Speaker
Andreas Hinzmann
(Deutsches Elektronen-Synchrotron DESY)
Description
The jet mass of W bosons decaying to a quark-antiquark pair is measured in W+jet events from proton-proton collisions in the LHC at a center-of-mass energy of $\sqrt{s}$ = 13 TeV. W bosons with large transverse momentum (boost) produce strongly collimated decay products reconstructed as single large-radius jets. Jets initiated by W bosons with a characteristic two-prong substructure are distinguished from single quark- and gluon- initiated jets in background using a jet substructure observable. We report the double-differential cross section in bins of jet transverse momentum and jet soft drop mass. A first measurement of the W mass in an all-jets final state at a hadron collider is reported.