Zbigniew Was

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Recently the collider physics community has seen significant advances in the formalisms and implementations of event generators. This review is a primer of the methods commonly used for the simulation of high energy physics events at particle colliders. We provide brief descriptions, references, and links to the specific computer codes which implement the(More)
Theoretical predictions in high energy physics are routinely provided in the form of Monte Carlo generators. Comparisons of predictions from different programs and/or different initialization set-ups are often necessary. MC-TESTER can be used for such tests of decays of intermediate states (particles or resonances) in a semi-automated way. Since 2002 new(More)
After developing a Resonance Chiral Lagrangian (RχL) model to describe hadronic τ lepton decays, the model was confronted with experimental data. This was accomplished by using a fitting framework that was developed to take into account the complexity of the model and to ensure numerical stability for the algorithms used in the fitting. Since the model used(More)
Recently version 2.14 of the PHOTOS Monte Carlo algorithm, written for bremsstrahlung generation in decays became available. In ref. [1], detailed instructions on how to use the program are given. With respect to older versions [2, 3] of PHOTOS, it now features: improved implementation of QED interference and multiple-photon radiation. The numerical(More)
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