Title: Electroweak Precision Measurements at Hadron Colliders
Speaker: Dr.Siqi Yang (The University of Iowa)
Chair: Prof. Liang Zhijun
Time: 10:00am, Thursday 12th September, 2019
Location: C305 main building
The electroweak precision measurement is among the most important topics in experimental physics. In the past decades, many milestones in particle physics, including the discovery of the W and Z bosons, the top quark and the Higgs boson, benefit from the electroweak precision measurement and corresponding global fitting. From the beginning of this century, electroweak precision measurement has been performed at hadron colliders. After the discovery of the top quark and Higgs boson, it becomes important to help searching the beyond standard model phenomenon (especially for the situation that we did not have clear clue for new physics by direct searching at the LHC). To provide high precision for fundamental parameters in the electroweak theory (the W boson mass and the effective weak mixing angle), multiple topics have to be studied., including one order of magnitude improvement on the lepton reconstruction, better modelling of the PDF and calculation in QCD, and study on the strategy of performing such measurements at high instantaneous luminosity colliders. The reporter will discuss the highlights in the electroweak precision measurement at the Fermilab’s Tevatron, and introduce the current status of measurements at the CERN LHC.