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Microscopic calculations of neutron matter based on nuclear interactions derived from chiral effective field theory, combined with the recent observation of a 1.97 +- 0.04 M_sun neutron star, constrain the equation of state of neutron-rich…

Solar and Stellar Astrophysics · Physics 2013-07-23 K. Hebeler , J. M. Lattimer , C. J. Pethick , A. Schwenk

Neutron stars are one of the most extreme objects in the universe, with densities that can exceed those of atomic nuclei and gravitational fields that are among the strongest known. Theoretical and observational research on neutron stars…

High Energy Astrophysical Phenomena · Physics 2023-03-16 J. Alfredo Collazos

The density dependencies of various effective interaction strengths in the relativistic mean field are studied and carefully compared for nuclear matter and neutron stars. The influences of different density dependencies are presented and…

Nuclear Theory · Physics 2009-11-10 S. F. Ban , J. Li , S. Q. Zhang , H. Y. Jia , J. P. Sang , J. Meng

We study the implications of the recent development in nuclear symmetry energy constraints from PREX-2 data on dense matter equation of state and its impact on dURCA threshold density. In this work, we construct the equation of state within…

Nuclear Theory · Physics 2022-03-07 Vivek Baruah Thapa , Monika Sinha

The equation of state of dense matter determines the structure of neutron stars, their typical radii, and maximum masses. Recent improvements in theoretical modeling of nuclear forces from the low-energy effective field theory of QCD has…

Nuclear Theory · Physics 2019-09-04 Jeremy W. Holt , Yeunhwan Lim

Background: The density dependence of nuclear symmetry energy is crucial in determining several properties of finite nuclei to the neutron stars with mass $\sim$ 1.4 $M_\odot$. The values of neutron skin thickness, isovector giant dipole…

Nuclear Theory · Physics 2023-03-23 T. Ghosh , Sangeeta , G. Saxena , B. K. Agrawal , Ushasi Datta

We show that electrons can couple to the neutron excitations in neutron stars and find that this can limit their contribution to the transport properties of dense matter, especially the shear viscosity. The coupling between electrons and…

Nuclear Theory · Physics 2015-03-05 Bridget Bertoni , Sanjay Reddy , Ermal Rrapaj

Recently, the radius of neutron star (NS) PSR J0740+6620 was measured by Neutron Star Interior Composition Explorer (NICER) and an updated measurement of neutron skin thickness of ${}^{208}$Pb ($R_{\rm skin}^{208}$) was reported by the…

Nuclear Theory · Physics 2021-09-22 Shao-Peng Tang , Jin-Liang Jiang , Ming-Zhe Han , Yi-Zhong Fan , Da-Ming Wei

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…

Atomic Parity Violation (APV) is usually quantified in terms of the weak nuclear charge $Q_W$ of a nucleus, which depends on the coupling strength between the atomic electrons and quarks. In this work, we review the importance of APV to…

High Energy Physics - Phenomenology · Physics 2019-06-13 Giorgio Arcadi , Manfred Lindner , Jessica Martins , Farinaldo S. Queiroz

I briefly review the KIDS theoretical framework for the nuclear equation of state (EoS) and energy density functional (EDF), I discuss recent results for the curvature parameter of the symmetry energy, and I address the PREX-CREX puzzle. I…

Nuclear Theory · Physics 2022-10-07 Panagiota Papakonstantinou

We calculate the differential scattering rate for thermal neutrinos in a hot and dilute gas of interacting neutrons using linear response theory. The dynamical structure factors for density and spin fluctuations of the strongly interacting…

Nuclear Theory · Physics 2018-08-08 Paulo F. Bedaque , Sanjay Reddy , Srimoyee Sen , Neill C. Warrington

Coherent elastic neutrino-nucleus scattering (CE$\nu$NS) represents a powerful tool to investigate key electroweak physics parameters and neutrino properties since its first observation in 2017 by the COHERENT experiment exploiting the…

High Energy Physics - Phenomenology · Physics 2023-03-15 M. Atzori Corona , M. Cadeddu , N. Cargioli , F. Dordei , C. Giunti , Y. F. Li , C. A. Ternes , Y. Y. Zhang

According to the Hugenholtz-Van Hove theorem, the nuclear symmetry energy $S(\rho)$ and its slope $L(\rho)$ at arbitrary densities can be decomposed in terms of the density and momentum dependence of the single-nucleon potentials in…

Nuclear Theory · Physics 2014-09-01 F. J. Fattoyev , W. G. Newton , Bao-An Li

We study the properties of neutron stars adopting relativistic equations of state of neutron star matter, calculated in the framework of the relativistic Brueckner-Hartree-Fock approximation for electrically charge neutral neutron star…

Nuclear Theory · Physics 2009-10-30 H. Huber , F. Weber , M. K. Weigel , Ch. Schaab

The tidal measurement of gravitational waves from the binary neutron star merger event GW170817 allows us to probe nuclear physics that suffers less from astrophysical systematics compared to neutron star radius measurements with…

General Relativity and Quantum Cosmology · Physics 2021-01-19 Zack Carson , Andrew W. Steiner , Kent Yagi

Few unified equations of state for neutron star matter where core and crust are described using the same nuclear model are available. However the use of non-unified equations of state with a simplified matching between the crust and the…

High Energy Astrophysical Phenomena · Physics 2016-11-07 J. L. Zdunik , M. Fortin , P. Haensel

The correlations of the crust-core transition density and pressure in neutron stars with the slope of the symmetry energy and the neutron skin thickness are investigated, using different families of relativistic mean field parametrizations…

Nuclear Theory · Physics 2016-04-11 H. Pais , A. Sulaksono , B. K. Agrawal , C. Providência

We adopt two- and three-body nuclear forces derived at the next-to-next-to-leading-order (N2LO) in the framework of effective chiral perturbation theory (ChPT) to calculate the equation of state (EOS) of $\beta$-stable neutron star matter…

High Energy Astrophysical Phenomena · Physics 2018-06-27 Domenico Logoteta , Ignazio Bombaci

The recently developed ``imaging-by-smashing" technique has emerged as a powerful approach to connect final-state collective flow phenomena in ultra-relativistic nuclear collisions with the intrinsic structure of the colliding nuclei. While…

Nuclear Theory · Physics 2025-12-02 Andreas Vitsos , Leonora Misciattelli Mocenigo Soranzo , You Zhou