报告题目：Two-body doubly charmful baryonic B decays

摘 要：In this talk, I would like to present our recent study of the two-body doubly charmful baryonic B decays with SU(3) flavor symmetry. It is found that the W-exchange contribution, previously neglected in studies, needs to be taken into account, such that the significant discrepancy between the theoretical estimation and experimental data for B(B^0\to\Lambda_c^+\bar\Lambda_c^-) can be alleviated.  Consequently, it leads to non-zero branching fractions for the pure W-exchange decay channels, of which the theoretical predictions will also be given.

报告时间：2024年4月12日15:40

报告地点：理学院307会议室

报告人简介：萧佑国，山西师范教授，中国台湾大学博士，博士生导师。山西省委高级联系专家，山西省“百人计划”海外高层次人才人选，山西省“三晋英才”支持计划拨尖骨干人才，Eur.phys.J.C、ChinesePhysicsC、Advances in High Energy Physics、Int. J. Mod. Phys. A 等国际著名期刊审稿人。主要从事重味强子衰变和 CP破坏的理论研究。主持国家自然基金面上项目2项，教育部项目1项，中科院重点支撑计划项目1项。在国际上首次建立了多体重味强子衰变的理论方法，并成功预言了实验结果，为解决宇宙中物质－反物质不对称之谜提供了重要的理论支撑，相关论文被Nature，PRL等权威杂志正面引用800余次。近年来，在Phys. Rev. Lett.、Phys. Lett. B等国际顶级期刊发表学术论文50余篇。