报告题目：Heavy flavor searches and Upgrades at ATLAS
报 告 人：王睿
阿贡国家实验室博士后
报告时间：2018年9月18日14:00-15:00
报告地点：清华大学刘卿楼104
主 持 人：杨振伟 副教授
报告摘要：
From B factory to Large hadron collider, there are still missing pieces in the studies of B hadron production and spectrum. Data collected by ATLAS detector allow us to continue the B-physics studies at higher energy. In this presentation, the ATLAS B-physics studies will be overviewed including the observation of the Bc(2S) state. As the center of mass energy reached 13 TeV in Run 2, a new window has been open to the physics beyond the Standard Model (BSM). Among them, the Di-jet final states are typical signatures for new resonances with strong interactions. For heavy flavor resonance searches, the signal sensitivity can be largely enhanced by tagging the b-jet(s) in the final state, which critically relies on tracking. The Fast TracKer(FTK), a hardware upgrade of the ATLAS TDAQ system for Run 3, will be able to provide high quality tracks to ATLAS high-level trigger(HLT) after the ATLAS level-1trigger. This will help significantly the trigger decision in HLT. The ATLAS inner tracker will be replaced for Run 4 with a whole new silicon detector (ITk). The performance studies show that a sizable improvement will be obtained for tracking with such a new detector. In this presentation, both the ongoing FTK activities and R&D work for inner tracker upgrade will also be discussed.

报告人简介：
王睿博士是美国阿贡国家实验室的博士后，多年来一直在高能物理领域从事实验研究，主要参加大型强子对撞机上的ATLAS实验。2007年她于武汉大学本科毕业，2011年于美国新墨西哥大学获得物理学硕士学位，并于2014年获得博士学位。随后，王睿博士到阿贡国家实验室从事博士后研究，继续参加ATLAS实验的物理分析和探测器升级研发。