PHOTOS Monte Carlo用于精确模拟QED的衰变-项目的历史和性质
PHOTOS Monte Carlo for precision simulation of QED in decays - History and properties of the project
摘要：
由于QED的性质，可以计算出粒子或共振衰变的韧致辐射修正，并具有很好的精度，与其他效应分开。由于事件记录的广泛使用，这样的计算可以体现在蒙特卡罗模拟链的一个单独的模块中，就像今天在高能实验中使用的那样。PHOTOS Monte Carlo程序用于此目的已有近20年的历史。在下面的演讲中，让我们回顾一下主要的思想和限制，这些思想和限制塑造了今天的程序版本，并使其得以广泛使用。我们将特别集中于一方面源于QED矩阵元素的属性的冲突要求，以及随着事件记录的时间标准而退化（发展）的冲突要求。这些问题在其他模块化软件应用程序中非常常见，随着精度要求的提高，这些问题变得越来越难以处理。
英文摘要：
Because of properties of QED, the bremsstrahlung corrections to decays of particles or resonances can be calculated, with a good precision, separately from other effects. Thanks to the widespread use of event records such calculations can be embodied into a separate module of Monte Carlo simulation chains, as used in High Energy Experiments of today. The PHOTOS Monte Carlo program is used for this purpose since nearly 20 years now. In the following talk let us review the main ideas and constraints which shaped the program version of today and enabled it widespread use. We will concentrate specially on conflicting requirements originating from the properties of QED matrix elements on one side and degrading (evolving) with time standards of event record(s). These issues, quite common in other modular software applications, become more and more difficult to handle as precision requirements become higher.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
