Beam energy dependence of elliptic and triangular flow with the AMPT model

Solanki, D.; Sorensen, P.; Basu, S.; Raniwala, R.; Nayak, T. K.

doi:10.1016/j.physletb.2013.02.028

Cited by 38 publications

(31 citation statements)

References 47 publications

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“…The agreement for v 2 is good, but the calculated v 3 is a bit high in panels (d) and (f). AMPT has also been used for v 3 from symmetric [50,51] and asymmetric collisions [52]. Predictions for v 3 from Parton Hadron String Dynamics [53] at 30%-40% centrality for |η| < 0.5 have been made by the subevent method with the event planes at 1.0 < |η| < 4.0, and show good agreement in the figure lower right.…”

Section: B Transverse Momentum Dependencementioning

confidence: 98%

Third harmonic flow of charged particles in Au+Au collisions atsNN=200 GeV

Adamczyk¹,

Adkins²,

Agakishiev³

et al. 2013

Phys. Rev. C

131

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We report measurements of the third harmonic coefficient of the azimuthal anisotropy, v 3 , known as triangular flow. The analysis is for charged particles in Au + Au collisions at √ s NN = 200 GeV, based on data from the STAR experiment at the BNL Relativistic Heavy Ion Collider. Two-particle correlations as a function of their pseudorapidity separation are fit with narrow and wide Gaussians. Measurements of triangular flow are extracted from the wide Gaussian, from two-particle cumulants with a pseudorapidity gap, and also from event plane analysis methods with a large pseudorapidity gap between the particles and the event plane. These results are 014904-2 THIRD HARMONIC FLOW OF CHARGED PARTICLES IN . . . 88, 014904 (2013) reported as a function of transverse momentum and centrality. A large dependence on the pseudorapidity gap is found. Results are compared with other experiments and model calculations. PHYSICAL REVIEW C

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Section: B Transverse Momentum Dependencementioning

confidence: 98%

Third harmonic flow of charged particles in Au+Au collisions atsNN=200 GeV

Adamczyk¹,

Adkins²,

Agakishiev³

et al. 2013

Phys. Rev. C

131

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“…The beam-energy dependence of the collective flow has been recently studied within several different models [3][4][5][6][7][8][9][10][11][12][13] with the main emphasis on search of signals of the onset of deconfinement. A non-monotonicity of the transverse-momentum integrated (p t -integrated) v 2 was predicted in Ref.…”

Section: Introductionmentioning

confidence: 99%

Elliptic flow in heavy-ion collisions at energiessNN=2.7–39GeV

Ivanov

Soldatov

2015

Phys. Rev. C

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The transverse-momentum integrated elliptic flow of charged particles at midrapidity, v2(charged), and that of identified hadrons from Au+Au collisions are computed in a wide range of incident energies 2.7 GeV ≤ √ sNN ≤ 39 GeV. The simulations are performed within a three-fluid model employing three different equations of state (EoS's): a purely hadronic EoS and two versions of the EoS involving the deconfinement transition-a first-order phase transition and a smooth crossover one. The present simulations demonstrate low sensitivity of v2(charged) to the EoS. All considered scenarios equally well reproduce recent STAR data on v2(charged) for mid-central Au+Au collisions and properly describe its change of sign at the incident energy decrease below √ sNN ≈ 3.5 GeV.The predicted integrated elliptic flow of various species exhibits a stronger dependence on the EoS. A noticeable sensitivity to the EoS is found for anti-baryons and, to a lesser extent, for K − mesons. In particular, the v2 excitation functions of anti-baryons exhibit a non-monotonicity within the deconfinement scenarios that was predicted by Kolb, Sollfrank and Heinz. However, low multiplicities of anti-baryons at √ sNN ≤ 10 GeV result in large fluctuations of their v2 which may wash out this non-monotonicity.

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“…The beam energy dependence of the collective flow has been recently studied with several different models [9][10][11][12][13][14]. The method chosen for the present study is a hybrid approach, where a transport model -a microscopic description of the system -is utilized for the nonequilibrium phases at the beginning and in the end of a heavy-ion collision event, while a macroscopic hydrodynamical description is used to model the hot and dense intermediate stage incorporating the phase transition between the QGP and hadronic matter.…”

Section: Introductionmentioning

confidence: 99%