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Related papers: Tensor Correlations and Pions in Dense Nuclear Mat…

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We calculate the nucleonic and pionic dispersion relations at finite temperature T and non-vanishing chemical potentials $(\mu_f)$ in the context of an effective chiral theory that describes the strong and electromagnetic interactions for…

High Energy Physics - Phenomenology · Physics 2007-05-23 Rafael Hurtado , John Morales , Carlos Quimbay

The past years have witnessed tremendous progress in understanding the properties of neutron stars and of the dense matter in their cores, made possible by electromagnetic observations of neutron stars and the detection of gravitational…

The high-density behavior of nuclear symmetry energy is among the most uncertain properties of dense neutron-rich matter. Its accurate determination has significant ramifications in understanding not only the reaction dynamics of heavy-ion…

Nuclear Theory · Physics 2014-02-27 Zhi-Gang Xiao , Gao-Chan Yong , Lie-Wen Chen , Bao-An Li , Ming Zhang , Guo-Qing Xiao , Nu Xu

The properties of inhomogeneous neutron matter are crucial to the physics of neutron-rich nuclei and the crust of neutron stars. Advances in computational techniques now allow us to accurately determine the binding energies and densities of…

Nuclear Theory · Physics 2011-02-01 S. Gandolfi , J. Carlson , Steven C. Pieper

To explain the production of light nuclei in heavy-ion collisions at extreme energies, we focus on the deuteron case. A Gibbs ensemble at chemical freeze-out is a prerequisite to investigate the non-equilibrium evolution of the expanding…

Nuclear Theory · Physics 2024-02-26 Benjamin Dönigus , Gerd Röpke , David Blaschke

We apply the variational theory for fermions at finite temperature and high density, developed in an earlier paper, to symmetric nuclear matter and pure neutron matter. This extension generalizes to finite temperatures, the many body…

Nuclear Theory · Physics 2009-12-31 Abhishek Mukherjee

Using results from the chiral perturbation theory for the s-wave interaction and the delta-resonance model for the p-wave interaction of pions with nucleons, we have evaluated the spectral functions of pions in asymmetric nuclear matter…

Nuclear Theory · Physics 2014-11-20 Jun Xu , Che Ming Ko , Yongseok Oh

Neutron stars are the most dense objects in the observable Universe and conventionally one uses nuclear theory to obtain the equation of state (EOS) of dense hadronic matter and the global properties of these stars. In this work, we review…

Nuclear Theory · Physics 2009-02-03 T. K. Jha

Neutron stars are some of the densest manifestations of massive objects in the universe. They are ideal astrophysical laboratories for testing theories of dense matter physics and provide connections among nuclear physics, particle physics…

Astrophysics · Physics 2011-05-05 J. M. Lattimer , M. Prakash

An exploratory study of chiral four-nucleon interactions in nuclear and neutron matter is performed. The leading-order terms arising from pion-exchange in combination with the chiral $4\pi$-vertex and the chiral NN$3\pi$-vertex are found to…

Nuclear Theory · Physics 2015-06-11 N. Kaiser

The properties of nuclear matter and the structures of neutron stars are analyzed with a baryonic extended linear sigma model in mean-field approximation, where the masses of baryons and mesons are generated via the spontaneous chiral…

Nuclear Theory · Physics 2026-04-20 Yao Ma

Does deconfined cold quark matter occur in nature? This is currently one of the fundamental open questions in nuclear astrophysics. In these proceedings, I review the current state-of-the-art techniques to address this question in a…

Nuclear Theory · Physics 2023-12-18 Tyler Gorda

The prediction of the equation of state of hot, dense nuclear matter is one of the most complicated and interesting problems in nuclear astrophysics. At the same time, knowledge of it is the basic ingredient for some of the most interesting…

High Energy Astrophysical Phenomena · Physics 2021-05-12 P. S. Koliogiannis , Ch. C. Moustakidis

We have recently studied in the delta-resonance--nucleon-hole model the dependence of the pion spectral function in hot dense asymmetric nuclear matter on the charge of the pion due to the pion p-wave interaction in nuclear medium. In a…

Nuclear Theory · Physics 2014-11-20 Che Ming Ko , Yongseok Oh , Jun Xu

Nuclear collisions can compress nuclear matter to densities achieved within neutron stars and within core-collapse supernovae. These dense states of matter exist momentarily before expanding. We analyzed the flow of matter to extract…

Nuclear Theory · Physics 2009-11-07 P. Danielewicz , R. Lacey , W. G. Lynch

Recent equations of state for dense nuclear matter are discussed with possible phase transitions arising in neutron stars such as pion, kaon and hyperon kondensation, superfluidity and quark matter. Specifically, we treat the nuclear to…

Nuclear Theory · Physics 2009-10-31 H. Heiselberg , M. Hjorth-Jensen

A survey of pairing properties of nucleonic matter is presented that includes the off-shell propagation associated with short-range and tensor correlations. For this purpose, the gap equation has been solved in its most general form…

Nuclear Theory · Physics 2016-08-16 H. Müther , W. H. Dickhoff

We demonstrate that nuclear magnetic resonance based searches for dark matter (DM) have intrinsic and powerful sensitivity to dark photons and the axion-photon coupling. The reason is conceptually straightforward. An instrument such as…

High Energy Physics - Phenomenology · Physics 2025-05-23 Carl Beadle , Sebastian A. R. Ellis , Jacob M. Leedom , Nicholas L. Rodd

We search for possible correlations between neutron star observables and thermodynamic quantities that characterize high density nuclear matter. We generate a set of model-independent equations of state describing stellar matter from a…

Nuclear Theory · Physics 2020-03-04 Márcio Ferreira , M. Fortin , Tuhin Malik , B. K. Agrawal , Constança Providência