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相关论文: Predicting the single-proton/neutron potentials in…

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We investigate single-particle properties in infinite nuclear matter using a variety of interactions. One of the focal points is to study the impact of chiral three-nucleon forces on the nucleon self-energy and related quantities, such as…

核理论 · 物理学 2020-12-10 Francesca Sammarruca , Herbert Muether , Ruprecht Machleidt

The ability of the Gogny forces of the D1 family to describe the nucleon-nucleus scattering is studied. To this end, we use an optical model potential built up using a semi-microscopic nuclear matter approach. The real and imaginary parts…

核理论 · 物理学 2020-12-15 Juan Lopez-Moraña , Xavier Viñas

In current simulations of fission, the number of protons and neutrons in a given fission fragment is almost always obtained by integrating the total density of particles in the sector of space that contains the fragment. Because of the…

核理论 · 物理学 2020-08-19 Marc Verriere , Nicolas Schunck , Toshihiko Kawano

The neutron and proton single-particle spectral functions in asymmetric nuclear matter fulfill energy weighted sum rules. The validity of these sum rules within the self-consistent Green's function approach is investigated. The various…

核理论 · 物理学 2007-05-23 Arnau Rios , Artur Polls , Herbert Müther

The isospin dependence of the nucleon effective mass is investigated in the framework of the Dirac Brueckner-Hartree-Fock (DBHF) approach. The definition of nucleon scalar and vector effective masses in the relativistic approach is…

核理论 · 物理学 2009-11-10 Zhong-yu Ma , Jian Rong , Bao-Qiu Chen , Zhi-Yuan Zhu , Hong-Qiu Song

A relativistic extension of the particle-particle hole-hole ring-diagram many-body formalism is developed by using the Dirac equation for single-particle motion in the medium. Applying this new formalism, calculations are performed for…

核理论 · 物理学 2008-11-26 M. F. Jiang , R. Machleidt , T. T. S. Kuo

Using the Dirac-Brueckner-Hartree-Fock (DBHF) approach including the hyperon degrees of freedom, we investigate the properties of neutron-star matter. To handle the hyperons in matter, we first examine the importance of the space part of…

核理论 · 物理学 2014-10-28 Tetsuya Katayama , Koichi Saito

We present a comprehensive and pedagogic discussion of the properties of photons in cold and dense nuclear matter based on the resummed one-loop photon self energy. Correlations between electrons, muons, protons and neutrons in beta…

高能天体物理现象 · 物理学 2018-04-18 Stephan Stetina , Ermal Rrapaj , Sanjay Reddy

We present a relativistic chiral effective theory for symmetric and asymmetric nuclear matter taken in the Hartree-Fock scheme. The nuclear binding is insured by a background chiral invariant scalar field associated with the radial…

核理论 · 物理学 2008-12-18 E. Massot , G. Chanfray

The properties and the isospin dependence of the liquid-gas phase transition in hot asymmetric nuclear matter have been investigated within the framework of the finite temperature Brueckner-Hartree-Fock approach extended to include the…

核理论 · 物理学 2008-11-26 W. Zuo , Z. H. Li , A. Li , U. Lombardo

Phenomenological approach to inhomogeneous nuclear matter is useful to describe fundamental properties of atomic nuclei and neutron star crusts in terms of the equation of state of uniform nuclear matter. We review a series of researches…

核理论 · 物理学 2015-06-17 Kei Iida , Kazuhiro Oyamatsu

The neutron-proton mass difference in (isospin asymmetric) nuclear matter and finite nuclei is studied in the framework of a medium-modified Skyrme model. The proposed effective Lagrangian incorporates both the medium influence of the…

核理论 · 物理学 2014-11-20 Ulf-G. Meißner , A. M. Rakhimov , A. Wirzba , U. T. Yakhshiev

Within the minimum model of neutron stars (NS) consisting of neutrons, protons and electrons, a new approach is proposed for inferring the symmetry energy of super-dense neutron-rich nucleonic matter above twice the saturation density…

核理论 · 物理学 2020-06-01 Bao-An Li , Wen-Jie Xie

The theory of the nuclear energy-density functional is used to provide a unified and thermodynamically consistent treatment of all regions of cold non-accreting neutron stars. In order to assess the impact of our lack of complete knowledge…

高能天体物理现象 · 物理学 2020-01-28 J. M. Pearson , N. Chamel , A. Y. Potekhin , A. F. Fantina , C. Ducoin , A. K. Dutta , S. Goriely

We investigate the $^1S_0$ neutron and proton superfluidity in isospin asymmetric nuclear matter. We have concentrated on the isospin dependence of the pairing gaps and the effect of a microscopic three-body force. It is found that as the…

核理论 · 物理学 2008-11-26 W. Zuo , G. C. Lu

Using various relativistic mean-field models, including the nonlinear ones with meson field self-interactions, those with density-dependent meson-nucleon couplings, and the point-coupling models without meson fields, we have studied the…

核理论 · 物理学 2008-11-26 Lie-Wen Chen , Che Ming Ko , Bao-An Li

The nuclear-mass dependence of azimuthal cross section asymmetries with respect to charge and longitudinal polarization of the lepton beam is studiedfor hard exclusive electroproduction of real photons. The observed beam-charge and…

高能物理 - 实验 · 物理学 2010-04-06 The HERMES collaboration , A. Airapetian

A new finite-range representation of the JLM effective nucleon-nucleon interaction is suggested based on the CDM3Y density dependent functional and M3Y-Paris interaction. The density dependence has been carefully adjusted at each energy so…

核理论 · 物理学 2007-08-30 Dao T. Khoa , Do Cong Cuong

In the framework of the isospin-dependent Boltzmann-Uehling-Uhlenbeck transport model, effect of the momentum dependence of nuclear symmetry potential on nuclear transverse and elliptic flows in the neutron-rich reaction…

核理论 · 物理学 2015-06-04 Lei Zhang , Yuan Gao , Yun Du , Guang-Hua Zuo , Gao-Chan Yong

The density dependence of nuclear symmetry energy remains poorly constrained. Starting from precise empirical values of the nuclear volume and surface symmetry energy coefficients and the nuclear saturation density, we show how in the ambit…

核理论 · 物理学 2015-06-12 B. K. Agrawal , J. N. De , S. K. Samaddar
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