报告题目：The Calculation of Parametric Feynman Integrals
报告人：陈文 博士 （浙江大学）
报告时间：2024年1月9日 上午10:00
报告地点：理8栋118学术报告厅
报告内容：
High-precision calculation is one of the frontiers in the field of high-energy physics. One of the main aspects of high-precision calculation in high-energy physics is the calculation of Feynman integrals. The standard procedure to calculate Feynman integrals is as follows. Firstly we use the Integration-by-Parts (IBP) method to express a Feynman integral as a linear combination of the so-called master integrals. Then we evaluate the master integrals by using the differential-equation method either numerically or analytically. We refer to the step of expressing Feynman integrals in terms of master integrals the reduction of Feynman integrals. In recent years, the speaker has developed a method to reduce Feynman integrals based on the Feynman-parameter representation. This method has several advantages compared to traditional approaches. Recently, we have further combined this method with the differential-equation method and develop a technique to calculate Feynman integrals recursively. Experiences show that this method surpasses existing methods on both efficiency and accuracy in many cases. In this presentation, the speaker will provide a detailed introduction to these methods.
报告人简介：
Dr. Chen Wen graduated from the Institute of High Energy Physics, Chinese Academy of Sciences in 2018. From 2018 to 2021, he worked as a postdoctoral fellow at the University of Alberta in Canada. Since 2022, he has been working as a postdoctoral researcher at Zhejiang University. His main research focus is perturbative calculations and related phenomenological applications in high-energy physics.