Jet tomography of the Proton and the Nucleus
Particle Jets are a powerful tool for performing quantum tomography of the proton, which involves measuring the spatial and momentum densities of quarks and gluons that compose it.
We were among the early advocates and developers of jet physics at the EIC. We develop algorithms and techniques, propose new measurements, and estimate their feasibility to inform detector designs. Our work has contributed to shaping experimental considerations for jets and are prominently featured in key milestones such as the EIC Yellow Report and various detector proposals.
For instance, we developed the Centauro jet algorithm and introduced new observables such as 'hadron-in-jet' measurements in deep-inelastic scattering, along with the analysis of jets in events containing neutrinos in their final state, charm quarks, and the "tag-and-probe" approach for probing the nucleus with jets.
We established a pathfinder program for the EIC by mining data from the HERA collider to reveal the 3D structure of the proton with jets produced in electron scattering, though lacking the polarization and nuclear capabilities of the EIC.
We are deploying vanguard artificial intelligence (AI) techniques to perform these measurements. For example, we performed the first-ever measurement that used AI to correct for detector effects (unfolding).
Our jet program at HERA aims to develop various techniques and experimental approaches for jet measurements at the EIC. It also serves to test and motivate theoretical advancements that are emerging alongside the EIC's advent.
