Prospects for the dense baryonic matter research at NICA

Kekelidze, V.; Kovalenko, A. D.; Lednický, R.; Matveev, V.; Мешков, И. Н.; Sorin, Alexander; Trubnikov, G. V.

doi:10.1016/j.nuclphysa.2016.03.019

Cited by 48 publications

(30 citation statements)

References 7 publications

(6 reference statements)

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“…QCD matter off the ground state, can be created at different T and µ B by varying the colliding systems size, beam energy and impact parameters, to search for the critical endpoint. This is one of the prime goals of the Beam-Energy Scan (BES) program at Relativistic Heavy Ion Collider (RHIC) [5][6][7][8][9], the NA61 experiment at the CERN-SPS [10], the HADES and CBM experiments at GSI and FAIR [11], as well as dedicated future programs at NICA [12] and J-PARC [13].…”

Section: Introductionmentioning

confidence: 99%

Cumulants of the baryon number from central Au+Au collision at Elab=1.23 GeV/nucleon reveal the nuclear mean-field potentials

Wang

Steinheimer

et al. 2018

Phys. Rev. C

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Fluctuations of the baryon number in relativistic heavy-ion collisions are a promising observable to explore the structure of the QCD phase diagram. The cumulant ratios in heavy ion collisions at intermediate energies (√ sNN < 7 GeV) have not been studied to date. We investigate the effects of mean field potential and clustering on the cumulant ratios of baryon and proton number distributions in Au+Au collisions at beam energy of 1.23 GeV/nucleon as measured by the HADES Collaboration at GSI. Ultrarelativistic Quantum Molecular Dynamics (UrQMD) and the JAM model are used to calculate the cumulants with different mean field potentials. It is found that the cumulant ratios are strongly time dependent. At the early stage, the effects of the potentials on the fluctuations of the particle multiplicity in momentum space are relatively weak. The mean fields enhance the fluctuations during the expansion stage, especially for small rapidity acceptance windows. The enhancement of cumulant ratios for free protons is strongly suppressed as compared to that for all baryons. The mean field potentials and the clustering play an important role for the measured cumulant ratios at intermediate energy.

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Section: Introductionmentioning

confidence: 99%

Cumulants of the baryon number from central Au+Au collision at Elab=1.23 GeV/nucleon reveal the nuclear mean-field potentials

Wang

Steinheimer

et al. 2018

Phys. Rev. C

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“…-3 - [4][5][6][7] and Au-Au [8][9][10][11][12] collisions (see text) as a function of p sNN. Measurements for inelastic pp collisions and pp collisions as a function of p s are also shown [26][27][28] along with those from non-single diffractive p-A and d-A collisions [29,30].…”

Section: Introductionmentioning

confidence: 99%

Holography for Heavy Ions Collisions at LHC and NICA

Aref’eva

2017

EPJ Web Conf.

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Abstract. This is a contribution for the Proceedings of 5th International Conference on New Frontiers in Physics (ICNFP 2016), held at Crete, 6-14 July 2016. Our goal is to obtain phenomenologically reliable insights for the physics of the quark-gluon plasma (QGP) from the holography. I briefly review how in the holographical setup one can describe the QGP formation in heavy ion collisions and how to get quantitatively the main characteristics of the QGP formation -the total multiplicity and the thermalization time. To fit the experimental form of dependence of total multiplicity on energy, obtained at LHC, we have to deal with a special anisotropic holographic model, related with the Lifshitz-type background. Our conjecture is that this Lifshitz-type background with non-zero chemical potential can be used to describe future data expected from NICA. In particular, we present the results of calculations the holographic confinement/deconfinement phase transition in the (µ, T ) (chemical potential, temperature) plane in this anizotropic background and show the dependence of the transition line on the orientation of the quark pair. This dependence leads to a non-sharp character of physical confinement/deconfinement phase in the (µ, T )-plane. We use the bottom-up soft wall approach incorporating quark confinement deforming factor and vector field providing the non-zero chemical potential. In this model we also estimate the holographic photon production.

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“…Note that the PHSD results show a fourfold higher value, v 4 /(v 2 ) 2 ≈ 2 [48], for a wide range of beam energies in min-bias Au + Au collisions. Predicted v 4 signal can be studied experimentally at future experiments such as RHIC-BESII [49], FAIR [50,51] NICA [52], and J-PARC-HI [53], which offer the best opportunities to explore the compressed baryonic matter, and reveal the phase structure of QCD.…”

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confidence: 99%

The enhancement of v4 in nuclear collisions at the highest densities signals a first-order phase transition

2018

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The beam energy dependence of v 4 (the quadrupole moment of the transverse radial flow) is sensitive to the nuclear equation of state (EoS) in mid-central Au + Au collisions at the energy range of 3 < √ s N N < 30 GeV, which is investigated within the hadronic transport model JAM. Different equations of state, namely, a free hadron gas, a first-order phase transition and a crossover are compared. An enhancement of v 4 at √ s N N ≈ 6 GeV is predicted for an EoS with a first-order phase transition. This enhanced v 4 flow is driven by both the enhancement of v 2 as well as the positive contribution to v 4 from the squeeze-out of spectator particles which turn into participants due to the admixture of the strong collective flow in the shocked, compressed nuclear matter.arXiv:1809.04237v1 [nucl-th]

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Prospects for the dense baryonic matter research at NICA

Cited by 48 publications

References 7 publications

Cumulants of the baryon number from central Au+Au collision at Elab=1.23 GeV/nucleon reveal the nuclear mean-field potentials

Cumulants of the baryon number from central Au+Au collision at Elab=1.23 GeV/nucleon reveal the nuclear mean-field potentials

Holography for Heavy Ions Collisions at LHC and NICA

The enhancement of v4 in nuclear collisions at the highest densities signals a first-order phase transition

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