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Abstract:
The electroweak unification theory, one of the greatest successes of the Standard Model, predicts and accurately describes elementary particles and their interactions. Precise measurements of its fundamental parameters provide stringent tests of the Standard Model and a powerful probe for new physics beyond collider scales. As a forward spectrometer at the LHC with unique kinematic acceptance, LHCb offers a distinctive platform for electroweak and top-quark physics in the forward region. This summary presents LHCb‘s key results in these fields, including precise measurements of W and Z boson masses and the weak mixing angle, studies on Z boson polarization and production cross sections, and the latest top-quark charge asymmetry result. Future prospects for precision electroweak and top-quark measurements at LHCb are also outlined.
Biography:
Menglin Xu is currently a Research Fellow at CERN. She received her doctoral degree from Central China Normal University in 2021 and subsequently carried out postdoctoral research at the University of Warwick from 2021 to 2024. Her research interests include precision electroweak measurements, top-quark physics studies and high-precision simulations at the LHCb experiment. To date, she has published 10 SCI papers, including 4 in PRL. She previously served as the convenor of the LHCb Electroweak and Standard Model Physics Analysis Group. At present, she serves as the representative of the LHCb Collaboration in the LHC Electroweak Precision Physics Working Group, the LHCb Detector Simulation Coordinator, and the convenor of the simulation area of the High Energy Physics Software Foundation (HSF). For her groundbreaking contributions to electroweak physics and simulation software, she received the University of Warwick Postdoctoral Prize (2023) and the LHCb Collaboration Early Career Award (2024).
Host: Prof. Wei Wang
Online link: https://meeting.tencent.com/dm/bcsFF4p0WbdL
ID: 498309216 Password: 123456