Probing the Weak Mixing Angle at high energies at the LHC

2022/11/16 by Vazzoler, Federico, Amoroso, Simone, Lipka, Ekaterina +4
#FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph)

paper · doi:10.48550/arxiv.2211.08967

Abstract

The electroweak mixing angle is a fundamental parameter of the theory of electroweak interactions. Its value has been measured precisely at the Z-pole at colliders. In this contribution, we propose to exploit measurements of Neutral-Current Drell-Yan production at the Large Hadron Collider at large invariant dilepton masses to determine the energy scale dependence (running) of the electroweak mixing angle in the MS renormalisation scheme, sin²θ_W,ℓ^MS(μ). Such a measurement can be used to confirm the Standard Model predictions for the MS running at TeV scales, and to set model-independent constraints on new states with electroweak quantum numbers. To this end, we make use of a dedicated implementation of sin²θ_W,ℓ^MS(μ) in the POWHEG-BOX-V2 Monte Carlo event generator, which we use to explore the potential of future analyses using the data of the LHC Run 3 and High-Luminosity.

Related

• Probing the weak mixing angle at high energy
• Measurement of the effective weak mixing angle at the CEPC
• Precision Measurements of the Electroweak Mixing Angle in the Region of the Z pole
• Novel Approach to Renormalize the Electroweak Sector of the Standard Model
• Electroweak precision measurements with the CMS detector