Dynamical dipole $\gamma$ radiation in heavy-ion collisions on the basis of the quantum molecular dynamics model

Abstract

Dynamical dipole $\gamma$-ray emission in heavy-ion collisions is explored in the framework of the quantum molecular dynamics model. The studies are focused on systems of ${}^{40}$Ca bombarding ${}^{48}$Ca and its isotopes at different incident energies and impact parameters. Yields of $\gamma$ rays are calculated and the centroid energy and dynamical dipole emission width of the $\gamma$ spectra are extracted to investigate the properties of $\gamma$ emission. In addition, sensitivities of dynamical dipole $\gamma$-ray emission to the isospin and the symmetry energy coefficient of the equation of state are studied. The results show that detailed study of dynamical dipole $\gamma$ radiation can provide information on the equation of state and the symmetry energy around the normal nuclear density.

arXiv comment5 pages, 6 figures

References in corpus (8)

• Recent Progress and New Challenges in Isospin Physics with Heavy-Ion Reactions
• Reaction Dynamics with Exotic Beams
• Quantum Calculation of Dipole Excitation in Fusion Reaction
• Surveying the Nucleon-Nucleon Momentum Correlation Function in the Framework of Quantum Molecular Dynamics Model
• The Dynamical Dipole Mode in Dissipative Heavy Ion Collisions
• The Dynamical Dipole Mode in Fusion Reactions with Exotic Nuclear Beams
• Isoscaling behavior in the Isospin dependent Quantum Molecular Dynamics model
• The Dynamical Dipole Radiation in Dissipative Collisions with Exotic Beams

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• Photonuclear reaction as a probe for $\alpha$-clustering nuclei in the quasi-deuteron region
• Pygmy and Giant Dipole Resonances by Coulomb Excitation using a Quantum Molecular Dynamics model
• Dipole excitation of ${}^6$Li and ${}^9$Be studied with an extended quantum molecular dynamics model
• Advantages of the multinucleon transfer reactions based on 238U target for producing neutron-rich isotopes around N = 126
• Hard photon flow and photon-photon correlation in intermediate energy heavy-ion collisions
• Investigation of giant dipole resonance in heavy deformed nuclei with the EQMD model
• Iso-vector dipole resonance and shear viscosity in low energy heavy-ion collision
• Pre-equilibrium effects in charge-asymmetric low-energy reactions
• Isoscalar giant monopole resonance in Sn isotopes using a quantum molecular dynamics model
• Giant dipole resonance in proton capture reactions using an extended quantum molecular dynamics model
• Symmetry-energy dependence of the dynamical dipole mode in the Boltzmann-Uehling-Uhlenbeck model
• Remarks on the non-equilibrium effects and collision dynamics in heavy-ion collisions