讲座嘉宾：陈文时　　间：2026年3月26日(周四)10:30-12:00时地　　点：桂子山校区9号教学楼9557会议室摘要：随着大型强子对撞机上希格斯玻色子的发现，高精度计算已成为高能物理研究中的热点之一，高能物理中高精度计算的主要内容之一就是高圈费曼振幅的计算。近二十年来，高圈计算已形成了一套标准的流程，这也使得高圈振幅的自动化计算成为可能。近些年来，报告人与其合作者发展了一整套基于费曼参数化表示计算高圈费曼振幅的方法，...

Modern nuclear physics aims to understand nuclear structure and decay properties from fundamental nucleon interactions. Phenomenological models successfully describe known data but lose predictive power for exotic nuclei and rare processes. Recent advances in ab initio methods employ ...

Speaker: 徐凌霄 博士, (the Abdus Salam International Centre for Theoretical Physics)Time: 2025年12月29日·周一下午 14:00Location: 9号楼9409会议室Abstract: Motivated by recent advances in the generalization of global symmetries in quantum fieldtheory, we introduce a class of selection rules originating from non-invertible fusion algebras rather thanconventional group laws, which we refer to as non-invertible ...

The parton structure of the nucleus at very low Bjorken-x, especially its gluon content, is largely unknow.  Measurements at small-x will not only provide experimental constrains for (nuclear) PDFs in a region of phasespace where experimental data is scarce, but will also enable ...

The transverse polarization of Λ hyperons within unpolarized jets is encoded in the transverse-momentum-dependent (TMD) fragmentation function . In the vacuum environment, the QCD evolution of this TMD fragmentation function is governed by the Collins-Soper equation. However, in the presence of ...