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相关论文: Odd-even mass differences in self-consistent Mean-…

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Measurements of neutron star mass and radius or tidal deformability deliver unique insight into the equation of state (EOS) of cold dense matter. EOS inference is very often done using generalized parametric or non-parametric models which…

高能天体物理现象 · 物理学 2024-03-25 Chun Huang , Geert Raaijmakers , Anna L. Watts , Laura Tolos , Constança Providência

We calculate the binding energy and deformation parameter for light nuclei with and without pairing using a deformed relativistic mean field model. The role of BCS-type pairing effect is analyzed for Ne and F isotopes. The calculated…

核理论 · 物理学 2007-05-23 P. Arumugam , T. K. Jha , S. K. Patra

The Equation of State (EoS) of dense matter represents a central issue in the study of compact astrophysical objects and heavy ion reactions at intermediate and relativistic energies. We have derived a nuclear EoS with nucleons and hyperons…

核理论 · 物理学 2008-11-26 Fiorella Burgio

We obtain posterior distribution of equations of state (EOSs) across a broad range of density by imposing explicitly the constraints from precisely measured fundamental properties of finite nuclei, in combination with the experimental data…

核理论 · 物理学 2024-06-03 Anagh Venneti , Sakshi Gautam , Sarmistha Banik , B. K. Agrawal

There is a degeneracy between the equation of state (EOS) of superdense neutron-rich nuclear matter and the strong-field gravity in understanding properties of neutron stars. While the EOS is still poorly known, there are also longstanding…

核理论 · 物理学 2015-01-30 Xiao-Tao He , F. J. Fattoyev , Bao-An Li , W. G. Newton

A novel superconducting state under the broken time-reversal symmetry is studied in conventional phonon-mediated superconductors. By solving the Eliashberg equation self-consistently with the mass renormalization effect, it is found that…

超导电性 · 物理学 2012-03-14 Masashige Matsumoto , Mikito Koga , Hiroaki Kusunose

Conflicting coupling of unpaired nucleons in the odd-odd nuclei is discussed. A very simple explanation is suggested for the damping of the energy spacing of the lowest levels in the rotational bands in the odd-odd nuclei in the case of a…

核理论 · 物理学 2011-03-15 A. I. Levon , A. A. Pasternak

A recently introduced analytical model for the nuclear density profile[1] is implemented in the Extended Thomas-Fermi (ETF) energy density functional. This allows to (i) shed a new light on the issue of the sign of surface symmetry energy…

核理论 · 物理学 2014-07-10 Francois Aymard , Francesca Gulminelli , Jérôme Margueron

The strange quark mass is determined from a study of the correlator of the divergence of the strange vector current using a family of finite energy sum rules recently shown to be very accurately satisfied in the isovector vector channel. It…

高能物理 - 唯象学 · 物理学 2008-11-26 K. Maltman

We introduce a new Bose-Fermi framework for studying spectral properties and quantum phase transitions (QPTs) in odd-mass nuclei, in the presence of configuration mixing. A detailed analysis of odd-mass Nb isotopes discloses the effects of…

核理论 · 物理学 2022-12-07 Noam Gavrielov , Amiram Leviatan , Francesco Iachello

We investigate the non-uniform structures and the equation of state (EOS) of nuclear matter in the context of the first-order phase transitions (FOPT) such as liquid-gas phase transition, kaon condensation, and hadron-quark phase…

核理论 · 物理学 2008-12-25 Toshiki Maruyama , Satoshi Chiba , Toshitaka Tatsumi

As a follow up of [Phys. Scr. 99 055305 (2024)], where we studied axial octupole shapes in two-quasiparticle states of even-even nuclei, we investigate this type of shapes in odd-mass and odd-odd well-deformed nuclei, using the…

核理论 · 物理学 2025-12-23 N. Kontowicz , L. Bonneau , J. Bartel , H. Molique , N. Minkov , M. -H. Koh

Bound, strange, neutral superheavy nuclei, stable against strong decay, may exist. A model effective field theory calculation of the surface energy and density of such systems is carried out assuming vector meson couplings to conserved…

核理论 · 物理学 2009-11-07 Jeff McIntire

Much effort is devoted to measuring the nuclear symmetry energy through neutron star (NS) and nuclear observables. Since matter in the NS core may be non-hadronic, observables like radii and tidal deformability may not provide reliable…

高能天体物理现象 · 物理学 2023-03-29 Duncan Neill , Rebecca Preston , William G. Newton , David Tsang

Spectroscopic properties of odd-mass nuclei are studied within the framework of the interacting boson-fermion model (IBFM) with parameters based on the Hartree-Fock-Bogoliubov (HFB) approximation. The parametrization D1M of the Gogny energy…

核理论 · 物理学 2017-07-25 K. Nomura , R. Rodríguez-Guzmán , L. M. Robledo

We discuss the relation between the effective vector meson mass and equation of state (EOS) for nuclear matter. In the mean field approximation, the EOS becomes softer due to the reduction of the effective omega-meson mass, if we assume…

核理论 · 物理学 2007-05-23 Hiroaki Kouno

The present study focuses on investigating the shape evolution of neutron-rich even-even Osmium (Os) transitional nuclei within the range of neutron number N = 82 to N = 190. The investigation is conducted using density-dependent…

核理论 · 物理学 2024-05-16 Usuf Rahaman , M. Ikram , Ishfaq A. Rather , Anisul Ain Usmani

Hartle's model for slowly rotating stars has been extensively used to compute equilibrium configurations of slowly rotating stars to second order in perturbation theory in General Relativity, given a barotropic equation of state (EOS). A…

广义相对论与量子宇宙学 · 物理学 2015-12-16 Borja Reina

We formulate criteria for identification of the nuclear tetrahedral and octahedral symmetries and illustrate for the first time their possible realization in a Rare Earth nucleus 152Sm. We use realistic nuclear mean-field theory…

核理论 · 物理学 2018-03-14 J. Dudek , D. Curien , I. Dedes , K. Mazurek , S. Tagami , Y. R. Shimizu , T. Bhattacharjee

Description of a nuclear system in its ground state and at low excitations based on the equation of state (EoS) around normal density is presented. In the expansion of the EoS around the saturation point additional spin polarization terms…