Scale for the Phase Diagram of Quantum Chromodynamics

Gupta, Sourendu; Luo, X.; Mohanty, B.; Ritter, H. G.; Xu, N.

doi:10.1126/science.1204621

Cited by 317 publications

(347 citation statements)

References 36 publications

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“…The higher moments (skewness S and kurtosis κ) of distributions of conserved quantities such as net-baryons, net-charge, and net-strangeness, have a better sensitivity to the correlation length compared to variance σ 2 [25]. Also, the moment products such as κσ 2 and S σ can be related to the ratios of order susceptibilities calculated in Lattice QCD and HRG model as κσ 2 [26]. One of the advantages of using these products is that they cancel the volume effects.…”

Section: Search For Qcd Critical Pointmentioning

confidence: 99%

STAR Results from the RHIC Beam Energy Scan-I

Kumar

2013

Nuclear Physics A

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The Beam Energy Scan (BES) program is being pursued at RHIC to study the QCD phase diagram, and search for the possible QCD phase boundary and possible QCD critical point. The data for Phase-I of the BES program have been collected for Au+Au collisions at center-of-mass energies ( √ s NN ) of 7.7, 11.5, 19.6, 27, and 39 GeV. These collision energies allowed the STAR experiment to cover a wide range of baryon chemical potential µ B (100-400 MeV) in the QCD phase diagram. We report on several interesting results from the BES Phase-I covering the high net-baryon density region. These results shed light on particle production mechanism and freezeout conditions, first-order phase transition and "turn-off" of QGP signatures, and existence of a critical point in the phase diagram. Finally, we give an outlook for the future BES Phase-II program and a possible fixed target program at STAR.

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Section: Search For Qcd Critical Pointmentioning

confidence: 99%

STAR Results from the RHIC Beam Energy Scan-I

Kumar

2013

Nuclear Physics A

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“…These fluctuations are sensitive to the correlation length (ξ) [24] and can be directly connected to the susceptibility of the system computed in theoretical calculations, such as Lattice QCD [25,26,27] and HRG models [28]. The STAR experiment has measured various order fluctuations of net-proton (N p − Np, proxy for net-baryon), net-charge and net-kaon (proxy for net-strangeness) numbers in the Au+Au collisons at √ s NN =7.7, 11.5, 14.5, 19.6, 27, 39, 62.4 and 200 GeV [29,30,31].…”

Section: Net-proton Number Fluctuationsmentioning

confidence: 99%

Exploring the QCD Phase Structure with Beam Energy Scan in Heavy-ion Collisions

Luo¹

2016

Nuclear Physics A

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Beam energy scan programs in heavy-ion collisions aim to explore the QCD phase structure at high baryon density. Sensitive observables are applied to probe the signatures of the QCD phase transition and critical point in heavy-ion collisions at RHIC and SPS. Intriguing structures, such as dip, peak and oscillation, have been observed in the energy dependence of various observables. In this paper, an overview is given and corresponding physics implications will be discussed for the experimental highlights from the beam energy scan programs at the STAR, PHENIX and NA61/SHINE experiments. Furthermore, the beam energy scan phase II at RHIC (2019-2020) and other future experimental facilities for studying the physics at low energies will be also discussed.

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“…Several QCD-based calculations [3,4] show that at lower T and higher µ B a first-order phase transition may take place. The point in the QCD phase diagram, where the first order phase transition ends, is the QCD critical point [5]. In the low-T , and low and intermediate µ B phase, interacting hadronic matter in the ground state can be well described in terms of a gas of non-interacting hadrons and resonances -the Hadron Resonance Gas (HRG) model [6].…”

Section: Introductionmentioning

confidence: 99%

Strangeness at Intermediate Baryon Density

Tlusty

2018

EPJ Web Conf.

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Abstract.Exploration of the QCD phase diagram has been one of the main programs of contemporary nuclear physics. The intermediate baryon density region covers a broad range of the baryon chemical potential, between 100 and 700 MeV, and is expected to include a possible critial point at the end of a phase equilibrium curve between the hadron gas and quark gluon plasma phases. Experimental programs at the SPS and RHIC facilities have provided valuable insights in this range. These proceedings motivate the exploration of the QCD phase diagram through the use of strangeness. A selection of relevant experimental results from RHIC and SPS beam energy scan programs with associated theoretical predictions is presented along with a discussion of possible physical conclusions and future plans.

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Scale for the Phase Diagram of Quantum Chromodynamics

Cited by 317 publications

References 36 publications

STAR Results from the RHIC Beam Energy Scan-I

STAR Results from the RHIC Beam Energy Scan-I

Exploring the QCD Phase Structure with Beam Energy Scan in Heavy-ion Collisions

Strangeness at Intermediate Baryon Density

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