller · Chalmers Publication Library (Chalmers University of Technology) · 2015

This thesis describes various models implemented in a code to simulate nuclear reactions that\ngo through a compound nucleus state, an intermediate excited state long lived enough that the\nnucleus has time to reach equilibrium between each subsequent decay. This implies that the\ndecay is effectively characterized by macroscopically conserved quantities such as the excitation\nenergy E and its spin J, in addition to the proton and neutron number, Z and N, respectively.\nSpecifically, the reactions under consideration are quasi-elastic scattering reactions, in which\nthe collision is modeled as taking place between essentially free nucleons or clusters in the target\nand projectile. A Feynman diagram formalism is used to describe this first, fast knock-out\nreaction. The unaffected nucleons in the projectile will then form an excited compound nucleus,\nand the final reaction products are determined by decaying this compound system.\nThe codes to simulate the initial fast reaction and subsequent decay are separate programs.\nResults are presented regarding the prefered decay modes of nuclei with a given excitation energy,\nutilizing the decay part of the code. The results obtained for an excitation energy of 20MeV\nwere compared with the output of another program, TALYS, for nuclei with Z 2 [10,90] and\nN 2 [10,130].\nFinally, the quasi-elastic scattering code and the compound nucleus deexcitation code were\ncoupled in order to allow the code to be used as an event generator. The output of the event\ngenerator was used in simulations to benchmark the performance of the addback algorithm used\nto determine gamma energies and multiplicites from actual experimental data. The tentative\nresults indicate that the addback algorithm is unable to identify the number of \n-rays emitted\nin the reaction, although further investigations are needed to arrive at a conclusive result.

Cited by 0Open access

GR@PPA Event Generator

S. Odaka · arXiv (Cornell University) · 2010

The history and the present status of the GR@PPA event generator are briefly reviewed. The development of GR@PPA started in 2000 in order to provide a framework of NLO event generators for hadron collision interactions. After the first release of the package (GR@PPA\_4b) in 2002, which supported four bottom quark production processes, many multi-particle production processes have been added to the package: GR@PPA\_ALL in 2004 and GR@PPA 2.7 in 2006. Now we are going to release a new package (GR@PPA 2.8), which supports single and double weak-boson production processes with an initial-state jet matching. Though the matrix elements presently included are still at the tree level, this new release is an important step towards constructing consistent NLO event generators.

Cited by 0Open access

The Event Generator WHIZARD

Reuter, Juergen · DESY Publication Database (PUBDB) (Deutsches Elektronen-Synchrotron) · 2018

Cited by 0Open access

Underlying Event Simulation in the Herwig++ Event Generator

M. Bähr · Repository KITopen (Karlsruhe Institute of Technology) · 2008

We study Quantum Chromodynamics (QCD) at hadron colliders. This is done in the context of general purpose Monte Carlo Event Generators. The aim of this thesis is to develop and implement a model for the so--called Underlying Event for the program Herwig++. We discuss multiple parton-parton scattering as source of the UE and show that our implementation is able to describe existing data from the Tevatron collider very well. Nevertheless we extend this model by a soft, non-perturbative component.

Cited by 2Open access

Universal Monte Carlo Event Generator

P. Ambrozewicz, Michelle Kuchera, Yaohang Li et al. · OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) · 2021

With the Jefferson Lab 12 GeV physics program underway and plans for the future Electron-Ion Collider (EIC), the nuclear physics community is entering a new era of exploration of QCD phenomena involving extensive data taking and event-level processing. This brings with it the potential for unprecedented access to multidimensional particle momentum distributions (PMDs) that can be connected to various theoretical frameworks by unfolding the emergent quantum mechanical properties of QCD using the PMDs. In practice, the PMDs are rendered as discretized histograms (typically one- or two-dimensional projections), and detector effects must be taken into account to unfold the pure detector effect-free PMDs that can be connected with theory. One of the challenges in this new era is obtaining faithful reconstructions of the multidimensional PMDs that preserve all of the inherent particle correlations. In this LDRD project we developed a novel approach using machine learning (ML) that solves this challenge, by avoiding entirely the need to use histograms as the main numerical technique to obtain the detector effect-free PMDs. The new approach is, moreover, scalable to higher dimensional PMDs. The central idea involves training neural networks (NNs) to generate synthetic event-level data (momenta 4-vectors of final state particles) to preserve all correlations among the particles. This is achieved by converting the trial synthetic vertex-level events to detector-level events using detector simulators. The NNs are then tuned using a specialized distance metric between the synthetic detector events and the real detector events.

Cited by 0Open access

Generator for Centauro Event Simulation

Gladysz-Dziadus, E, Kharlov, Yu V, Panagiotou, A D et al. · CERN Bulletin · 1998

We present a first generator of Centauro events based on the phenomenological model of Panagiotou et al. and show the quantitative consequences for kinematics, baryon number, mass and decay properties of the Centauro fireball and the strange quark matter fireball produced in ion collisions according to the Centauro event scenario.

Cited by 0

Event Generator Tuning Using HPC

A. Austin · OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) · 2023

SciDAC HEP Data Analytics on HPC

Cited by 0Open access

icecube/event-generator: Version 1.0.3

Huennefeld, Mirco · Zenodo (CERN European Organization for Nuclear Research) · 2023

Release Notes: patch to release 1.0.2 Changes: Update MCMC sampling machinery Add support for MCMC sampling via emcee package Adds Skyscanner module Module to fit sampled points to distributions on the sphere Option to turn off re-scaling of sampled pulse charges in Event-Generator simulation module

Cited by 0Open access