Probing nuclear bubble configuration by the ${\pi }^{-}/{\pi }^{+}$ ratio in heavy-ion collisions

Abstract

It is theoretically and experimentally argued that there may exist bubble or toroid-shaped configurations in some nucleus systems. Based on the nuclear transport model, it is shown that compared with the collision of normal nuclei, there is a depletion of central density of compression with bubble configurations in projectile and target nuclei. This depletion of central compression density may affect some observables in heavy-ion collisions.

5 pages, 6 figures, accepted by European Physical Journal A

References in corpus (9)

• Neutron-Rich Nuclei in Heaven and Earth
• Probing Cold Dense Nuclear Matter
• Momentum sharing in imbalanced Fermi systems
• Nuclear symmetry energy and its density slope at normal density extracted from global nucleon optical potentials
• Symmetry Energy of Nucleonic Matter With Tensor Correlations
• Does a proton "bubble" structure exist in the low-lying states of 34Si?
• The isospin quartic term in the kinetic energy of neutron-rich nucleonic matter
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Cited by in corpus (5)

• Bubble nuclei with shape coexistence in even-even isotopes of Hf to Hg
• Probing nuclear bubble configuration by proton induced reaction
• Determination of the density region of the symmetry energy probed by the ${\pi }^{-}/{\pi }^{+}$ ratio
• Initialization effects of nucleon profile on the $\pi$ yields in heavy-ion collisions at medium energies
• Probing the density dependence of the symmetry energy by nucleon flow