The BEST framework for the search for the QCD critical point and the chiral magnetic effect

An, Xin; Bluhm, Marcus; Du, Lingyan; Dunne, Gerald V.; Elfner, Hannah; Gale, Charles; Grefa, Joaquin; Heinz, Ulrich; Huang, Anping; Karthein, Jamie M.; Kharzeev, Dmitri E.; Koch, Volker; Liao, Jinfeng; Li, Shiyong; Martínez, M. Lucio; McNelis, M.; Mroczek, Débora; Mukherjee, Swagato; Nahrgang, Marlene; Acuña, Angel R. Nava; Noronha-Hostler, Jacquelyn; Oliinychenko, Dmytro; Parotto, Paolo; Portillo, Israel; Pradeep, Maneesha Sushama; Pratt, Scott; Rajagopal, Krishna; Ratti, Claudia; Ridgway, Gregory W.; Schäfer, Thomas; Schenke, Björn; Shen, Chun; Shi, Shuzhe; Singh, Mayank; Skokov, Vladimir V.; Son, D.; Sorensen, Agnieszka; Stephanov, Mikhail; Venugopalan, Raju; Vovchenko, Volodymyr; Weller, Ryan; Yee, Ho‐Ung; Yin, Yi

doi:10.1016/j.nuclphysa.2021.122343

Cited by 95 publications

(45 citation statements)

References 236 publications

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“…Notice also that the critical point in all three variants is outside the regime probed by the second phase of the beam energy scan at RHIC [79], but will be probed in future experiments at FAIR and at NICA. Finally, our numbers lie close to the chemical freeze-out curve extracted from heavy-ion experiments (see, e.g., [80,81]). Our numbers are actually slightly below the experimental data, but consistent with the curve if the precision of the data and our approach are taken into account.…”

Section: Resultssupporting

confidence: 82%

Dense and Hot QCD at Strong Coupling

Demircik¹,

Ecker²,

Järvinen³

2021

Preprint

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We present a novel framework for the equation of state of dense and hot Quantum Chromodynamics (QCD), which focuses on the region of the phase diagram relevant for neutron star mergers and core-collapse supernovae. The model combines predictions from the gauge/gravity duality with input from lattice field theory, QCD perturbation theory, chiral effective theory and statistical modeling. It is therefore, by construction, in good agreement with theoretical constraints both at low and high densities and temperatures. The main ingredients of our setup are the non-perturbative V-QCD model based on the gauge/gravity duality, a van der Waals model for nucleon liquid, and the DD2 version of the Hempel-Schaffner-Bielich statistical model of nuclear matter. By consistently combining these models, we also obtain a description for the nuclear to quark matter phase transition and its critical endpoint. The parameter dependence of the model is represented by three (soft, intermediate and stiff) variants of the equation of state, all of which agree with observational constraints from neutron stars and their mergers. We discuss resulting constraints for the equation of state, predictions for neutron stars and the location of the critical point.

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Section: Resultssupporting

confidence: 82%

Dense and Hot QCD at Strong Coupling

Demircik¹,

Ecker²,

Järvinen³

2021

Preprint

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“…Recently, the STAR Collaboration performed a blind analysis of a large data sample of approximately 3.8 billion isobar collisions which so far have yielded a null result [25]. However, new methods for experimental determination of CME have been proposed [26,27]. Moreover, the chiral imbalance has also crucial effects on microscopic transport phenomena [22,[28][29][30], the collective modes propagating in the medium [31][32][33], fermion damping rate [34] and collisional energy loss of a fermion [33].…”

Section: Introductionmentioning

confidence: 99%

Electromagnetic spectral functions in hot and dense chirally imbalanced quark matter

Ghosh,

Chaudhuri,

Sarkar

et al. 2022

Preprint

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“…In the QCD phase diagram a particularly interesting point is the conjectured critical end point (CEP) which is an end point of first order phase transition line. A lot of theoretical studies has been carried out to find the possible signatures of CEP [18][19][20][21][22][23][24][25][26][27][28][29][30] and on the experimental side, the Beam Energy Scan (BES) program has been devoted at the Super Proton Synchrotron (SPS) and at the Relativistic Heavy Ion Collider (RHIC) to search for possible signatures of the CEP [31,32].…”

Section: Introductionmentioning

confidence: 99%

Dynamic density correlations in a baryon rich fluid using Mori-Zwanzig projection operator method

Kadam

2022

Preprint

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In this work we calculate the dynamic density correlations using Mori-Zwanzig projection operator method. With a judicious choice of slow variables we derive the evolution equations for these slow variables starting from generalised Langevin equation. We get the hydrodynamic form of density correlations function which consist of two acoustic peaks: also called Brillouin peaks, and one thermal peak: also called Rayleigh peak. We then estimate the dynamic density correlations near the critical point using critical exponents extracted from the statistical bootstrap model of hadronic matter. We find that the bulk viscosity contributes to the sound attenuation at leading order ∼ |t| − 5 4 while the thermal conductivity contribute at sub-leading order ∼ |t| − 3 4 . On the other hand, only the thermal conductivity contributes at leading order ∼ |t| 1 4 to the thermal diffusivity. We discuss the implications of these results in search for QCD critical point in the heavy-ion collision experiments.

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The BEST framework for the search for the QCD critical point and the chiral magnetic effect

Cited by 95 publications

References 236 publications

Dense and Hot QCD at Strong Coupling

Dense and Hot QCD at Strong Coupling

Electromagnetic spectral functions in hot and dense chirally imbalanced quark matter

Dynamic density correlations in a baryon rich fluid using Mori-Zwanzig projection operator method

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