Speaker
Description
Hadronization, the process by which quarks and gluons form color-neutral bound states, remains poorly understood despite its widespread importance as a fundamental component of QCD. Jets present ideal environments in which to study high-energy hadronization, as they are formed by a scattered parton and contain the final-state hadrons produced during the hadronization process. Distributions of the final state hadrons in jets provide insight into hadronization dynamics and color neutralization mechanisms and help constrain the current theoretical parameterizations for describing hadronization in jets, the jet fragmentation functions. Comparisons of hadron distributions in forward Z-tagged jets, jets recoiling against a Z boson, and in midrapidity inclusive jets at LHC energies can probe differences between light-quark and gluon hadronization as forward Z-tagged jets are predominantly light-quark-initiated while midrapidity inclusive jets are predominantly gluon-initiated. In this talk, recent LHCb results of the longitudinal momentum fraction, transverse momentum with respect to the jet axis, and radial distribution of charged hadrons in Z-tagged jets will be presented and implications of these and future measurements for advancing our understanding of hadronization will be discussed.
