When:
Monday, February 26, 2024
4:00 PM - 5:00 PM CT
Where: Technological Institute, F160, 2145 Sheridan Road, Evanston, IL 60208 map it
Audience: Faculty/Staff - Student - Post Docs/Docs - Graduate Students
Contact:
Joan West
(847) 491-3645
Group: Physics and Astronomy High Energy Physics Seminars
Category: Academic
The CERN LHC has generated an extraordinary amount of high energy particle collisions that can be used to search for new physics beyond the standard model. However, after the successful discovery of the Higgs boson in 2012, no definitive evidence for any such new physics has been found, which could indicate that the new physics exists at an energy scale beyond the direct reach of the LHC. Effective field theory (EFT) provides a flexible, relatively model agnostic framework that can be used to predict off-shell new physics contributions. This presentation will describe an EFT search that focuses on top quarks produced in association with multiple leptons to place constraints on 26 EFT parameters. We will explore some of the technical challenges involved with fitting so many free parameters, and discuss the prospects towards analysis combinations that aim to place simultaneous constraints on an ever growing number of EFT parameters.
Andrew Wightman, Postdoctoral Associate, University of Nebraska-Lincoln
Host: Michael Schmitt