A Brief Introduction to PACIAE 4.0
Abstract
Parton And-hadron China Institute of Atomic Energy (PACIAE) is a multipurpose Monte Carlo event generator developed to describe a wide range of high-energy collisions, including lepton-lepton, lepton-hadron, lepton-nucleus, hadron-hadron, hadron-nucleus, and nucleus-nucleus collisions. It is built based on the PYTHIA program, and incorporates parton and hadron cascades to address the nuclear medium effects. PACIAE 4.0 is the new generation of PACIAE model surpassing the version 3.0. In PACIAE 4.0, the old fixed-format FORTRAN 77 code has been refactored and rewritten by the free-format modern Fortran and C++ languages. The C++-based PYTHIA 8.3 is interfaced in, while previous versions connected to the Fortran-based PYTHIA 6.4 only. Several improvements are also introduced, which enable PACIAE 4.0 to contain more physics and features to model the high-energy collisions. This is the first attempt to transition PACIAE from Fortran to C++.
Keywords
Cite
@article{arxiv.2411.14255,
title = {A Brief Introduction to PACIAE 4.0},
author = {An-Ke Lei and Zhi-Lei She and Yu-Liang Yan and Dai-Mei Zhou and Liang Zheng and Wen-Chao Zhang and Hua Zheng and Larissa V. Bravina and Evgeny E. Zabrodin and Ben-Hao Sa},
journal= {arXiv preprint arXiv:2411.14255},
year = {2024}
}