Orateur
Description
The NCDY process is sensitive to NLO EW effects and to the value of sin2thetaW, which manifest themselves differently on the Z peak and at high invariant mass. In this, we present a practical and physics-oriented study based on POWHEG-BOX-V2 (Z_ew-BMNNPV), with emphasis on how to configure and validate NLO electroweak simulations. We discuss a reproducible workflow to control the relevant POWHEG settings and to generate event samples suitable for preliminary physics analyses.
We compare multiple electroweak input schemes, including $\alpha$(0), $G\mu$ with Mw input, and $G\mu$ with $sin^2(\theta_W)$ input, and quantify their impact across dilepton mass regions from the Z peak to the TeV scale. The final goal is to assess the sensitivity of high-mass observables to the scale evolution of sin2thetaW and to provide a validated POWHEG strategy for precision measurements.