Exploiting the WH/ZH symmetry in the search for new physics

We suggest to isolate the loop-induced gluon-initiated component ([Formula: see text] ) for associated [Formula: see text] production by using the similarity of the Drell–Yan-like component for [Formula: see text] production to the [Formula: see text] process. We argue that the cross-section ratio of the latter two processes can be predicted with high theoretical accuracy. Comparing it to the experimental [Formula: see text] cross-section ratio should allow to probe for new physics in the [Formula: see text] component at the HL-LHC. We consider typical BSM scenarios in order to exemplify the effect they would have on the proposed observable.