Search results for "Nuclear equation of state"

showing 3 items of 3 documents

The ASY-EOS experiment at GSI: Investigating the symmetry energy at supra-saturation densities

2012

The elliptic-flow ratio of neutrons with respect to protons in reactions of neutron rich heavy-ions systems at intermediate energies has been proposed as an observable sensitive to the strength of the symmetry term in the nuclear Equation Of State (EOS) at supra-saturation densities. The recent results obtained from the existing FOPI/LAND data for $^{197}$Au+$^{197}$Au collisions at 400 MeV/nucleon in comparison with the UrQMD model allowed a first estimate of the symmetry term of the EOS but suffer from a considerable statistical uncertainty. In order to obtain an improved data set for Au+Au collisions and to extend the study to other systems, a new experiment was carried out at the GSI la…

Particle physicsHistoryQC1-999Nuclear TheoryFOS: Physical sciencesand isobaric spin 24.10.Pa Thermal and statistical models[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]EducationNuclear physicsPhysics and Astronomy (all)nuclear physics; heavy-ions; symmetry energy; Au+Au collisionsNeutronNuclear Experiment (nucl-ex)Nuclear ExperimentNuclear ExperimentComputingMilieux_MISCELLANEOUSPhysicssezelePhysicsOrder (ring theory)Nuclear equation of stateObservableNuclear Experiment; Nuclear Experiment21.65.-f Nuclear matter 27.80.+w 190(less-than-or-equal-to)A(less-than-or-equal-to)219 24.60.-k Statistical theory and fluctuations 25.75.Gz Particle correlations and fluctuations 21.10.Hw SpinSymmetry (physics)Term (time)Computer Science ApplicationsparityNuclear reactionsSaturation (chemistry)NucleonEnergy (signal processing)
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N/Z effects on evaporation residue emission near fragmentation threshold

2011

We will discuss results concerning the fate of hot nuclear systems populated in 40,48 Ca+ 40,48 Ca reactions at 25 MeV/nucleon. Due to the complexity of events, we used the Chimera 4π device as detection system. By selecting central events of reaction, we found that the interplay between binary-like and evaporation residue emissions is strongly sensitive on the N/Z of the entrance channels. In particular, evaporation residue emission increases at increasing the neutron content of colliding system. By comparing or data with CoMD-II model calculations, we can extract information about the density depend part of Symmetry Potential in the Nuclear Equation of State at near-saturation densities.

Physics and Astronomy (all)ChemistryPhysicsQC1-999compound nucleuNeutronNuclear equation of stateNuclear reactionAtomic physicsNucleonNuclear Experimentdecay modes
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ASY-EOS experiment at GSI

2012

The elliptic-flow ratio of neutrons with respect to protons in reactions of neutron rich Heavy-Ion at intermediate energies has been recently proposed as an observable sensitive to the strength of the symmetry term in the nuclear equation of state (EOS) at supra-saturation densities. The recent results obtained from the existing FOPI/LAND data for 197Au+197Au collisions at 400 MeV/nucleon in comparison with the UrQMD model allowed a first estimate of the symmetry term of the EOS but suffer from a considerable statistical uncertainty. In order to obtain an improved data set for Au+Au collisions and to extend the study to other systems, a new experiment was carried out at the GSI laboratory b…

PhysicssezelePhysicsQC1-999Nuclear Theorysymmetry energyObservableNuclear equation of state[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]nuclear equation of stateSymmetry (physics)Term (time)Nuclear physicsPhysics and Astronomy (all)nucleus-nucleus collisionsNeutronNucleonNuclear ExperimentEPJ Web of Conferences
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