A brief introduction to PYTHIA 8.1
A brief introduction to PYTHIA 8.1
复制标题
DOI：
10.1016/j.cpc.2008.01.036
复制
发表时间：
2008-06-01
影响因子：
6.3
通讯作者：
Skands, Peter
中科院分区：
文献类型：
--
作者：
Sjoestrand, Torbjoern;Mrenna, Stephen;Skands, Peter
PYTHIA计划是一个标准的工具，用于产生高能碰撞，包括一套连贯的物理模型，用于从少体硬过程演变到复杂的多强子最终状态。它包含了一个硬过程和模型库的初始和最终状态部分子簇射，多个部分子-部分子相互作用，束残留，弦碎裂和粒子衰变。它也有一组实用程序和外部程序的接口。虽然以前的版本是用Fortran编写的，但PYTHIA 8代表了C++的完全重写。当前版本是此转换后的第一个主要版本，并且尚未在各个方面取代旧代码。另一方面，它确实包含了一些新的物理学方面，这应该使它成为一个有吸引力的选择，特别是对于LHC物理学研究。
The PYTHIA program is a standard tool for the generation of high-energy collisions, comprising a coherent set of physics models for the evolution from a few-body hard process to a complex multihadronic final state. It contains a library of hard processes and models for initial-and final-state parton showers, multiple parton-parton interactions, beam remnants, string fragmentation and particle decays. It also has a set of utilities and interfaces to external programs. While previous versions were written in Fortran, PYTHIA 8 represents a complete rewrite in C++. The current release is the first main one after this transition, and does not yet in every respect replace the old code. It does contain some new physics aspects, on the other hand, that should make it an attractive option especially for LHC physics studies.