⚛️ high-energy experiments
Associated Z + J/ψ production as a probe of multiparton interactions in the forward region
Using LHCb data from proton-proton collisions at 13 TeV, this study demonstrates that associated Z + J/ψ production in the forward region is dominated by multiparton interactions, yielding an effective cross-section of 16.6±4.7 mb that provides new constraints on the proton's transverse spatial structure at small Bjorken-x.
LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb, C. Abellan Beteta, F. Abudinén, T. Ackernley, A. A. Adefisoye, B. A (…)2026-06-05