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PHOTOS Monte Carlo: a precision tool for QED corrections in Z and W decays

Piotr Golonka·Zbigniew Was
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Abstract

We present a discussion of the precision for the PHOTOS Monte Carlo algorithm, with improved implementation of QED interference and multiple-photon radiation. The main application of PHOTOS is the generation of QED radiative corrections in decays of any resonances, simulated by a "host" Monte Carlo generator. By careful comparisons automated with the help of the MC-TESTER tool specially tailored for that purpose, we found that the precision of the current version of PHOTOS is of 0.1% in the case of Z and W decays. In the general case, the precision of PHOTOS was also improved, but this will not be quantified here.

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Piotr Golonka, Zbigniew Was. 2005-06-14. PHOTOS Monte Carlo: a precision tool for QED corrections in Z and W decays. https://doi.org/10.1140/epjc%2Fs2005-02396-4

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