ERATO: Event generator for four-fermion production at LEP2 energies and beyond

Abstract
ERATO is a Monte Carlo event generator describing four-fermion production at LEP2 and beyond. All tree-order processes leading to four fermions are included, taking into account all relevant QCD contributions. QED higher order corrections are introduced via a structure function approach, whereas weak corrections related to fermion loops are also included. Special attention has been paid to studying the trilinear gauge couplings, and all possible contributions, including the CP_violating ones,...

Title of program: ERATO
Catalogue Id: ADFA_v1_0

Nature of problem
A very important fraction of the events produced at high-energy e+e- collisions corresponds to four-fermion final states. Important physical issues, like the measurement of the mass of the W boson and the study of the trilinear gauge couplings (TGC), are based on the analysis of these four-fermion final states. Other production processes, like associated Higgs production or R-parity violating SUSY particle production, lead also to the same final states. It is therefore indispensable to have a ra ...

Versions of this program held in the CPC repository in Mendeley Data
ADFA_v1_0; ERATO; 10.1016/S0010-4655(96)00149-X

This program has been imported from the CPC Program Library held at Queen's University Belfast (1969-2019)

**摘要**
ERATO是一款用于描述LEP2及更高能区四费米子产生过程的蒙特卡洛事件发生器。本程序涵盖所有产生四费米子的树阶过程，并计入所有相关的量子色动力学（Quantum Chromodynamics, QCD）贡献。量子电动力学（Quantum Electrodynamics, QED）高阶修正通过结构函数方法引入，同时也纳入了与费米子圈相关的弱相互作用修正。本程序针对三线性规范耦合（trilinear gauge couplings, TGC）的相关研究给予了重点关注，涵盖所有可能的贡献类型，包括CP破缺（CP-violating）贡献……

**程序名称**：ERATO
**目录编号**：ADFA_v1_0

**问题背景**
高能正电子-电子对撞所产生的事件中，有相当大的比例对应四费米子末态。诸多重要的物理研究课题，例如W玻色子质量的测量以及三线性规范耦合（TGC）的研究，均基于对这类四费米子末态的分析。其他产生过程，如希格斯粒子伴随产生或R宇称破缺的超对称（Supersymmetry, SUSY）粒子产生过程，同样会产生此类末态。因此，亟需一套能够准确描述此类过程的[原文未完成]

**Mendeley数据集中CPC程序库收录的该程序版本**
ADFA_v1_0；ERATO；DOI:10.1016/S0010-4655(96)00149-X

本程序源自贝尔法斯特女王大学馆藏的CPC程序库（1969-2019年）