189 citations · 903 across the 36 of their papers we have counts for
34 papers · 1 filter
Variational and parquet-diagram calculations for neutron matter. V. Triplet pairing
E. Krotscheck\', P. Papakonstantinou, J. Wang
We apply a large-scale summation of Feynman diagrams, including the class of parquet-diagrams {\em plus} important contributions outside the parquet class, for calculating effectiv…
Missed prediction of the neutron halo in Mg
K. Y. Zhang, S. Q. Yang, J. L. An +5
Halo phenomena have long been an important frontier in both experimental and theoretical nuclear physics. Mg was identified as a halo nucleus in 2014 and remains the heavies…
Collapse of the shell closure in the newly discovered Na and the development of deformed halos towards the neutron dripline
K. Y. Zhang, P. Papakonstantinou, M. -H. Mun +3
Halos and changes of nuclear magicities have been extensively investigated in exotic nuclei during past decades. The newly discovered Na with the neutron number provi…
Triplet paring in neutron matter
Eckhard Krotscheck, Panagiota Papakonstantinou, Jiawei Wang
The presence of superfluidity in neutron star interiors can affect the cooling of neutron stars in intricate ways, enhancing certain mechanisms and suppressing others. Model calcul…
Origin of octupole deformation softness in atomic nuclei
Minh-Loc Bui, Le-Anh Nguyen, Panagiota Papakonstantinou +1
Recent high-energy heavy ion collision experiments have revealed that some atomic nuclei exhibit unusual softness and significant shape fluctuations. In this work, we use the fully…
Dense Nuclear Matter Equation of State from Heavy-Ion Collisions
Agnieszka Sorensen, Kshitij Agarwal, Kyle W. Brown +133
The nuclear equation of state (EOS) is at the center of numerous theoretical and experimental efforts in nuclear physics. With advances in microscopic theories for nuclear interact…
Bayesian inference of neutron-star observables based on effective nuclear interactions
Jia Zhou, Jun Xu, Panagiota Papakonstantinou
Based on the Skyrme-Hartree-Fock model (SHF) as well as its extension (the Korea-IBS-Daegu-SKKU (KIDS) model) and the relativistic mean-field (RMF) model, we have studied the const…
Comparative analysis of formalisms and performances of three different beyond mean-field approaches
František Knapp, Panagiota Papakonstantinou, Petr Veselý +3
We investigate the differences and analogies between the equation of motion phonon method (EMPM) and second Tamm-Dancoff and random-phase approximations (STDA and SRPA) paying spec…
Nuclear symmetry energy and the PREX-CREX neutron skin puzzle within the KIDS framework
Panagiota Papakonstantinou
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…
Deformed relativistic Hartree-Bogoliubov theory in continuum with a point-coupling functional. II. Examples of odd Nd isotopes
DRHBc Mass Table Collaboration, Cong Pan, Myung-Ki Cheoun +38
The aim of this work is to extend the deformed relativistic Hartree-Bogoliubov theory in continuum (DRHBc) based on the point-coupling density functionals to odd- and odd-odd nu…
Bayesian inference of finite-nuclei observables based on the KIDS model
Jun Xu, Panagiota Papakonstantinou
Bayesian analyses on both isoscalar and isovector nuclear interaction parameters are carried out based on the Korea-IBS-Daegu-SKKU (KIDS) model under the constraints of nuclear str…
Density dependence of the nuclear symmetry energy and neutron skin thickness in the KIDS framework
Panagiota Papakonstantinou
The KIDS framework for the nuclear equation of state (EoS) and energy density functional (EDF) offers the possibility to explore systematically the effect of EoS parameters on pred…
Constraints on the curvature of nuclear symmetry energy from recent astronomical data within the KIDS framework
Hana Gil, Panagiota Papakonstantinou, Chang Ho Hyun
We investigate the density dependence of the nuclear symmetry energy in the KIDS (Korea-IBS-Daegu-SKKU) framework for the nuclear equation of state (EoS) and energy-density…
Constraining the density dependence of the symmetry energy with nuclear data and astronomical observations in the KIDS framework
Hana Gil, Young-Min Kim, Panagiota Papakonstantinou +1
The KIDS framework for the nuclear equation of state (EoS) and energy density functional (EDF) offers the possibility to explore symmetry-energy (SE) parameters such as J (value at…
Daejeon16 interaction with contact-term corrections for heavy nuclear systems
Panagiota Papakonstantinou, James P. Vary, Youngman Kim
The Daejeon16 two-nucleon interaction is employed in many-body approaches based on the mean-field approximation. The perturbative character of Daejeon16 is verified by comparing re…
Neutron drip line in the deformed relativistic Hartree-Bogoliubov theory in continuum: Oxygen to Calcium
Eun Jin In, Youngman Kim, Panagiota Papakonstantinou +1
The location of the neutron drip line, currently known for only the lightest elements, remains a fundamental question in nuclear physics. Its description is a challenge for microsc…
Deformed relativistic Hartree-Bogoliubov theory in continuum with point coupling functional: examples of even-even Nd isotopes
Kaiyuan Zhang, Myung-Ki Cheoun, Yong-Beom Choi +35
The aim of this work is to develop the deformed relativistic Hartree-Bogoliubov theory in continuum (DRHBc) theory based on the point-coupling density functionals and extend it to…
Analysis of nuclear structure in a converging expansion scheme
Hana Gil, Young-Min Kim, Chang Ho Hyun +2
In the framework of the KIDS generalized energy density functional (EDF), the nuclear equation of state (EoS) is expressed as an expansion in powers of the Fermi momentum or the cu…
Nuclear structure and the nucleon effective mass: explorations with the versatile KIDS functional
Panagiota Papakonstantinou, Hana Gil
The connection from the structure and dynamics of atomic nuclei (finite nuclear system) to the nuclear equation of state (thermodynamic limit) is primarily made through nuclear ene…
From homogeneous matter to finite nuclei: Role of the effective mass
Hana Gil, Panagiota Papakonstantinou, Chang Ho Hyun +1
Recent astronomical observations, nuclear-reaction experiments, and microscopic calculations have placed new constraints on the nuclear equation of state (EoS) and revealed that mo…
Structures in the nuclear electric-dipole spectrum
P. Papakonstantinou
I undertake an anatomy of the nuclear electric-dipole spectrum and discuss selected observations. First, using data and calculations on 208Pb as a representative case, I identify f…
Nuclear Energy Density Functional for KIDS
Hana Gil, Panagiota Papakonstantinou, Chang Ho Hyun +2
The density functional theory (DFT) is based on the existence and uniqueness of a universal functional , which determines the dependence of the total energy on single-particl…
Density dependence of the nuclear energy-density functional
Panagiota Papakonstantinou, Tae-Sun Park, Yeunhwan Lim +1
The explicit density (rho) dependence in the coupling coefficients of the non-relativistic nuclear energy-density functional (EDF) encodes effects of three-nucleon forces and dynam…
Isoscalar and neutron modes in the E1 spectra of Ni isotopes and the relevance of shell effects and the continuum
P. Papakonstantinou, H. Hergert, R. Roth
We study theoretically the electric dipole transitions of even Ni isotopes at low energies, using the self-consistent quasi-particle random-phase approximation (RPA) with the D1S G…