We calculate the nucleonic equation of state within Brueckner-Bethe-Goldstone formalism using Argonne ${\ensuremath{\upsilon}}_{18}$ two-body interaction and a three-body interaction. adopt two different forces: phenomenological Urbana IX model microscopic meson-exchange force including nucleon virtual excitations nucleon-antinucleon excitations. compare their respective predictions regarding structure neutron stars, in particular mass-radius relation.

The properties of \ensuremath{\Lambda} hypernuclei in a broad mass region are studied by using deformed Hartree-Fock approach realistic nucleonic Skyrme forces, pairing correlations, and microscopically determined lambda-nucleon interaction based on Brueckner-Hartree-Fock calculations hypernuclear matter. results suggest that the core nuclei corresponding have similar deformations with same sign. Some light single-\ensuremath{\Lambda} substantially binding energy is modified deformation.

Static and dynamic quadrupole moments of C Ne isotopes are investigated by using the deformed Skyrme Hartree-Fock model also shell wave functions with isospin-dependent core polarization charges. We point out that deformations have a strong isotope dependence as manifestation spontaneous symmetry breaking effect in nuclear physics. The is general phenomenon known many fields It shown at same time $Q$ magnetic $\ensuremath{\mu}$ odd depend clearly on assigned configurations, their...

We study the influence of $\ensuremath{\Lambda}$ hyperons on neutron drip properties in hypernuclear matter and hypernuclei, using a microscopic $\ensuremath{\Lambda}N$ force. find an extension line bulk stabilization neutron-rich isotopes due to added hyperons.

A Super Tau Charm Facility (STCF) is one of the major options for accelerator-based high energy project in China post-BEPCII era, and its R\&D program underway. The proposed STCF will span center mass energies ($\sqrt{s}$) ranging from 2 to 7 GeV with a peaking luminosity above $0.5\times 10^{35}$ cm$^{-2}$s$^{-1}$ at $\sqrt{s}=4.0$ GeV, provide unique platform tau-charm physics hadron physics. In order evaluate physical potential capabilities optimize detector design, fast simulation...

A beyond-mean-field approach consisting of angular momentum projection techniques and generator coordinate method based on Skyrme--Hartree-Fock calculations is employed to investigate single- double-$\mathrm{\ensuremath{\Lambda}}$ hypernuclear systems. The density-dependent $N\mathrm{\ensuremath{\Lambda}}$ interactions derived from the Nijmegen soft-core potentials are used. Rotational energy spectra electric-quadrupole transition strengths $B(E2)$ hypernuclei...

We study the properties of hot neutrino-trapped beta-stable stellar matter using an equation state nuclear within Brueckner-Hartree-Fock approach including three-body forces, combined with a standard chiral model for kaon condensation at finite temperature. The (proto)neutron stars are then investigated this framework.

Based on the beyond-mean-field Skyrme-Hartree-Fock model, we investigate energy spectra and possible cluster structure in $^{12}\mathrm{C}$ its $\mathrm{\ensuremath{\Lambda}}$ hypernucleus $_{\phantom{\rule{0.16em}{0ex}}\phantom{\rule{0.16em}{0ex}}\mathrm{\ensuremath{\Lambda}}}^{13}\mathrm{C}$. The up-to-date Skyrme-type $N\mathrm{\ensuremath{\Lambda}}$ interaction SLL4 reduced $NN$ SGII are employed. Low-lying of $^{12}\mathrm{C}$, including lowest five ${0}^{+}$ states, predicted discussed...

We study tensor and pairing effects on the quadruple deformation of neon isotopes based a deformed Skyrme-Hartree-Fock model with BCS approximation for channel. extend formalism description single- double-$\ensuremath{\Lambda}$ hypernuclei adopting two different hyperon-nucleon interactions. It is found that interplay interactions crucial to derive deformations in several isotopes. Especially, shapes ${}^{26,30}$Ne are studied details comparisons experimentally observed shapes. Furthermore...

Nucleonic $^{1}S_{0}$ and $^{3}PF_{2}$ pairing gaps in neutron stars are determined their sensitivity to medium effects realized through nucleonic three-body forces, the presence of hyperons is explored.

Charge exchange spin-dipole (SD) excitations in $^{90}\mathrm{Zr}$ and $^{208}\mathrm{Pb}$ are studied by using a Skyrme Hartree-Fock + random phase approximation. The calculated strength distributions compared with experimental data obtained $^{90}\mathrm{Zr}$(p,n)$^{90}\mathrm{Nb}$ $^{90}\mathrm{Zr}$(n,p)$^{90}\mathrm{Nb}$ reactions. model-independent SD sum rule values of various interactions comparison the to determine neutron skin thickness $^{90}\mathrm{Zr}$. pressure matter equation...

The $\mathrm{\ensuremath{\Lambda}}\mathrm{\ensuremath{\Lambda}}$ pairing effects in spherical and deformed multi-$\mathrm{\ensuremath{\Lambda}}$ hyperisotopes are investigated the framework of Skyrme-Hartree-Fock approach employing a $\ensuremath{\delta}$ force with strength $\mathrm{\ensuremath{\Lambda}}$ hyperons being $4/9$ that for nucleons. For hyperisotopes, occurrences magic numbers $\ensuremath{-}S=2$, 8, 18, 20, 34, 58, 68, 70, which attributed to Woods-Saxon-like hyperon potential,...

Based on the beyond-mean-field Skyrme-Hartree-Fock model, up-to-date Skyrme-type $N\mathrm{\ensuremath{\Lambda}}$ interaction, SLL4, is used to investigate properties of $_{\mathrm{\ensuremath{\Lambda}}}^{9}\mathrm{Be}$ comprehensively. Energies different configurations, such as $^{8}\mathrm{Be}\ensuremath{\bigotimes}\mathrm{\ensuremath{\Lambda}}[000]1/{2}^{+}, ^{8}\mathrm{Be}\ensuremath{\bigotimes}\mathrm{\ensuremath{\Lambda}}[110]1/{2}^{\ensuremath{-}},...

Recent experimental results for the cascade hypernucleus $_{\phantom{\rule{2.0pt}{0ex}}\mathrm{\ensuremath{\Xi}}}^{15}\mathrm{C}$ ($^{14}\mathrm{N}+{\mathrm{\ensuremath{\Xi}}}^{\ensuremath{-}}$) are analyzed together with data $_{\phantom{\rule{2.0pt}{0ex}}\mathrm{\ensuremath{\Xi}}}^{12}\mathrm{Be}$ and $_{\phantom{\rule{2.0pt}{0ex}}\mathrm{\ensuremath{\Xi}}}^{13}\mathrm{B}$ within a Skyrme-Hartree-Fock theoretical approach. Optimal Skyrme parameters determined consistent description of...

The deformations of multi-$\la$ hypernuclei corresponding to even-even core nuclei ranging from $^8$Be $^{40}$Ca with 2, 4, 6, and 8 hyperons are studied in the framework deformed Skyrme-Hartree-Fock approach. It is found that reduced when adding 2 or $\la$ hyperons, but enhanced 4 6 hyperons. These differences attributed fact filled gradually into three $p$ orbits, which [110]1/2$^-$ orbit prolately degenerate [101]1/2$^-$ [101]3/2$^-$ orbits oblately deformed.

The realizations of spin symmetry in the $\mathrm{\ensuremath{\Lambda}}$ hyperon spectra hypernuclei ranging from light to heavy masses are investigated framework deformed Skyrme-Hartree-Fock approach. effect deformation on and its interplay with required spin-orbit force is studied detail. It found that prevails due a small force. Moreover, for doublets same principal quantum number $n$, reduced splitting $\mathrm{\ensuremath{\Delta}}{E}_{\text{s.o.}}$ shows good linear relation respect...

The effect of tensor interaction is studied on deformation and shell structure various nuclei within the deformed Skyrme Hartree–Fock+BCS model. We discuss first deformations Kr isotopes 80Zr. Second, same model applied to investigate role correlations evolution in superheavy nuclei. To this end, we adopt four different interactions: SLy5 without interaction, SLy5+T, T24 T44 with interaction. It shown that SLy5+T gives shape changes lowest configurations similar experimental observations....

Charmed ${\mathrm{\ensuremath{\Lambda}}}_{c}^{+}$ hypernuclei are investigated in the framework of deformed Skyrme-Hartree-Fock approach. Their ground-state bulk properties, single-particle energy levels, potential curves, as well existence limit charmed studied with particular regard to effects deformation. ${\mathrm{\ensuremath{\Lambda}}}_{c}^{+}\phantom{\rule{4pt}{0ex}}1p$ states found be strongly bound, nuclei.

The influence of hyperons on localized clusters is studied in deformed nuclei $^{20}\mathrm{Ne}$ and $^{28}\mathrm{Si}$ the spherical nucleus $^{40}\mathrm{Ca}$ by employing Skyrme-Hartree-Fock approach localization function. It found that $p$ state initially tend to occupy orbitals with shapes similar core nucleus. exhibits a robust prolate configuration characterized an $\ensuremath{\alpha}{\ensuremath{-}}^{12}\mathrm{C}\ensuremath{-}\ensuremath{\alpha}$ cluster, while displays less...

Evolution of quadrupole deformations in sd- and pf-shell nuclei with mass $A=18~56$ is studied by using deformed Skyrme Hartree-Fock model pairing correlations. We point out that the isospin $T=0$ $T=1$ show strong number dependence as a clear manifestation dynamical evolution deformation nuclear many-body systems. The competition between driving particle-vibration coupling closed-shell structure shown systematic study ratios proton neutron $T=|{T}_{z}|=1$. Calculated hexadecapole are...

In this paper we demonstrate that a simple nucleon-pair picture, previously investigated for semi-magic even-even nuclei, survives in both odd-mass nuclei and few neutron-rich open-shell nuclei. This is exemplified by low-lying states of the $^{43\ensuremath{-}48}\mathrm{Ca}$ three $^{132}\mathrm{Cd}$, $^{131}\mathrm{Ag}$, $^{130}\mathrm{Pd}$, calculated with effective interactions. Not only generalized-seniority-zero, -one -two states, but also larger seniority numbers are shown to be well...

The effects of deformation and the change nuclear core on hyperon binding halo structure in single-$\mathrm{\ensuremath{\Lambda}}$ $p$-shell hypernuclei are studied for C hyperisotopes $N=6$ hyperisotones framework deformed Skyrme-Hartree-Fock approach with combinations $NN$ interactions SIII, SGII, SkI4 $\mathrm{\ensuremath{\Lambda}}N$ LY1 SLL4, respectively. Deformation causes more deeply bound states smaller extension density distributions radii. possibility structures...

We explore the possibilities of hyperon-nucleon pairing, involving lambda or sigma- hyperons, using different Nijmegen potentials. find possible very large nsigma- gaps and estimate their relevance for neutron star physics.