Northwestern Events Calendar

Apr
18
2022

HEP Seminar: Kagan Simsek: Neutral-current SMEFT studies at the EIC

When: Monday, April 18, 2022
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: Samantha Westlake  

Group: Physics and Astronomy High Energy Physics Seminars

Category: Academic

Description:

Abstract: The Standard Model (SM) of particle physics has been successful in describing all known experimental phenomena and with the discovery of the Higgs boson at the Large Hadron Collider (LHC), its predicted spectrum has been completely observed; however, it contains poorly understood features. To address these shortcomings, numerous models beyond the SM (BSM) have been proposed. Since no conclusive evidence for new particles has been found yet, the Standard Model effective field theory stands as a useful tool to parameterize BSM effects. In this framework, one defines higher-dimensional interactions of existing SM particles, introducing so-called Wilson coefficients as couplings. In our study, we restrict ourselves to dimension-6 terms and constrain these coefficients by using the preliminary Electron-Ion Collider (EIC) data of various cross-section asymmetries in neutral-current deep inelastic scattering, focusing on semi-leptonic four-fermion operators. We find that the EIC can impose stronger bounds on the Wilson coefficients of interest than the LHC Drell-Yan data without suffering from degeneracies between them.

Speaker: Kagan Simsek, Northwestern University 

Host: André de Gouvêa 

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