- Open Access
Measurement of inclusive jet cross section and substructure in collisions at
Phys. Rev. D 111, 112008 – Published 24 June, 2025
DOI: https://doi.org/10.1103/hpm9-qfp6
Abstract
The jet cross section and jet-substructure observables in collisions at were measured by the PHENIX Collaboration at the Relativistic Heavy Ion Collider (RHIC). Jets are reconstructed from charged-particle tracks and electromagnetic-calorimeter clusters using the anti- algorithm with a jet radius of for jets with transverse momentum within and pseudorapidity . Measurements include the jet cross section, as well as distributions of SoftDrop-groomed momentum fraction (), charged-particle transverse momentum with respect to jet axis (), and radial distributions of charged particles within jets (). Also measured was the distribution of , where is the fraction of the jet momentum carried by the charged particle. The measurements are compared to theoretical next-to and next-to-next-to-leading-order calculations, the pythia and herwig event generators, and to other existing experimental results. Indicated from these measurements is a lower particle multiplicity in jets at RHIC energies when compared to models. Also noted are implications for future jet measurements with sPHENIX at RHIC as well as at the future Electron-Ion Collider.
Physics Subject Headings (PhySH)
Corrections
10 July, 2025
Correction: During the production process, the footnote to indicate deceased authors was applied to the wrong author name two times and has been fixed.
Article Text
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