Particle Event Generator: A Simple-in-Use System PEGASUS version 1.0
A.V. Lipatov, M.A. Malyshev, S.P. Baranov

TL;DR
PEGASUS is a user-friendly Monte Carlo event generator for high-energy QCD processes, incorporating transverse momentum dependent parton distributions, with flexible kinematic cuts and built-in visualization tools.
Contribution
It introduces a simple-to-use, versatile event generator that includes TMD parton distributions and off-shell amplitudes, with an intuitive interface and visualization capabilities.
Findings
Efficient calculation of cross sections for high-energy collisions.
Flexible implementation of kinematic cuts.
Built-in plotting for immediate result visualization.
Abstract
PEGASUS is a parton-level Monte-Carlo event generator designed to calculate cross sections for a wide range of hard QCD processes at high energy and collisions, which incorporates the dynamics of transverse momentum dependent (TMD) parton distributions in a proton. Being supplemented with off-shell production amplitudes for a number of partonic subprocesses and provided with necessary TMD gluon density functions, it produces weighted or unweighted event records which can be saved as a plain data file or a file in a commonly used Les Houches Event format. A distinctive feature of PEGASUS is an intuitive and extremely user friendly interface, allowing one to easily implement various kinematical cuts into the calculations. Results can be also presented "on the fly" with built-in tool \textsc{pegasus plotter}. A short theoretical basis is presented and detailed program…
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