Suppression of elliptic anisotropy inside jets: A new perspective for jet quenching

Abstract

Particle azimuthal anisotropies inside jets, defined within the momentum plane perpendicular to the jet axis, carry the information of the QCD cascade process for jet formation. In this work, we propose to measure the medium-induced modifications of the elliptic anisotropy inside jets in relativistic heavy-ion collisions to provide novel insight into the jet quenching phenomenon. By simulating the jet propagation in the hot and dense nuclear medium with a Linear Boltzmann Transport model, we observe a de-correlation in the two-particle azimuthal angular distribution for inclusive jet production in AA collisions relative to that in pp collisions, which results in significant suppression of the in-jet elliptic anisotropy coefficient $v_2$. This phenomenon arises from the stochastic and strong interactions with the thermal QGP medium undergone by the jet particles. Furthermore, the nuclear modifications of the in-jet $v_2$ are found to be sensitive to the medium properties in the model study, which provide a potential probe for the jet tomography of nuclear matter.

arXiv comment7 pages, 6 figures

References in corpus (52)

• An Introduction to PYTHIA 8.2
• FastJet user manual
• A Multi-Phase Transport Model for Relativistic Heavy Ion Collisions
• Collective flow and viscosity in relativistic heavy-ion collisions
• Long-range angular correlations on the near and away side in p-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV
• Hydrodynamic Modeling of Heavy-Ion Collisions
• Multiple Parton Scattering in Nuclei: Parton Energy Loss
• Flow analysis with cumulants: direct calculations
• Multiple Scattering, Parton Energy Loss and Modified Fragmentation Functions in Deeply Inelastic eA Scattering
• Evidence for collectivity in pp collisions at the LHC
• Extracting jet transport coefficient from jet quenching at RHIC and LHC
• Extraction and validation of a new set of CMS PYTHIA8 tunes from underlying-event measurements
• Jet Substructure at the Large Hadron Collider: A Review of Recent Advances in Theory and Machine Learning
• Jet quenching in high-energy heavy-ion collisions
• Creating small circular, elliptical, and triangular droplets of quark-gluon plasma
• Linearized Boltzmann transport model for jet propagation in the quark-gluon plasma: Heavy quark evolution
• Hydrodynamic elliptic and triangular flow in Pb-Pb collisions at sqrt(s)=2.76ATeV
• Studies of jet quenching using isolated-photon + jet correlations in PbPb and pp collisions at sqrt(s[NN]) = 2.76 TeV
• Effects of initial flow velocity fluctuation in event-by-event (3+1)D hydrodynamics
• Radiative and Collisional Jet Energy Loss in the Quark-Gluon Plasma at RHIC
• Modification of jet shapes in PbPb collisions at sqrt(s[NN]) = 2.76 TeV
• 50 Years of Quantum Chromodynamics
• Jet quenching and medium response in high-energy heavy-ion collisions: a review
• Medium response in JEWEL and its impact on jet shape observables in heavy ion collisions
• Effects of jet-induced medium excitation in $\gamma$-hadron correlation in A+A collisions
• Heavy and light flavor jet quenching at RHIC and LHC energies
• Determining the jet transport coefficient $\hat{q}$ from inclusive hadron suppression measurements using Bayesian parameter estimation
• Multiple Parton Scattering in Nuclei: Beyond Helicity Amplitude Approximation
• Analyzing N-point Energy Correlators Inside Jets with CMS Open Data
• Interplaying mechanisms behind single inclusive jet suppression in heavy-ion collisions
• Measurements of long-range near-side angular correlations in $\sqrt{s_{\text{NN}}}=5$TeV proton-lead collisions in the forward region
• Multiple jets and $\gamma$-jet correlation in high-energy heavy-ion collisions
• Imaging Shapes of Atomic Nuclei in High-Energy Nuclear Collisions
• Resolving the Scales of the Quark-Gluon Plasma with Energy Correlators
• Hydrodynamic Collectivity in Proton--Proton Collisions at 13 TeV
• Analytical and numerical Gubser solutions of the second-order hydrodynamics
• The Energy Distribution of Subjets and the Jet Shape
• Probing the Short-Distance Structure of the Quark-Gluon Plasma with Energy Correlators
• Suppression of the high $p_T$ charged hadron $R_{AA}$ at the LHC
• Medium modification of $\gamma$-jet fragmentation functions in Pb+Pb collisions at LHC
• Nuclear modification of jet shape for inclusive jets and $\gamma$-jets at the LHC energies
• Goos-Hänchen Shifts of Partially Coherent Light Fields
• Multiple Parton Scattering in Nuclei: Heavy Quark Energy Loss and Modified Fragmentation Functions
• A Fully Self-Consistent Cosmological Simulation Pipeline for Interacting Dark Energy Models
• Collectivity in Ultra-Peripheral Pb+Pb Collisions at the Large Hadron Collider
• QCD and Jets at Hadron Colliders
• A global extraction of the jet transport coefficient in cold nuclear matter
• Novel observables for exploring QCD collective evolution and quantum entanglement within individual jets
• 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
• The global geometrical property of jet events in high-energy nuclear collisions
• Long-range azimuthal correlations for partially coherent pion emission in proton-proton collisions