KK
The precision Monte Carlo event generator KK for two-fermion final states in $e^+ e^-$ collisions. We present the Monte Carlo event generator đť’¦đť’¦ version 4.13 for precision predictions of the electroweak standard model for the process e + e - â†’ff ÂŻ+nÎł, f=ÎĽ,Ď„,d,u,s,c,b, at centre-of-mass energies from Ď„ lepton threshold to 1 TeV, that is for LEP, SLC, future linear colliders, b, c, Ď„-factories, etc. Effects due to photon emission from initial beams and outgoing fermions are calculated in QED up to second-order, including all interference effects, within Coherent Exclusive Exponentiation (CEEX), which is based on Yennie-Frautschi-Suura exponentiation. Electroweak corrections are included in first order, with higher-order extensions, using the DIZET 6.21 library. Final-state quarks hadronize according to the parton shower model using JETSET. Beams can be polarized longitudinally and transversely. Decay of the Ď„ leptons is simulated using the TAUOLA library, taking into account spin polarization effects as well. In particular the complete spin correlations density matrix of the initial-state beams and final state Ď„â€™s is incorporated in an exact manner. Effects due to beamstrahlung are simulated in a realistic way. The main improvements with respect to KORALZ are: (a) inclusion of the initial-final state QED interference, (b) inclusion of the exact matrix element for two photons, and (c) inclusion of the transverse spin correlations in Ď„ decays (as in KORALB).
Keywords for this software
References in zbMATH (referenced in 8 articles )
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Sorted by year (- Jadach, S.; PĹ‚aczek, W.; Skrzypek, M.; StokĹ‚osa, P.: Markovian Monte Carlo program EvolFMC v.2 for solving QCD evolution equations (2010)
- SablonniĂ¨re, P.: A quadrature formula associated with a univariate spline quasi interpolant (2007)
- Gazeau, Jean-Pierre; MasĂˇkovĂˇ, Zuzana; PelantovĂˇ, Edita: Nested quasicrystalline discretisations of the line (2006)
- Jadach, S.: CEEX exponentiation in QED (2003)
- Jadach, S.; PĹ‚aczek, W.; Skrzypek, M.; Ward, B.F.L.; WÄ…s, Z.: 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 (2001)
- Jadach, S.; PĹ‚aczek, W.; Skrzypek, M.; Ward, B.F.L.; WÄ…s, Z.: The Monte Carlo event generator YFSWW3 version 1. 16 for $W$-pair production and decay at LEP2/LC energies (2001)
- Jadach, S.: Foam: Multi-dimensional general purpose Monte Carlo generator with self-adapting simplical grid (2000)
- Jadach, S.; Ward, B.F.L.; WÄ…s, Z.: The precision Monte Carlo event generator $\calKK$ for two-fermion final states in $e^+ e^-$ collisions (2000)