Speaker
Elisabetta Furlan
(Brookhaven National Laboratory)
Summary
We study interference effects in the production channel ZZ+jet, in particular focusing on the role of the Higgs boson. This production channel receives contributions both from Higgs-mediated diagrams via the decay H->ZZ, as well as diagrams where the Z bosons couple directly to a quark loop. For an invariant mass of the Z pair larger than 300 GeV, we find that the interference in the ZZ + jet channel is qualitatively similar to interference in the inclusive ZZ channel. Moreover, the rates are sufficient to study these effects at the LHC once jet-binned data become available.
