WTO — a deterministic approach to 4-fermion physics

Abstract The program WTO, which is designed for computing cross sections and other relevant observables in the e + e − annihilation into four fermions, is described. The various quantities are computed over both a completely inclusive experimental set-up and a realistic one, i.e. with cuts on the final state energies, final state angles, scattering angles and final state invariant masses. Initial state QED corrections are included by means... Title of program: WTO Catalogue Id: ADDK_v1_0 Nature of problem An accurate description of the process e+e- -> 4 fermions is needed in order to fully describe the physics available at LEP 2 and at higher energies. In particular the properties of the W boson can be correctly analyzed around and above the threshold only when the full gauge- invariant set of diagrams contributing to a given final state is included. Similarly the Z - Z production and the Higgs boson production can be studied within the minimal standard model. Indeed from a field theoretical poin ... Versions of this program held in the CPC repository in Mendeley Data ADDK_v1_0; WTO; 10.1016/0010-4655(96)00041-0 This program has been imported from the CPC Program Library held at Queen's University Belfast (1969-2019)**摘要** 本文详细描述了程序WTO，该程序用于计算e⁺e⁻湮灭产生四费米子过程的散射截面及其他相关可观测量。程序可在两种实验框架下完成各类物理量的计算：其一为全包容性实验探测装置，其二为实际探测装置，后者需对末态能量、末态角度、散射角及末态不变质量施加运动学截断。初态QED（量子电动力学）修正通过……方式纳入计算。 **程序名称**：WTO **目录编号**：ADDK_v1_0 **问题描述** 为完整描述LEP 2及更高能区的物理现象，需对e⁺e⁻→4费米子过程进行精确建模。具体而言，只有当某一末态对应的全部规范不变费曼图集合均被纳入计算时，才能在W玻色子阈值附近及以上能区准确分析其性质。同理，利用最小标准模型可开展Z玻色子对产生与希格斯玻色子产生的相关研究。从场论视角出发…… **Mendeley数据中CPC程序库存储的该程序版本**：ADDK_v1_0; WTO; 10.1016/0010-4655(96)00041-0 本程序源自贝尔法斯特女王大学馆藏的CPC程序库（1969-2019年）