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We employ a variational method, in the framework of the Thomas-Fermi approximation, to study the effect of the symmetry energy on the neutron skin thickness and the symmetry energy coefficients of various neutron rich nuclei. We concentrate…

核理论 · 物理学 2017-05-17 M. C. Papazoglou , Ch. C. Moustakidis

Interplay between the dependence of symmetry energy on density and the variation of nucleonic densities across nuclear surface is discussed. That interplay gives rise to the mass dependence of the symmetry coefficient in an energy formula.…

核理论 · 物理学 2009-05-29 Pawel Danielewicz , Jenny Lee

We formulate and implement a microscopic framework to derive an optical potential from the solution to an effective Hamiltonian and use it to calculate neutron scattering cross sections for the deformed nuclei $^{24}$Mg, $^{48}$Cr and…

核理论 · 物理学 2026-04-02 J. Boström , B. G. Carlsson , A. Idini

Proton and neutron densities from Skyrme-Hartree-Fock (SHF) calculations are used to generate non-local (g-folding) proton-nucleus optical potentials. They are formed by folding the densities with realistic nucleon-nucleon interactions. The…

核理论 · 物理学 2011-03-28 S. Karataglidis , K. R. Henninger , W. R. Richter , K. Amos

Many approaches to nucleon-nucleus elastic and inelastic scattering are based on the use of the free-space nucleon-nucleon transition amplitude. In calculations where the full spin-dependence of this amplitude is needed, its use is more…

核理论 · 物理学 2009-11-07 R. Crespo , A. M. Moro

Using two-nucleon and three-nucleon interactions derived in the framework of chiral perturbation theory (ChPT) with and without the explicit $\Delta$ isobar contributions, we calculate the energy per particle of symmetric nuclear matter and…

核理论 · 物理学 2016-12-21 Domenico Logoteta , Ignazio Bombaci , Alejandro Kievsky

The effective isospin-density dependent pairing interaction (P1) [S. S. Zhang, U. Lombardo and E. G. Zhao, Sci. Chin. Phys. Mech. Astro. {\bf 54}, 236 (2011)] extracted from neutron pairing gaps for $^1$S$_0$ in asymmetric nuclear matter…

核理论 · 物理学 2021-01-04 Xu Meng , Shisheng Zhang , Lin Guo , Lisheng Geng , Ligang Cao

Nucleon self-energies and interaction potentials in supernova (SN) matter, which are known to have an important effect on nucleosynthesis conditions in SN ejecta are investigated. Corresponding weak charged-current interaction rates with…

核理论 · 物理学 2015-05-22 Matthias Hempel

In this article we study properties of isospin asymmetric nuclear matter in the generalized Skyrme model. This is achieved by canonically quantizing the isospin collective degrees of freedom of the recently found multi-wall skyrmion…

高能物理 - 理论 · 物理学 2024-03-12 Paul Leask , Miguel Huidobro , Andrzej Wereszczynski

Compound resonances in nucleon-nucleus scattering are related to the discrete spectrum of the target. Such resonances can be studied in a unified and general framework by a scattering model that uses sturmian expansions of postulated…

核理论 · 物理学 2015-06-26 K. Amos , L. Canton , G. Pisent , J. P. Svenne , D. van der Knijff

Within an isospin- and momentum-dependent transport model for nuclear reactions at intermediate energies, we investigate the interplay of the nucleon-nucleon short-range correlations (SRC) and nuclear symmetry energy $E_{sym}(\rho)$ on hard…

核理论 · 物理学 2018-01-08 Gao-Chan Yong , Bao-An Li

We compute isospin-violating meson-nucleon coupling constants and their consequent charge-symmetry-breaking nucleon-nucleon potentials. The couplings result from evaluating matrix elements of quark currents between nucleon states in a…

核理论 · 物理学 2008-11-26 S. Gardner , C. J. Horowitz , J. Piekarewicz

Equation of states (EOS) of the spin-polarized nuclear matter (NM) is studied within the Hartree-Fock (HF) formalism using the realistic density dependent nucleon-nucleon interaction. With a nonzero fraction $\Delta$ of spin-polarized…

核理论 · 物理学 2022-06-02 Nguyen Hoang Dang Khoa , Ngo Hai Tan , Dao T. Khoa

Hyperfine interactions between electron and nuclear spins have been widely used in material science, organic chemistry, and structural biology as a sensitive probe to the local chemical environment through spatial identification of nuclear…

介观与纳米尺度物理 · 物理学 2022-12-28 Jinkyung Kim , Kyungju Noh , Yi Chen , Fabio Donati , Andreas J. Heinrich , Christoph Wolf , Yujeong Bae

We present a treatment of cold hydrogen-antihydrogen collisions based on the asymptotic properties of atom-antiatom interactions. We derive general formulas for the elastic and inelastic cross sections and for the scattering lengths and…

原子物理 · 物理学 2009-11-13 A. Yu. Voronin , P. Froelich

The cross section for coherent elastic neutrino-nucleus scattering (CE$\nu$NS) depends on the response of the target nucleus to the external current, in the Standard Model (SM) mediated by the exchange of a $Z$ boson. This is typically…

高能物理 - 唯象学 · 物理学 2020-10-26 Martin Hoferichter , Javier Menéndez , Achim Schwenk

In this work, Na isotopes with mass varying from $A=$ 20 to 31 have been studied using DJ16A, JISP16 and N3LO microscopic effective interactions in the $sd$-shell. These effective interactions are derived for $sd$-shell using no-core shell…

核理论 · 物理学 2023-02-13 Subhrajit Sahoo , Praveen C. Srivastava , Toshio Suzuki

We consider the impact of neutrino self-interactions described by an effective four-fermion coupling on cosmological observations. Implementing the exact Boltzmann hierarchy for interacting neutrinos first derived in [arxiv:1409.1577] into…

宇宙学与河外天体物理 · 物理学 2017-11-29 Isabel M. Oldengott , Thomas Tram , Cornelius Rampf , Yvonne Y. Y. Wong

The neutral-current neutrino-nucleus scattering is calculated through the neutrino-induced knocked-out nucleon process in the quasielastic region by using a relativistic single particle model for the bound and continuum states. The incident…

核理论 · 物理学 2008-11-26 K. S. Kim , B. G. Yu , M. K. Cheoun , T. K. Choi , M. T. Chung
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