Probing proton transition momentum in neutron-rich matter

Abstract

Around the nuclear Fermi momentum, there is a transition of nucleon momentum distribution n(k) in nuclear matter, i.e., from a constant to the $1/k^4$ nucleon momentum distribution. While nowadays the transition momentum of minority in asymmetric matter is rarely studied and thus undetermined. In the framework of the IBUU transport model, proton transition momentum in nuclei is first studied. It is found that the transition momentum of proton is sensitive to the ${\pi }^{-}/{\pi }^{+}$ ratio as well as the energetic photon production in neutron-rich nuclear reaction. This result may push the study of how the proton momentum is distributed in neutron-rich matter forward and help us to better understand the dynamics of both neutron-rich nuclear reactions and neutron stars.

5 pages, 5 figures

References in corpus (8)

• Probing Cold Dense Nuclear Matter
• Momentum sharing in imbalanced Fermi systems
• Evidence for the Strong Dominance of Proton-Neutron Correlations in Nuclei
• Tensor Forces and the Ground-State Structure of Nuclei
• Symmetry Energy of Nucleonic Matter With Tensor Correlations
• Three-body force effect on nucleon momentum distributions in asymmetric nuclear matter within the framework of the extended BHF approach
• The isospin quartic term in the kinetic energy of neutron-rich nucleonic matter
• Three-body force effect on off-shell mass operator and spectral functions in nuclear matter

Cited by in corpus (8)

• Imprints of high-momentum nucleons in nuclei on hard photons from heavy-ion collisions around the Fermi Energy
• Investigating Effects of Relativistic Kinematics, Dimensionality, Interactions, and Short-Range Correlations on the Ratio of Quartic over Quadratic Nuclear Symmetry Energies
• Equation of State of Neutron-Rich Matter in $d$-Dimensions
• A local-density-approximation description of high-momentum tails in isospin asymmetric nuclei
• Nucleon momentum gap in asymmetric nuclear matter
• Nucleon Short-Range Correlations and High-Momentum Dynamics: Implications on the Equation of State of Dense Matter
• Effects of high-momentum tail of nucleon momentum distribution on initiation of cluster production in heavy-ion collisions at intermediate energies
• Neutron Star Equation of State with Nucleon Short-Range Correlations: A Concise Review and Open Issues