报告题目： Experimental studies of doubly-charmed baryons at LHCb

报 告 人 ：徐庆年 博士， 中国科学院大学

报告时间：10月21日（星期一）10：00

报告地点：前卫南区 物理楼333报告厅

报告摘要：

When considering lightest four quarks (u, d, s and c),  the quark model predicts baryons with C = 2 from SU(4) multiples, such as Xicc++(ccu), Xicc+(ccd) and Omegacc+(ccs), which are referred to doubly charmed baryons.  Recently, the LHCb experiment announced the observation of the doubly charmed baryon Xicc++ using the proton-proton collision data collected at a center-of-mass energy of 13 TeV in 2016.  Which was confirmed in an additional sample collected at 8 TeV in 2012.

The report will discuss the observation of Xicc++ and introduce the following measurement of doubly charmed baryon at LHCb.

报告人简介：

Dr. Qingnian Xu got his PhD from University of Chinese Academy of Science in 2016, working on BESIII, Belle experiment and MOMENT experiment. Then he became the Postdoc there working on LHCb experiment. He has the experience on offline software development, data analysis and hardware test on particle physics experiments.

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　　　　　吉林大学理论物理中心

　　　　　吉林省物理学会