Diboson Interference Resurrection

Abstract

High-energy diboson processes at the LHC are potentially powerful indirect probes of heavy new physics, whose effects can be encapsulated in higher-dimensional operators or in modified Standard Model couplings. An obstruction however comes from the fact that leading new physics effects often emerge in diboson helicity amplitudes that are anomalously small in the Standard Model. As such, the formally leading Standard Model/New Physics interference contribution cancels in inclusive measurements. This paper describes a solution to this problem.

Comments: 8 pages, 4 figures. v2: References added, minor corrections. v3: Matches published version. v4: Change in the general definition of the decay angles, results unchanged