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Relativistic self-energy decomposition of nuclear symmetry energy and equation of state of neutron matter within QCD sum rules
- Publication Year :
- 2019
- Publisher :
- arXiv, 2019.
-
Abstract
- (abridged edition): Properties of the relativistic nucleon self-energy decomposition of the symmetry energy as well as the equation of state (EOS) of pure neutron matter (PNM) are explored systematically within the QCD sum rules (QCDSR). Our results in the present work have demonstrated that the QCDSR approach can be used to explore the properties of asymmetric nuclear matter (ANM) in a quantitative manner, at least in lower density region. The QCDSR approach establishes a bridge connecting the EOS of ANM and the non-perturbative QCD vacuum, and thus provides a useful way to understand the properties of dense nucleonic matter from non-perturbative QCD vacuum. These studies are helpful to investigate the QCD origins about the uncertainties of nucleonic matter properties, e.g., the uncertainties of the symmetry energy. On the other hand, the exact knowledge on the EOS of ANM extracted from experiments, observations and model-independent calculations is also very useful for understanding the quark/gluon condensates in nuclear medium, which can provide important information on the chiral symmetry restoration phase transition in nuclear matter as well as the in-medium effects of hadron properties.<br />Comment: 44 pages, 46 figures. The RMF model results added for comparison and presentation improved. Accepted version to appear in PRC
- Subjects :
- Quantum chromodynamics
Quark
Physics
Particle physics
QCD sum rules
Equation of state
Nuclear Theory
010308 nuclear & particles physics
QCD vacuum
FOS: Physical sciences
Nuclear matter
01 natural sciences
Nuclear Theory (nucl-th)
High Energy Physics - Phenomenology
High Energy Physics - Phenomenology (hep-ph)
Self-energy
0103 physical sciences
Nuclear Experiment (nucl-ex)
010306 general physics
Nucleon
Nuclear Experiment
Subjects
Details
- Database :
- OpenAIRE
- Accession number :
- edsair.doi.dedup.....a20cc19b18623c2d5371eb4c4fdc5747
- Full Text :
- https://doi.org/10.48550/arxiv.1903.10430