The precision Monte Carlo event generator KK for two-fermion final states in e+e− collisions

Abstract
We present the Monte Carlo event generator KK version 4.13 for precision predictions of the Electroweak Standard Model for the process e^+ e^-→ f f̄ + ny, f = μ, τ, d, u, s, c, b, at centre-of-mass energies from τ lepton threshold to 1 TeV, that is for LEP, SLC, future Linear Colliders, b, c, τ-factories, etc. Effects due to photon emission from initial beams and outgoing fermions are calculated in QED up to second order, including all interference effects, within Coherent Exclusive Exponen...

Title of program: KK version 4.12
Catalogue Id: ADMD_v1_0

Nature of problem
The fermion pair production is and will be used as an important data point for precise tests of the standard electroweak theory at LEP and future linear colliders at higher energies. QED corrections to fermion pair production (especially tau leptons) at c-quark and b-quark factories has to be known to second order, including spin polarization effects. The Standard Model predictions at the per mille precision level, taking into account multiple emission of photons for realistic experimental accep ...

Versions of this program held in the CPC repository in Mendeley Data
ADMD_v1_0; KK version 4.12; 10.1016/S0010-4655(00)00048-5

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

**摘要**
本文介绍了用于电弱标准模型（Electroweak Standard Model）精确预言的蒙特卡洛事件生成器KK 4.13版，适用于质心系能量范围覆盖τ轻子阈值至1 TeV的过程$e^+e^- o far{f}+ny$，其中$f=mu, au,d,u,s,c,b$，适用实验装置包括大型电子正电子对撞机（Large Electron-Positron Collider，简称LEP）、斯坦福线性对撞机（Stanford Linear Collider，简称SLC）、未来直线对撞机、b夸克/c夸克/τ轻子工厂等。初始束流与出射费米子的光子辐射效应在量子电动力学（Quantum Electrodynamics，简称QED）框架内被计算至二阶精度，涵盖所有干涉效应，采用相干排他指数（Coherent Exclusive Exponen...）框架。

**程序名称**：KK 4.12版
**馆藏目录编号**：ADMD_v1_0

**问题本质**
费米子对产生过程此前及未来均将作为关键实验观测基准，用于在LEP及更高能区未来直线对撞机上开展标准电弱理论的高精度检验。在c夸克与b夸克工厂中，费米子对产生过程（尤其是τ轻子相关过程）的QED修正需被计算至二阶精度，且需包含自旋极化效应。本程序可实现千分之一精度级别的标准模型预言，同时考虑真实实验接收度（accep...）下的光子多重辐射效应。

**Mendeley数据库中CPC程序库收录的本程序版本**
ADMD_v1_0；KK 4.12版；DOI:10.1016/S0010-4655(00)00048-5

本程序源自贝尔法斯特女王大学馆藏的CPC程序库（1969-2019年）。