The Monte Carlo Program KoralW version 1.51 and The Concurrent Monte Carlo KoralW&YFSWW3 with All Background Graphs and First Order Corrections to W-Pair Production

Abstract

The version 1.51 of the Monte Carlo (MC) program KoralW for all $e^{+}{e}^{-}\to f_1{\bar{f}}_2{f}_3{\bar{f}}_4$ processes is presented. The most important change since the previous version 1.42 is the facility for writing MC events on the mass storage device and re-processing them later on. In the re-processing one may modify parameters of the Standard Model in order to fit them to experimental data. Another important new feature is a possibility of including complete $\mathcal{O}(\alpha )$ corrections to double-resonant W-pair component-processes in addition to all background (non-WW) graphs. The inclusion is done with the help of the YFSWW3 MC event generator for fully exclusive differential distributions (event-per-event). Technically, it is done in such a way that YFSWW3 runs concurrently with KoralW as a separate slave process, reading momenta of the MC event generated by KoralW and returning the correction weight to KoralW. KoralW introduces the $\mathcal{O}(\alpha )$ correction using this weight, and finishes processing the event (rejection due to total MC weight, hadronization, etc.). The communication between KoralW and YFSWW3 is done with the help of the FIFO facility of the UNIX/Linux operating system. This does not require any modifications of the FORTRAN source codes. The resulting Concurrent MC event generator KoralW&YFSWW3 looks from the user's point of view as a regular single MC event generator with all the standard features.

8 figures, 5 tables, submitted to Comput. Phys. Commun

Cited by in corpus (65)

• Event generation with SHERPA 1.1
• Electroweak Measurements in Electron-Positron Collisions at W-Boson-Pair Energies at LEP
• General-purpose event generators for LHC physics
• Electroweak corrections to charged-current e+e- --> 4 fermion processes - technical details and further results
• Soft Photon Radiation in Particle Decays in SHERPA
• Vector-boson pair production at the LHC to $\mathcal{O}({\alpha }^3)$ accuracy
• Tests of the Standard Model and Constraints on New Physics from Measurements of Fermion-Pair Production at 189-209 GeV at LEP
• Complete electroweak O(alpha) corrections to charged-current e+e- --> 4fermion processes
• Electroweak corrections to W-boson pair production at the LHC
• Precision calculation for e+ e- -> 2f: the KK MC project
• Tau and muon pair production cross-sections in electron-positron annihilations at sqrt{s} = 10.58 GeV
• Search for neutral Higgs bosons decaying into four taus at LEP2
• Event Generators for High-Energy Physics Experiments
• The Monte Carlo Event Generator YFSWW3 version 1.16 for W-Pair Production and Decay at LEP2/LC Energies
• Fermion pair production in e+e- collisions at 189-209 GeV and constraints on physics beyond the Standard Model
• Foam: A General-Purpose Cellular Monte Carlo Event Generator
• Measurement of charged current triple gauge boson couplings using W pairs at LEP
• Measurement of the W boson mass and width in e+e- collisions at LEP
• Measurement of the Mass and the Width of the W Boson at LEP
• Measurement of Triple-Gauge-Boson Couplings of the W Boson at LEP
• Constraints on Anomalous Quaric Gauge Boson Couplings from vv gamma gamma and qq gamma gamma events at LEP 2
• Measurement of the Cross Section of W-boson pair production at LEP
• Simulation of QED Radiation in Particle decays using the YFS Formalism
• Search for R-Parity Violating Decays of Scalar Fermions at LEP
• KK MC 4.22: CEEX EW Corrections for f\bar{f}\rightarrow f'\bar{f'} at LHC and Muon Colliders
• Four-fermion simulation at LEP2 in DELPHI
• WPHACT 2.0: A fully massive Monte Carlo generator for four fermion physics at e^+ e^- colliders
• NLO Electroweak Corrections to Multi-Boson Processes at a Muon Collider
• Search for an Invisibly-Decaying Higgs Boson at LEP
• A Study of W+W-gamma Events at LEP
• W Boson Polarisation at LEP2
• Investigation of Colour Reconnection in WW Events with the DELPHI detector at LEP-2
• Signature of 2HDM at Higgs Factories
• Measurement of the e+e- -> W+W- cross section and W decay branching fractions at LEP
• $\mathcal{KK}\text{MC-hh}$: Resummed Exact $\mathcal{O}({\alpha }^{2}L)$ EW Corrections in a Hadronic MC Event Generator
• Colour reconnection in e+e- -> W+W- at sqrt(s) = 189 - 209 GeV
• Probing Top-quark Operators with Precision Electroweak Measurements
• Long-range near-side correlation in $e^{+}{e}^{-}$ Collisions at 183-209 GeV with ALEPH Archived Data
• New Approach to Parton Shower MC's for Precision QCD Theory: HERWIRI1.0(31)
• On Theoretical Uncertainties of the W Boson Mass Measurement at LEP2
• QED challenges at FCC-ee precision measurements
• On Theoretical Uncertainties of the W Angular Distribution in W-Pair Production at LEP2 Energies
• Markovian Monte Carlo program EvolFMC v.2 for solving QCD evolution equations
• QED Exponentiation for quasi-stable charged particles: the $e^{-}{e}^{+}\to W^{-}{W}^{+}$ process
• Search for Higgs bosons decaying to WW in e+e- collisions at LEP
• Measurement of Neutral-Current Four-Fermion Production at LEP2
• Physics of W bosons at LEP
• Electroweak corrections uncertainty on the W mass measurement at LEP
• Running of the Cosmological Constant and Estimate of its Value in Quantum General Relativity
• New Approach to Hard Corrections in Precision QCD for LHC and FCC Physics
• Precision predictions for W-pair production at LEP2
• Interplay between IR-Improved DGLAP-CS Theory and the Precision of an NLO ME Matched Parton Shower MC in Relation to LHCb Data
• Localized $4\sigma$ and $5\sigma$ Dijet Mass Excesses in ALEPH LEP2 Four-Jet Events
• The Influence of the Experimental Methodology on the QED Theoretical Uncertainties on the Measurement of the W-Boson Mass at LEP
• YFS Resummation for Future Lepton-Lepton Colliders in SHERPA
• CEEX Exponentiation in QED
• QCD soft gluon exponentiation: YFS MC Approach
• Monte Carlo Event Generators
• IR-Improved Amplitude-Based Resummation in Quantum Field Theory: New Results and New Issues
• Chinese Magic in Loop Integrals
• Monte Carlo Event Generators for Future Lepton Colliders
• Precision Theory of Electroweak Interactions
• Automated calculation of matrix elements and physics motivated observables
• Precision W-pair physics with the YFSWW3 and KoralW Monte Carlos
• Prediction for the Cosmological Constant in Resummed Quantum Gravity and Constraints on SUSY GUT's