DPF - PHENO 2024

Measurement of the Drell–Yan forward-backward asymmetry and of the effective leptonic weak mixing angle using proton-proton collisions at √ s = 13 TeV

15 May 2024, 16:00

15m

David Lawrence Hall 207 (University of Pittsburgh)

Electroweak & Higgs Physics Electroweak & Higgs Physics

Speaker

Arie Bodek (University of Rochester (US))

Description

The forward-backward asymmetry in Drell–Yan production and the effective leptonic weak mixing angle are measured using a sample of proton-proton collisions at $\sqrt{s}$ = 13 TeV collected by the CMS experiment and corresponding to an integrated luminosity of 137 fb−1. The measurement uses both dimuon and dielectron events, and is performed as a function of the dilepton’s mass and rapidity. The measured value agrees with the standard model prediction. The total uncertainty using the CT18 PDF is 0.00031. This is the most precise ${\sin }^2{\theta }_{\mathrm{eff}}^{\ell }$ measurement at a hadron collider, with a precision comparable to the results obtained at LEP and SLD.

Presentation materials

DPF_2024_Bodek.pdf

DPF_2024_Bodek.pdf

DPF_2024_Bodek.pptx