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Z0POLE — A program to calculate the electroweak and QCD radiative corrections to e+e- → f f near the Z0 resonance

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Mendeley Data2023-02-23 更新2024-06-26 收录
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Abstract We describe the program Z0POLE that evaluates the one-loop electroweak radiative corrections to the process e^+ e^-→ ff (f ≠ e^- ) near the Z^0resonance. QCD corrections are included up to O(α^3 _s ) for light-quark doublets and up to O(m^2 _( t)α_s ) for the t-b quark doublet. The program uses a calculational strategy that is based firmly on analytic S-matrix theory. It produces results that are demonstrably exactly gauge-invariant and that can be extended to include still higher-order... Title of program: Z0POLE Catalogue Id: ACJK_v1_0 Nature of problem Comparison between experimental results and theoretical predictions for the process e+e- -> ffbar near the Z0 resonance requires that electro- weak and QCD radiative corrections be taken into account. Possible future upgrades of the LEP collider will require that present calculations be extended to at least include dominant two-loop corrections. For this to be achieved a rigourous one-loop calculation based on a self-consistent perturbation expansion is needed. Versions of this program held in the CPC repository in Mendeley Data ACJK_v1_0; Z0POLE; 10.1016/0010-4655(92)90149-S This program has been imported from the CPC Program Library held at Queen's University Belfast (1969-2019)

摘要 本文介绍程序Z0POLE,用于计算正电子-负电子湮灭至正反费米子(f≠电子)过程在Z⁰共振峰附近的单圈电弱辐射修正。针对轻夸克双重态,量子色动力学(Quantum Chromodynamics, QCD)修正已被计入至α_s³阶;针对顶-底夸克双重态,QCD修正被计入至m_t²α_s阶。该程序采用严格基于解析S矩阵(analytic S-matrix)理论的计算策略,所得结果可证明具备严格的规范不变性,且可进一步扩展以纳入更高阶修正…… 程序名称:Z0POLE 目录编号:ACJK_v1_0 问题背景 在Z⁰共振峰附近开展e⁺e⁻→ff̄过程的实验结果与理论预言对比时,需计入电弱与QCD辐射修正。未来大型正负电子对撞机(Large Electron-Positron Collider, LEP)的升级计划,要求当前的计算至少扩展至包含主要两圈修正。为达成这一目标,亟需基于自洽微扰展开的严格单圈计算方案。 Mendeley数据的CPC程序库中收录的本程序版本:ACJK_v1_0;Z0POLE;10.1016/0010-4655(92)90149-S 本程序源自贝尔法斯特女王大学维护的CPC程序库(1969-2019年)
创建时间:
2020-01-02
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