Investigation of transverse collective flow of intermediate mass fragments

Kohley, Z.; May, L. W.; Wuenschel, S.; Bonasera, A.; Hagel, K.; Tripathi, R.; Wada, R.; Souliotis, G. A.; Shetty, D. V.; Galanopoulos, S.; Mehlman, M.; Smith, W. B.; Soisson, S. N.; Stein, B. C.; Yennello, S. J.

doi:10.1103/physrevc.82.064601

Cited by 49 publications

(45 citation statements)

References 38 publications

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“…Improved quantum molecular dynamics simulations describing both isospin diffusion data and double ratios of neutron and proton spectra, support a similar range of L values for a symmetry energy at saturation between 28 and 34 MeV [16]. Experiments on transverse collective flows of hydrogen and helium isotopes [95,96] favor similar values of L, as well as the predictions from neutron-proton emission data [15] (L ∼ 50 MeV) and the isotopic-scaling results of ref. [14] (L ∼ 65 MeV).…”

Section: Discussion Of Results and Comparison With Other Estimates Ofsupporting

confidence: 62%

Density dependence of the symmetry energy from neutron skin thickness in finite nuclei

et al. 2014

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Abstract. The density dependence of the symmetry energy around saturation density, characterized by the slope parameter L, is studied using information provided by the neutron skin thickness in finite nuclei. An estimate for L is obtained from experimental data on neutron skins extracted from antiprotonic atoms. We also discuss the ability of parity-violating elastic electron scattering to obtain information on the neutron skin thickness in 208 Pb and to constrain the density dependence of the nuclear symmetry energy. The size and shape of the neutron density distribution of 208 Pb predicted by mean-field models is briefly addressed. We conclude with a comparative overview of the L values predicted by several existing determinations.

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Section: Discussion Of Results and Comparison With Other Estimates Ofsupporting

confidence: 62%

Density dependence of the symmetry energy from neutron skin thickness in finite nuclei

et al. 2014

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“…The IMF flow was shown to be sensitive to the density dependence of the symmetry energy through comparison with the antisymmetrized molecular dynamics model [28]. A stiff E sym (ρ) provided the best agreement with the experimental data [10]. In this paper, the sensitivity of the mid-peripheral IMF flow results to E sym (ρ) are further examined through comparison with the antisymmetrized molecular dynamics [28], constrained molecular dynamics [29,30], and stochastic mean-field [31] models.…”

Section: Introductionmentioning

confidence: 96%

“…Heavy-ion collisions (HICs) have begun to provide constraints on the density dependence of the symmetry energy at sub-saturation densities (ρ < 0.16f m −3 ) [7][8][9][10][11][12][13][14]. However, these constraints are dependent on comparisons with theoretical transport calculations.…”

Section: Introductionmentioning

confidence: 99%

“…Collective flow has been predicted to be a useful probe for applying constraints on the asymmetric part of the EoS at both high and low densities [7,8,10,[23][24][25][26][27]. Recently, we examined the transverse flow of inter-mediate mass fragments (IMFs) [10].…”

Section: Introductionmentioning

confidence: 99%

“…Recently, we examined the transverse flow of inter-mediate mass fragments (IMFs) [10]. The IMF flow was shown to be sensitive to the density dependence of the symmetry energy through comparison with the antisymmetrized molecular dynamics model [28].…”

Section: Introductionmentioning

confidence: 99%

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Sensitivity of intermediate mass fragment flows to the symmetry energy

et al. 2012

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The NIMROD-ISiS array was used to study the In order to explore the model dependence of the results, the antisymmetrized molecular dynamics, constrained molecular dynamics, and stochastic mean field models were each compared to the experimental results to extract information on the form of the symmetry energy. The results demonstrate that sensitivity of the models to the nuclear Equation of State can vary significantly based on the treatment of the nuclear dynamics. Despite the differences in the sensitivity, improved agreement with the experimental data is observed for each model with a stiff density dependence of the symmetry energy.

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Progress of quantum molecular dynamics model and its applications in heavy ion collisions

Zhang

Wang

et al. 2020

Front. Phys.

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In this review article, we first briefly introduce the transport theory and quantum molecular dynamics model applied in the study of the heavy ion collisions from low to intermediate energies.The developments of improved quantum molecular dynamics model (ImQMD) and ultra-relativistic quantum molecular dynamics model (UrQMD), are reviewed. The reaction mechanism and phenomena related to the fusion, multinucleon transfer, fragmentation, collective flow and particle production are reviewed and discussed within the framework of the two models. The constraints on the isospin asymmetric nuclear equation of state and in-medium nucleon-nucleon cross sections by comparing the heavy ion collision data with transport models calculations in last decades are also discussed, and the uncertainties of these constraints are analyzed as well. Finally, we discuss the future direction of the development of the transport models for improving the understanding of the reaction mechanism, the descriptions of various observables, the constraint on the nuclear equation of state, as well as for the constraint on in-medium nucleon-nucleon cross sections.

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Investigation of transverse collective flow of intermediate mass fragments

Cited by 49 publications

References 38 publications

Density dependence of the symmetry energy from neutron skin thickness in finite nuclei

Density dependence of the symmetry energy from neutron skin thickness in finite nuclei

Sensitivity of intermediate mass fragment flows to the symmetry energy

Progress of quantum molecular dynamics model and its applications in heavy ion collisions

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