Monte Carlo code parjet to simulate e+e--annihilation events via QCD jets

Title of program: PARJET
Catalogue Id: ACFR_v1_0

Nature of problem
In high energy e+e- collisions quark-antiquark pairs are produced, which fragment into the observed hadrons. The Monte Carlo code PARJET simulates exclusive hadronic final states produced in e+e--annihilation via a virtual photon by two steps: (i) the fragmentation of the original quark-antiquark pair into further partons using results of perturbative QCD in the leading logarithmic approximation (LLA) and (ii) the transition of these parton jets into hadrons on the basis of a chain decay model.

Versions of this program held in the CPC repository in Mendeley Data
ACFR_v1_0; PARJET; 10.1016/0010-4655(84)90023-7

This program has been imported from the CPC Program Library held at Queen's University Belfast (1969-2018)

程序名称：PARJET
目录编号：ACFR_v1_0

## 问题本质
在高能正负电子（e⁺e⁻）碰撞过程中，会产生夸克-反夸克对，这些夸克会碎裂为可观测的强子。蒙特卡洛（Monte Carlo）程序PARJET通过两个步骤模拟由虚光子介导的e⁺e⁻湮没过程所产生的单举强子末态：(i) 利用微扰量子色动力学（perturbative QCD）领头对数近似（leading logarithmic approximation, LLA）的相关结果，将初始夸克-反夸克对碎裂为更多的部分子；(ii) 基于链衰变模型，将上述部分子喷流转化为强子。

## Mendeley数据中的CPC程序库版本
ACFR_v1_0; PARJET; 10.1016/0010-4655(84)90023-7

本程序源自贝尔法斯特女王大学托管的CPC程序库（1969-2018）