Determining the jet transport coefficient 
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 from inclusive hadron suppression measurements using Bayesian parameter estimation

Cao, Shanshan; Chen, Y.; Coleman, J. P.; Mulligan, J. D.; Jacobs, P. M.; Soltz, R. A.; Angerami, A.; Arora, R.; Bass, Steffen A.; Cunqueiro, L.; Dai, T.; Du, Lingyan; Ehlers, R. J.; Elfner, Hannah; Everett, D.; Fan, Wenkai; Fries, Rainer J.; Gale, Charles; Garza, F.; He, Yang; Heffernan, M.; Heinz, Ulrich; Jacak, B. V.; Jeon, Sangyong; Ke, Weiyao; Kim, B.; Kordell, M.; Kumar, Amit; Majumder, Abhijit; Mak, Simon; McNelis, M.; Nattrass, C.; Oliinychenko, Dmytro; Park, C.; Paquet, Jean-François; Putschke, J.; Roland, G.; Silva, A.; Schenke, Björn; Schwiebert, Loren; Shen, Chun; Sirimanna, C.; Tachibana, Y.; Vujanovic, Gojko; Wang, X.-N.; Wolpert, Robert L.; Xu, Y.

doi:10.1103/physrevc.104.024905

Cited by 90 publications

(34 citation statements)

References 136 publications

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“…They are found to be directly proportional to the jet transport coefficient q which is defined as the transverse momentum broadening squared per unit length of propagation and can be related to the local gluon density distribution of the medium [15][16][17]. Experimental measurements of jet quenching and phenomenological extraction of the jet transport coefficient can provide some of the important properties of QGP [18][19][20][21][22].…”

Section: Introductionmentioning

confidence: 99%

Event-by-event jet anisotropy and hard-soft tomography of the quark-gluon plasma

He¹,

Chen²,

Luo³

et al. 2022

Preprint

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Suppression of jet spectra or jet quenching in high-energy heavy-ion collisions is caused by jet energy loss in the dense medium. The azimuthal anisotropy of jet energy loss in non-central heavy-ion collisions can lead to jet anisotropy which in turn can provide insight into the path-length dependence of jet quenching. This is investigated within the Linear Boltzmann Transport (LBT) model which simulates both elastic scattering and medium-induced gluon radiation based on perturbative QCD for jet shower and medium recoil partons as well as radiated gluons as they propagate through the quark-gluon plasma (QGP). The dynamical evolution of the QGP in each event of heavy-ion collisions is provided by the (3+1)D CLVisc hydrodynamic model with fully fluctuating initial conditions. This framework has been shown to describe the suppression of single inclusive jet spectra well. We calculate in this study the elliptic (v jet 2 ) and triangular (v jet 3 ) anisotropy coefficients of the single inclusive jet spectra in Pb+Pb collisions at the LHC energies. We investigate the colliding energy, centrality, jet transverse momentum dependence of the jet anisotropy, as well as their event-by-event correlation with the flow coefficients of the soft bulk hadrons. An approximate linear correlation between jet and bulk v2 is found. Effect of the bulk vn fluctuation on v jet n is found negligible. The jet-induced medium excitation, which is influenced by radial flow, is shown to enhance v jet 2 and the enhancement increases with the jet cone size. The jet elliptic anisotropy v jet 2 is also found to be slightly enhanced by the shear viscosity of the bulk medium in comparison to the LBT results when jets propagate through an ideal hydrodynamic QGP medium.

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Section: Introductionmentioning

confidence: 99%

Event-by-event jet anisotropy and hard-soft tomography of the quark-gluon plasma

He¹,

Chen²,

Luo³

et al. 2022

Preprint

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“…Refs. [20][21][22][23][24][25][26]), as well as the proton's fluctuating geometry, by comparing with the LHC data as in Ref. [27].…”

Section: Introductionmentioning

confidence: 99%

Bayesian inference of the fluctuating proton shape

Mäntysaari¹,

Schenke²,

Shen³

et al. 2022

Preprint

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Using Bayesian inference, we determine probabilistic constraints on the parameters describing the fluctuating structure of protons at high energy. We employ the color glass condensate framework supplemented with a model for the spatial structure of the proton, along with experimental data from the ZEUS and H1 Collaborations on coherent and incoherent diffractive J/ψ production in e+p collisions at HERA. This data is found to constrain most model parameters well. This work sets the stage for future global analyses, including experimental data from e+p, p+p, and p+A collisions, to constrain the fluctuating structure of nucleons along with properties of the final state.

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“…More recently, the jet transport coefficient extractions are continuing via the improving theoretical approaches with opacity-resummed medium induced radiation [21], the quasi-particle collection for QGP based on the linear Boltzmann transport model [22], as well as the advanced analytical technique within JETSCAPE framework [23].…”

Section: Introductionmentioning

confidence: 99%

Extracting the jet transport coefficient from hadron suppressions by confronting current NLO parton fragmentation functions

Han¹,

Xie²,

Zhang³

2022

Preprint

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Nuclear modification factors of single hadrons and dihadrons at large transverse momentum (pT) in high-energy heavy-ion collisions are studied in a next-to-leading-order (NLO) perturbative QCD parton model. Parton fragmentation functions (FFs) in A + A collisions are modified due to jet energy loss which is proportional to the jet transport coefficient q characterizing the interaction between the parton jet and the produced medium. By confronting 6 current sets of NLO parton FFs for large pT hadron productions, we extract q quantitatively via a global fit to data for both single hadron and dihadron suppressions, and obtain q/T 3 = 4.74 − 6.72 at T = 370 MeV in central Au + Au collisions at √ sNN = 200 GeV, and q/T 3 = 3.07 − 3.98 at T = 480 MeV in central P b + P b collisions at √ sNN = 2.76 TeV. The numerical results show that the uncertainties for q extraction are brought by the different contributions of gluon-to-hadron in the 6 sets of FFs due to gluon energy loss being 9/4 times of quark energy loss.

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Determining the jet transport coefficient q̂ from inclusive hadron suppression measurements using Bayesian parameter estimation

Cited by 90 publications

References 136 publications

Event-by-event jet anisotropy and hard-soft tomography of the quark-gluon plasma

Event-by-event jet anisotropy and hard-soft tomography of the quark-gluon plasma

Bayesian inference of the fluctuating proton shape

Extracting the jet transport coefficient from hadron suppressions by confronting current NLO parton fragmentation functions

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