Reconstruction of the transverse momentum of W bosons in pp collisions at √s = 8 TeV

by Sangil Park (MS Candidate)

Wednesday Nov 26, 2014, 2:30 PM → 3:00 PM Asia/Seoul

119호 (제1과학관)

A reconstruction of the W boson in proton-proton collisions as a function of the W boson transverse momentum is reported. The W bosons are identified via their decay to electron and neutrino. The analysis is based on a data sample collected by the CMS experiment at the LHC at √s = 8 TeV corresponding to an integrated luminosity of 18.4 pb-1. The measured distribution is compared to theoretical predictions : POWHEG, a next-to-leading-order QCD calculation. The predictions of calculations are in agreement with the experimental measurement, but there is some discrepancy at low transverse momentum region.

Thesis Advisor: Prof. Dongchul Son