QCDINS 2.0 – A Monte Carlo generator for instanton-induced processes in deep-inelastic scattering ☆

Abstract
We describe a Monte Carlo event generator for the simulation of QCD-instanton induced processes in deep-inelastic scattering (HERA). The QCDINS package is designed as an “add-on” hard process generator interfaced to the general hadronic event simulation package HERWIG. It incorporates the theoretically predicted production rate for instanton-induced events as well as the essential characteristics that have been derived theoretically for the partonic final state of instanton-induced processes:...

Title of program: QCDINS 2.0
Catalogue Id: ADMI_v1_0

Nature of problem
Instantons are a basic aspect of Quantum Chromodynamics. Being non-perturbative fluctuations of the gauge fields, they induce hard processes absent in conventional perturbation theory. Deep-inelastic lepton-nucleon scattering at HERA offers a unique possible discovery window for such processes induced by QCD-instantons through their characteristic final-state signature and a sizable rate, calculable within instanton-perturbation theory. An experimental discovery of such a novel, non-perturbative ...

Versions of this program held in the CPC repository in Mendeley Data
ADMI_v1_0; QCDINS 2.0; 10.1016/S0010-4655(00)00148-X

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

摘要
本文描述了一款用于模拟深度非弹性散射（deep-inelastic scattering, HERA）过程中量子色动力学瞬子（QCD-instanton）诱导反应的蒙特卡洛事件生成器（Monte Carlo event generator）。QCDINS软件包被设计为一款"add-on"硬过程生成器，可与通用强子事件模拟软件包HERWIG对接。该软件包纳入了理论预言的瞬子诱导事件产生率，以及理论推导得到的瞬子诱导过程部分子末态的核心特征：...

程序名称：QCDINS 2.0
目录编号：ADMI_v1_0

问题本质
瞬子（instantons）是量子色动力学（Quantum Chromodynamics, QCD）的基本属性之一。作为规范场（gauge fields）的非微扰涨落，瞬子会诱导出常规微扰论中不存在的硬过程。HERA装置上的轻子-核子深度非弹性散射，为量子色动力学瞬子诱导的此类反应提供了独特的潜在发现窗口：这类反应兼具特征性末态信号与可观的产生率，且其产生率可通过瞬子微扰论（instanton-perturbation theory）进行计算。对这类全新非微扰过程的实验观测...

Mendeley数据中心CPC存储库中收录的本程序版本：
ADMI_v1_0; QCDINS 2.0; 10.1016/S0010-4655(00)00148-X

本程序源自贝尔法斯特女王大学馆藏的CPC程序库（1969-2019）