Hydro+ in action

Rajagopal, Krishna; Ridgway, Gregory W.; Weller, Ryan; Yin, Yi

doi:10.1016/j.nuclphysa.2020.121796

Cited by 3 publications

(2 citation statements)

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“…Various hydrodynamic approaches are being developed to include the effect of density fluctuations, and they include the stochastic fluid dynamics [47][48][49][50][51], the hydrokinetic approach [52][53][54][55], and the nonequilibrium chiral fluid dynamics [22,24,[56][57][58][59]. Instead of the hydrodynamic model, we extend in the present study the partonic transport model of Refs.…”

Section: Introductionmentioning

confidence: 99%

Enhanced yield ratio of light nuclei in heavy ion collisions with a first-order QCD phase transition

Sun,

Ko,

et al. 2020

Preprint

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Using a transport model that includes a first-order chiral phase transition between the partonic and the hadronic matter, we study the development of density fluctuations in the matter produced in heavy ion collisions as it undergoes the phase transition, and their time evolution in later hadronic stage of the collisions. Using the coalescence model to describe the production of deuterons and tritons from nucleons at the kinetic freeze out, we find that the yield ratio NtNp/N 2 d , where Np, N d , and Nt are, respectively, the proton, deuteron, and triton numbers, is enhanced if the evolution trajectory of the produced matter in the QCD phase diagram passes through the spinodal region of a first-order chiral phase transition.

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Section: Introductionmentioning

confidence: 99%

Enhanced yield ratio of light nuclei in heavy ion collisions with a first-order QCD phase transition

Sun,

Ko,

et al. 2020

Preprint

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“…Such a non-monotonic behavior in the collision energy dependence of the yield ratio N t N p /N 2 d has indeed been seen in the preliminary data from the STAR Collaboration. Our study has thus led to the possibility of extracting the information of the CEP and the phase boundary of QCD phase diagram from comparing the precisely measured data on the yields of light nuclei in heavy-ion collisions with those from theoretical models based on the transport approach [28] and the various hydrodynamic approaches [49][50][51][52][53].…”

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confidence: 99%

Effects of QCD critical point on light nuclei production

Sun,

Ko,

2020

Preprint

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Using the nucleon coalescence model, which can naturally take into account the correlations in the nucleon density distribution, we study the effects of QCD critical point on light nuclei production in relativistic heavy-ion collisions. We find that the yield ratio NtNp/N 2 d of proton (p), deuteron (d) and triton (t) increases monotonically with the nucleon density correlation length, which is expected to increase significantly near the critical point in the QCD phase diagram. Our study thus demonstrates that the yield ratio NtNp/N 2 d can be used as a sensitive probe of the QCD critical phenomenon. We further discuss the relation between the QCD phase transitions in heavy-ion collisions and the possible non-monotonic behavior of NtNp/N 2 d in its collision energy dependence.

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