The physics of $Z^0/{\gamma }^{\ast }$-tagged jets at the LHC

Abstract

Electroweak bosons produced in conjunction with jets in high-energy collider experiments is one of the principle final-state channels that can be used to test the accuracy of perturbative Quantum Chromodynamics calculations and to assess the potential to uncover new physics through comparison between data and theory. In this paper we present results for the $Z^0/{\gamma }^{\ast }$+jet production cross sections at the LHC at leading and next-to-leading orders. In proton-proton reactions we elucidate up to $\mathcal{O}(G_F{\alpha }_s^2)$ the constraints that jet tagging via the $Z^0/{\gamma }^{\ast }$ decay dileptons provides on the momentum distribution of jets. In nucleus-nucleus reactions we demonstrate that tagged jets can probe important aspects of the dynamics of quark and gluon propagation in hot and dense nuclear matter and characterize the properties of the medium-induced parton showers in ways not possible with more inclusive measurements. Finally, we present specific predictions for the anticipated suppression of the $Z^0/{\gamma }^{\ast }$+jet production cross section in the quark-gluon plasma that is expected to be created in central lead-lead collisions at the LHC relative to the naive superposition of independent nucleon-nucleon scatterings.

16 pages, 13 figures, As published in Physical Review, minor tipos fixed, a couple of references added

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Cited by in corpus (27)

• Studies of jet quenching using isolated-photon + jet correlations in PbPb and pp collisions at sqrt(s[NN]) = 2.76 TeV
• High transverse momentum quarkonium production and dissociation in heavy ion collisions
• Disentangling Jet Modification in Jet Simulations and in Z+Jet Data
• Study of W and Z Boson Production in Proton-Lead Collisions at the LHC with KP Nuclear Parton Distributions
• Photon-tagged heavy meson production in high energy nuclear collisions
• Medium modifications of girth distributions for inclusive jets and $Z^0+\mathrm{jet}$ in relativistic heavy-ion collisions at the LHC
• Productions of $Z^0$ and $W^{+}/W^{-}$ in Relativistic Heavy-Ion Collisions at the LHC
• Radial profile of bottom quarks in jets in high-energy nuclear collisions
• Flavor dependence of jet quenching in heavy-ion collisions from a Bayesian analysis
• Heavy-Flavour Jets in High-Energy Nuclear Collisions
• Transverse momentum balance of dijets in Xe+Xe collisions at the LHC
• Parton splitting scales of reclustered large-radius jets in high-energy nuclear collisions
• Probing the in-medium $P_T$-broadening by $\gamma$+HF angular de-correlations
• Longitudinal momentum fraction of heavy-flavor mesons in jets in high-energy nuclear collisions
• $p_T$ dispersion of inclusive jets in high-energy nuclear collisions
• $Z^0$ boson associated b-jet production in high-energy nuclear collisions
• The global geometrical property of jet events in high-energy nuclear collisions
• On the challenge of estimating diphoton backgrounds at large invariant mass
• Phenomenological study of the angle between jet axes in heavy-ion collisions
• Quenching of jets tagged with $W$ bosons in high-energy nuclear collisions
• Angular distributions of higher order splitting functions in the vacuum and in dense QCD matter
• Hadron productions and jet substructures associated with $Z^0/\gamma$ in Pb+Pb collisions at the LHC
• Production of leptons from decay of heavy-flavor hadrons in high-energy nuclear collisions
• The Fox-Wolfram Moment of Jet Production in Relativistic Heavy Ion Collisions
• Multiprocess imaging of nuclear modifications on parton distributions in proton-nucleus collisions
• Predictions for photon-jet correlations at forward rapidities in heavy-ion collisions
• Hard probes in heavy ion collisions: current status and prospects for application of QCD evolution techniques