Speaker
Description
Precision measurement at the LHC can provide probes of new physics which are com- plementary to direct searches. The high energy distribution of di-boson is a promising place, with the possibility of significant improvement with the accumulation of data. We focus on the semi-lepton final states, and make projections of the reach for future runs of the LHC with integrated luminosities of 300 fb−1 and 3 ab−1. We emphasize the im- portance of tagging the polarization of the vector bosons in particular for the WW and WZ channels. In particular, we employed a combination of kinematical distributions of both the W and Z, and their decay product to select the longitudinally polarized W and Z. We have also included our projections for the reach of the associated vector boson and Higgs production channel. We demonstrate that di-boson measurement in the semi- leptonic channel can surpass the sensitivity of the precision measurement at LEP, and they can be significantly more sensitive than the h -> Zγ measurements.
