Bayesian extraction of jet energy loss distributions in heavy-ion collisions

Abstract

Based on the factorization in perturbative QCD, a jet cross sections in heavy-ion collisions can be expressed as a convolution of the jet cross section in $p+p$ collisions and a jet energy loss distribution. Using this simple expression and the Markov Chain Monte Carlo method, we carry out Bayesian analyses of experimental data on jet spectra to extract energy loss distributions for both single inclusive and $\gamma$-triggered jets in $Pb+Pb$ collisions with different centralities at two colliding energies at the Large Hadron Collider. The average jet energy loss has a dependence on the initial jet energy that is slightly stronger than a logarithmic form and decreases from central to peripheral collisions. The extracted jet energy loss distributions with a scaling behavior in $x=\Delta p_T/⟨\Delta p_T⟩$ have a large width. These are consistent with the linear Boltzmann transport model simulations, in which the observed jet quenching is caused on the average by only a few out-of-cone scatterings.

arXiv comment5 pages in RevTex, 3 figures, final version to appear in Phys. Rev. Letters

References in corpus (37)

• A Brief Introduction to PYTHIA 8.1
• Formation of dense partonic matter in relativistic nucleus-nucleus collisions at RHIC: Experimental evaluation by the PHENIX collaboration
• Radiative energy loss and $p_{\perp }$-broadening of high energy partons in nuclei
• EPS09 - a New Generation of NLO and LO Nuclear Parton Distribution Functions
• Applying Bayesian parameter estimation to relativistic heavy-ion collisions: simultaneous characterization of the initial state and quark-gluon plasma medium
• Extracting jet transport coefficient from jet quenching at RHIC and LHC
• Quenching of hadron spectra in media
• Linear Boltzmann Transport for Jet Propagation in the Quark-Gluon Plasma: Elastic Processes and Medium Recoil
• Studies of jet quenching using isolated-photon + jet correlations in PbPb and pp collisions at sqrt(s[NN]) = 2.76 TeV
• Measurements of the Nuclear Modification Factor for Jets in Pb+Pb Collisions at $\sqrt{s_{\mathrm{NN}}}=2.76$ TeV with the ATLAS Detector
• Systematic Comparison of Jet Energy-Loss Schemes in a realistic hydrodynamic medium
• Constraining the Eq. of State of Super-Hadronic Matter from Heavy-Ion Collisions
• Medium Modification of γ-jets in High-energy Heavy-ion Collisions
• Measurement of the nuclear modification factor for inclusive jets in Pb+Pb collisions at $\sqrt{s_{\mathrm{NN}}}=5.02$ TeV with the ATLAS detector
• The semi-inclusive jet function in SCET and small radius resummation for inclusive jet production
• 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
• Small Shear Viscosity of a Quark-Gluon Plasma Implies Strong Jet Quenching
• A theory of jet shapes and cross sections: from hadrons to nuclei
• A data-driven analysis for the temperature and momentum dependence of the heavy quark diffusion coefficient in relativistic heavy-ion collisions
• Angular Structure of Jet Quenching Within a Hybrid Strong/Weak Coupling Model
• Full jet in quark-gluon plasma with hydrodynamic medium response
• Jet tomography of high-energy nucleus-nucleus collisions at next-to-leading order
• Quantitative Constraints on the Transport Properties of Hot Partonic Matter from Semi-Inclusive Single High Transverse Momentum Pion Suppression in Au+Au collisions at sqrt(s_NN) = 200 GeV
• Interplaying mechanisms behind single inclusive jet suppression in heavy-ion collisions
• Multiple jets and $\gamma$-jet correlation in high-energy heavy-ion collisions
• Sensitivity of jet substructure to jet-induced medium response
• Bulk matter evolution and extraction of jet transport parameter in heavy-ion collisions at RHIC
• Interpreting Single Jet Measurements in Pb+Pb Collisions at the LHC
• Measurement of photon-jet transverse momentum correlations in 5.02 TeV Pb+Pb and $pp$ collisions with ATLAS
• Inclusive production of small radius jets in heavy-ion collisions
• Sudakov suppression of jets in QCD media
• Quenching of Hadron Spectra in Heavy Ion Collisions at the LHC
• Constraint fitting of experimental data with a jet quenching model embedded in a hydrodynamical bulk medium
• Study of jet quenching with isolated-photon+jet correlations in PbPb and pp collisions at $\sqrt{s_{{}_{\mathrm{NN}}}}=$ 5.02 TeV
• Interplay between Mach cone and radial expansion and its signal in $\gamma$-jet events
• Effect of medium recoil and $p_T$ broadening on single inclusive jet suppression in high-energy heavy-ion collisions

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