Importance and Prospects of the Electroweak Mixing Angle Measurements in the High Luminosity Large Hadron Collider

The electroweak mixing angle is a fundamental parameter in the Standard model (SM), probing mixing of W and B fields. This is identical for all leptons because of the lepton universality. A precision extraction of the electroweak mixing angle using high luminosity LHC (HL-LHC) data can help settle the long-standing issue of the discrepancy between the precise measurements from LEP and SLD data. Searches at HL-LHC will profit from the much larger statistics, slightly higher energy and the upgraded detectors. Additionally, it is very important to reduce both the statistical and PDF uncertainties, which seems to be possible with the HL-LHC measurements. Direct searches for new physics will continue at the HL-LHC with enhanced sensitivity.