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学术报告Seminar(2018年1月9日)

报告人: 
耿聪博士(美国密西根大学)Dr. Cong Geng (University of Michigan)
题目: 
利用ATLAS实验收集的13TeV的数据分析实验中产生的双玻色子-ZZ的结果(Results of Di-boson ZZ production with ATLAS 13TeV data)
地点: 
中山大学南校园十友堂300(RM.300,SHIYOU TANG, Guangzhou South Campus,Sun Yat Sen University)
时间: 
2018年1月9日 10:00 - 11:00 (January 9, 2018)

主 持 人(host):王为教授(中山大学manbetx手机网页版)Wei Wang (School of Physics, Sun Yat-sen University)

报告摘要: 双玻色子ZZ的产生是LHC中pp对撞产生的黄金通道之一,这一通道随着数据亮度的提升过程中变得越来越重要。2013年,HàZZ*à4l是发现希格斯粒子中一条重要的通道。在LHC的RUN2时期中,ZZ的产生吸引了更多科学家的兴趣,以及由于更高的统计量,在精细测量实验、超越标准模型中也取得了一定的成就。在这个报告中,报告人将会与大家讲述一些关于双玻色子-ZZ的产生的新结果。首先,基于标准模型,ZZ的产生可以用极高的精度测量。本实验会展示利用13TeV的数据带来的相关分析结果,并展示实验结果与理论预测值之间的比较结果。Higgs-ZZ则是另一个报告的重要主题,HàZZ*à4l的耦合测量结果也是报告的主题之一。除此之外,超越标准模型的一些研究结果也会被谈及到—利用完全轻子型ZZ衰变进行的高质量共振子研究、以及希格斯衰变至不可见粒子的研究。

Abstract: Di-boson ZZ production is one of golden channels in pp collision at LHC, which becomes more and more important with the increasing of data luminosity. In 2013, HàZZ*à4l is one of significant channels for Higgs discovery. At RUN2 period of LHC, ZZ production attracts more interests and efforts on the precision measurements and Beyond Standard Model (BSM) searches due to the higher statistics. In this talk, some new results related with Di-boson ZZ production will be presented. First of all, the SM ZZ production is measured with very high precision, of which the results with 13TeV will be shown and compared to theoretical predictions and former results. Higgs ZZ will be another major aspect, and the coupling measurement of Higgs to ZZ4l will be presented. Besides the measurement, some searches on BSM will be included: High mass resonance searches with fully leptonic ZZ decays and Higgs decaying to invisible particle search.

报告人简介:

耿聪, 2004年毕业于中国科技大学粒子物理专业,2012年-2013年在美国夏威夷大学做访问学者。2014年获得中国科学技术大学粒子物理专业博士学位。2014年赴密西根大学 (University of Michigan) 物理系做博士后至今。主要从事强子谱学,标准模型,超越标准模型等粒子物理前沿问题研究,在PRD, PRL, PRB, JHEP等期刊发表论文9篇。

Information about Reporter:

Doctor Cong Geng, graduated from the Department of Nuclear and Particle Physics, University of Science and Technology of China in 2007. He was Visiting Scholar in University of Hawaii from 2012 to 2013. Between September 2018 and July 2014, he graduated from the University of Science and Technology of China. Since 2014 he did the postdoctoral research at the University of Michigan.

He focuses on the hadron spectroscopy physics, SM, BSM etc. in the framework of leading-edge particle physics. He published 9 academic papers in the journal PRL, JHEP, PRB, PRD etc.