Speaker
Thomas Gadfort
(BNL)
Description
Use of the jet-mass variable can significantly improve the reach of searches for high-mass diboson
resonances. Traditional searches for this process have focused on the purely leptonic final state to
reduce contamination from the large QCD jet background. We show that the significance to diboson
resonances can be enhanced when considering events with one or two leptons and at least one high
transverse momentum jet, whose reconstructed mass is consistent with a W or Z boson decay. We will
present the jet mass as a strong discriminating variable between QCD jets and W/Z boson initiated
jets and the level to which this quantity is modeled by Monte Carlo simulations. We will illustrate
this approach using the search for WW and WZ resonances with 5.4 fb-1 of DZero data.
Author
Thomas Gadfort
(BNL)
