Decoding the phase structure of QCD via particle production at high energy

Andronic, A.; Braun‐Munzinger, P.; Redlich, K.; Stachel, J.

doi:10.1038/s41586-018-0491-6

Cited by 712 publications

(797 citation statements)

References 150 publications

(216 reference statements)

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“…The freeze-out properties provide evolution information on the collision system, which helps us to understand the expansion of the fireball [10,16,17]. The thermal model successfully describes the production of particles in heavy-ion collisions with a few parameters such as the chemical freeze-out temperature, baryon chemical potential, and fireball volume.…”

Section: Introductionmentioning

confidence: 99%

Nuclear system size scan for freeze-out properties in relativistic heavy-ion collisions by using a multiphase transport model

Wang

Zhang

2020

Phys. Rev. C

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A system size scan program was recently proposed for the STAR experiments at the Relativistic Heavy Ion Collider (RHIC). In this study, we employ a multiphase transport (AMPT) model for considering the bulk properties at the freeze-out stage for 10 B + 10 B, 12 C + 12 C, 16 O + 16 O, 20 Ne + 20 Ne, 40 Ca + 40 Ca, 96 Zr + 96 Zr, and 197 Au + 197 Au collisions at RHIC energies √ sNN of 200, 20, and 7.7 GeV. The results for 197 Au + 197 Au collisions are comparable with those of previous experimental STAR data. The transverse momentum pT spectra of charged particles (π ± , K ± , p, andp) at the kinetic freeze-out stage, based on a blast-wave model, are also discussed. In addition, we use a statistical thermal model to extract the parameters at the chemical freeze-out stage, which agree with those from other thermal model calculations. It was found that there is a competitive relationship between the kinetic freeze-out parameter T kin and the radial expansion velocity βT , which also agrees with the STAR or ALICE results. We found that the chemical freezeout strangeness potential µs remains constant in all collision systems and that the fireball radius R is dominated by NPart , which can be well fitted by a function of a NPart b with b ≈ 1/3. In addition, we calculated the nuclear modification factors for different collision systems with respect to the 10 B + 10 B system, and found that they present a gradual suppression within a higher pT range from small to large systems.be studied through the transverse momentum (p T ) spectra of the particles.

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Section: Introductionmentioning

confidence: 99%

Nuclear system size scan for freeze-out properties in relativistic heavy-ion collisions by using a multiphase transport model

Wang

Zhang

2020

Phys. Rev. C

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“…Instead of keeping m 1 at PDG values, we allow for larger spacings and thus get larger dissociation temperatures at given m 0 . Note that, according to the thermo-statistical hadronization model [22], T dis ≥ 155 MeV is required for all (ground state) hadron species -otherwise the impressive coverage of hadron abundances ranging over nine orders of magnitude would be hardly understandable. Employing the QCD-related thermal background is quantitatively important.…”

Section: Probe Vector Mesonsmentioning

confidence: 99%

“…The yields of various hadron species, light nuclei and anti-nuclei -even such ones which are only very loosely bound [21] -emerging from heavy-ion collisions at LHC energies are described by the thermo-statistical model [22] with high accuracy. These yields span an interval of nine orders of magnitude.…”

Section: Introductionmentioning

confidence: 99%

“…Due to the near-perfect matter-antimatter symmetry at top LHC energies the baryo-chemical potential µ B is exceedingly small, µ B /T f o 1. It is argued in [22] that the freeze-out of colorneutral objects happens just at the demarcation region of hadron matter to quarkgluon plasma, i.e. confinement vs. deconfinement strong-interaction matter.…”

Section: Introductionmentioning

confidence: 99%

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Holographic vector mesons in a dilaton background

Zöllner

Kämpfer

2018

J. Phys.: Conf. Ser.

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A holographic model of probe vector mesons (quarkonia) is presented, where the dynamical gravity-dilaton background is adjusted to the thermodynamics of 2 +1 flavor QCD with physical quark masses. The vector meson action is modified to account for various quark masses. We focus on the Φ, J/ψ and Υ meson melting in agreement with hadron phenomenology in heavy-ion collisions at LHC, that is the formation of hadrons at the observed freeze-out temperature of 155 MeV.

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“…In ultra-relativistic heavy-ion collisions at BNL-RHIC and CERN-LHC, the quark-gluon plasma (QGP) is believed to be created [25][26][27][28][29][30][31][32]. Studying the properties of QGP is one of the main goals of these experiments.…”

Section: Introductionmentioning

confidence: 99%

Clustering structure effect on Hanbury-Brown–Twiss correlation in $$^{12}\hbox {C} {+^{197}}\hbox {Au}$$ collisions at 200 GeV

Zhang

et al. 2020

Eur. Phys. J. A

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Through 12 C + 197 Au collisions at √ sNN = 200 GeV using a multiphase transport (AMPT) model, the azimuthal angle dependences of the Hanbury Brown-Twiss (HBT) radii relative to the second-and third-order participant plane from π-π correlations are discussed. Three initial geometric configurations of 12 C, namely three-α-cluster triangle, three-α-cluster chain and Woods-Saxon distribution of nucleons, are taken into account, and their effects on the correlations are investigated. The ratio of the third-to the second-order HBT radii R 2 o(s),3 /R 2 o(s),2 is shown to be a clear probe for three configurations. In addition, this work presents the hadronic rescattering time evolution of the azimuthally dependent HBT radii. From the present study, one can learn that the HBT correlation from identical particles at freeze-out is able to provide the information of different initial configurations as collective flow proposed before.

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Decoding the phase structure of QCD via particle production at high energy

Cited by 712 publications

References 150 publications

Nuclear system size scan for freeze-out properties in relativistic heavy-ion collisions by using a multiphase transport model

Nuclear system size scan for freeze-out properties in relativistic heavy-ion collisions by using a multiphase transport model

Holographic vector mesons in a dilaton background

Clustering structure effect on Hanbury-Brown–Twiss correlation in $$^{12}\hbox {C} {+^{197}}\hbox {Au}$$ collisions at 200 GeV

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