NUSYM 2024, XIIth International Symposium on Nuclear Symmetry Energy

Session

Constraints from heavy-ion collisions at intermediate energies

10 sept. 2024, 10:00

GANIL Guest House (Caen)

Présidents de session

Constraints from heavy-ion collisions at intermediate energies

• Francesca GULMINELLI (LPC/Ensicaen)

Constraints from heavy-ion collisions at intermediate energies

• Jerzy Łukasik (IFJ PAN)

Constraints from heavy-ion collisions at intermediate energies

• Olivier LOPEZ (LPC Caen)

29. Signatures of Short-Range Correlations in collisions of intermediate energy projectiles

Kris Hagel (Cyclotron Institute, Texas A & M University)

10/09/2024 10:00

Transport model simulations of heavy-ion reactions

Invited Presentation

Short-range nucleon-nucleon correlations (SRC), fluctuations when nucleons form pairs with high relative momentum and small center of mass momentum for short periods of time, provide important information on large relative momentum and short distance properties of nuclear wave functions. This information is important in theoretical models to understand the density dependence of symmetry...

62. Constraints from FOPI and ASY-EOS flow measurements

Arnaud Le Fèvre (GSI Helmholtzzentrum für Schwerionenforschung GmbH)

10/09/2024 11:00

Invited Presentation

The equation-of-state (EoS) of nuclear matter is of fundamental interest and has been the object of intense theoretical efforts since several decades. The interest is boosted by the fact that it is an important ingredient in modelling astrophysical phenomena such as compact stars and core collapse supernovae. A method to approach the nuclear equation-of-state, practiced since the mid-eighties,...

25. Systematic measurement of charged pion production in HIC with RI beams at RIKEN-RIBF

Tadaaki Isobe (RIKEN)

10/09/2024 11:30

Constraints from heavy-ion collisions at intermediate energies

Oral Presentation

Charged pion production in HIC is one of the possible probes to study the density dependent symmetry energy. In 2016, the experiments for the measurement of charged pion ratio in neutron-rich and in neutron-deficient Sn+Sn system at the beam energy of E/A=270 MeV were conducted at RIKEN-RIBF.
A constraint on the symmetry energy around the nuclear density of \rho ~ 1.5\rho_0 was given based on...

21. Symmetry energy constraints from isospin transport: Recent results from the INDRA-FAZIA apparatus

Caterina Ciampi (GANIL)

10/09/2024 11:50

Constraints from heavy-ion collisions at intermediate energies

Oral Presentation

Heavy-ion collisions at intermediate energies (20-100 MeV/nucleon) are an essential tool for probing the properties of nuclear matter in far-from-equilibrium conditions. Among other topics, they allow the investigation of isospin transport phenomena, which can be interpreted within the framework of the Nuclear Equation of State (NEoS). This area of research holds significant interest due to...

26. Study of nuclear symmetry energy from isospin transport in intermediate energy heavy-ion reactions

Swagata Mallik (Variable Energy Cyclotron Centre, Kolkata, India)

10/09/2024 12:10

Constraints from heavy-ion collisions at intermediate energies

Oral Presentation

One of the most exciting challenges in modern nuclear physics and astrophysics is to understand the behavior of nuclear matter under extreme conditions. Intermediate energy heavy-ion reactions provide a unique opportunity to enrich our knowledge about the nuclear equation of state (EoS) at sub-saturation densities [1,2]. In particular, the isospin transport in heavy-ion reactions at...

30. Heavy-ion collisions and the low-density neutron star equation of state: from the lab to space

Rémi Bougault (LPC Caen)

10/09/2024 14:00

Constraints from heavy-ion collisions at intermediate energies

Oral Presentation

Light nuclear clusters are expected to be ubiquitously present in astrophysical environments and play an important role in different astrophysical phenomena involving ultra-dense baryonic matter, but the estimation of their abundancy demands to correctly estimate the in-medium modification of their binding energy.
In the original measurements, Equilibrium Constants were extracted detecting...

24. Using Molecular Dynamics Codes to Quantify Neutron-Proton Equilibration

Andrea Jedele (TU-Darmstadt)

10/09/2024 14:20

Constraints from heavy-ion collisions at intermediate energies

Oral Presentation

Previous studies at the Cyclotron Institute at Texas A&M University have experimentally shown that neutron-proton equilibration in heavy-ion collisions evolves exponentially [1,2]. The two heaviest fragments originating from the dynamically deformed, excited projectile-like fragment evolve to become more similar as its angle of rotation increases. Results were compared to Constrained Molecular...

55. Pion potentials and its effect on pion production in heavy-ion collisions

Natsumi Ikeno (Tottori University)

Constraints from heavy-ion collisions at intermediate energies

Invited Presentation

To study the pion production in heavy-ion collisions, we developed the transport model [1] which combines the nucleon dynamics obtained by the antisymmetrized molecular dynamics (AMD) model with a newly developed transport code which we call sJAM. In the previous work [1], we treated the collision terms of the $NN\leftrightarrow N\mathrm{\Delta }$ and $\mathrm{\Delta }\leftrightarrow N\pi$ processes with the...