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Abstract:
In the past years, the Large Hadron Collider (LHC) at CERN has been focusing on the direct searches of new physics and resulted in the discovery of the Higgs boson (Nobel Prize in 2013). With the new data collected during 2015-2016 on the 13 TeV high energy frontier, a great number of direct new physics searches have been carried out. However, no new excitement appears. As the energy scale (13 TeV) is not going to be increased as currently planned, the LHC is now in a transition period starts to shift its focus gradually from direct searches of new physics to precision measurements of the SM properties for the indirect searches of new physics.
This seminar will give a brief introduction of the direct and indirect searches of new physics at hadron colliders, using the heavy diboson resonance searches (direct search) and the W boson mass precision measurements (indirect search) as examples.
About the presenter:
Dr. Hengne Li
Senior Research Scientist at University of Virginia,
Dr. Li has 13 years of experiences in High Energy Physics, participated in several major experiments in the field, such as ILC/ILD/CALICE, D0, CMS, and ATLAS, with experiences covering physics analysis, detector R&D, detector simulation, data reconstruction, and grid/cloud computing. Dr. Li has worked as the D0 W mass analysis convener and the CMS Level-2 coordinator for physics validation and MC production. Dr. Li has more than 400 collaboration signature publications including 15 first author/main contributor publications.
Resume of the presenter:
2003-2006:
Master's degree at the Shandong University
- ATLAS experiment
- Grid/Cloud computing
2006-2009:
Ph.D. at University of Paris 11, LAL/CNRS,
- ILC and CALICE experiments,
- Higgs recoil mass analysis and the SiW ECAL,
- Studies have impacted the ILD detector and ILC accelerator designs received international recognition and published in the ILD Letter of Intent.
2009-2012:
Research Associate at LPSC Grenoble, CNRS,
- W mass measurement at the D0 experiment,
- Convener of the analysis group,
- Journal communication author of the publication in Phys. Rev. Lett., received PRL Editors'Suggestion, featured on the PRL journal cover page, and highlighted in APS online magazine “Physics” with “Synopsis: W Marks the Spot”.
2012-present
:
Research Associate at the University of Virginia later promoted to Senior Research Scientist, fulltime based at CERN (Geneva):
- CMS experiment,
- CMS ECAL Endcap Phase II Upgrade, and ECAL calibration
- Level-2 coordinator at CMS: coordinating physics performance validation, data (re-)processing, MC production, and dataset definition tasks.
- Higgs->ZZ->4l analysis: a major contributor to the fiducial cross-section measurements and the 13 TeV Higgs properties measurements.
- Heavy diboson resonance search in the ZZ->2l2nu channel: analysis team leader, contact person, journal communication author, results submitted to Journal of High Energy Physics.
