4–6 May 2020
University of Pittsburgh
US/Eastern timezone

Drell-Yan in the SMEFT Including Coupling Shift Effects

5 May 2020, 15:30
15m
Parallel Talk BSM BSM III

Speakers

Ms Alyssa Horne (Sam Houston State University)Mr Marcus Snedeker (Sam Houston State University)

Description

We present the extension of a search for model-independent new physics events in dilepton production at the LHC using the SMEFT toolkit. This search, for the first time, includes the effect both of the set of four-fermion operators that give contributions growing with energy and the operators which alter the would-be SM couplings of the Z boson to fermions, leading to corrections proportional to the SM prediction. Our results give prospective bounds on the now four-dimensional parameter space of SMEFT effects in Drell-Yan, including the effects of treating unknown contributions at higher orders in the EFT expansion as theoretical uncertainties.

Primary authors

Ms Alyssa Horne (Sam Houston State University) Mr Marcus Snedeker (Sam Houston State University)

Co-authors

Dr William Shepherd (Sam Houston State University) Dr Joel Walker (Sam Houston State University) Mr Jordan Pittman (Sam Houston State University) Mr James Floyd (Sam Houston State University)

Presentation materials