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Structure of cold and hot dense matter at subnuclear densities is investigated by quantum molecular dynamics (QMD) simulations. Obtained phase diagrams show that the density of the phase boundaries between the different nuclear structures…

天体物理学 · 物理学 2007-05-23 Gentaro Watanabe , Katsuhiko Sato , Kenji Yasuoka , Toshikazu Ebisuzaki

A self-consistent description for hot $\Lambda$ hypernuclei in hypothetical big boxes is developed within the relativistic Thomas-Fermi approximation in order to investigate directly the liquid-gas phase coexistence in strangeness finite…

核理论 · 物理学 2016-11-30 Jinniu Hu , Zhaowen Zhang , Shishao Bao , Hong Shen

In this work, the particle number projection at finite temperature is incorporated into self-consistent Skyrme density functional calculations. In particular, the energies of compound nuclei as a function of deformations are calculated…

核理论 · 物理学 2026-03-02 Jiawei Chen , Yu Qiang , Junchen Pei

The thermal and statistical properties of hadronic matter under some extreme conditions are investigated using an exactly solvable canonical ensemble model. A unified model describing both the fragmentation of nuclei and the thermal…

核理论 · 物理学 2008-11-26 K. C. Chase , A. Z. Mekjian , P. Meenakshisundaram

Analyses of multifragmentation in terms of the Fisher droplet model (FDM) and the associated construction of a nuclear phase diagram bring forth the problem of the actual existence of the nuclear vapor phase and the meaning of its…

核实验 · 物理学 2009-11-11 L. G. Moretto , J. B. Elliott , L. Phair

The thermodynamics of the electromagnetic radiation from heated nuclei is developed on basis of the Landau theory of a Fermi liquid [1]. The case of non-spherical nuclei is considered, in which the quasiparticle energy spectrum is not…

核理论 · 物理学 2007-05-23 V. G. Nosov , A. M. Kamchatnov

Correlation effects in nuclear matter at finite temperatures are studied for subnuclear densities ($\rho<\rho_0$) and medium excitation energy, where a nonrelativistic potential approach is possible. A quantum statistical approach is given,…

核理论 · 物理学 2009-10-31 G. Roepke , A. Schnell

Apart from the higher limits of isospin and temperature, the properties of atomic nuclei are intriguing and less explored at the limits of lowest but finite temperatures. At very low temperatures there is a strong interplay between the…

核理论 · 物理学 2015-04-28 A. K. Rhine Kumar , P. Arumugam , N. Dinh Dang

The status of experiments on determination of level density and partial widths of the nuclear reaction products emission in diapason of nucleon binding energy is presented. There are analyzed the sources and magnitude of probable…

核实验 · 物理学 2011-05-25 A. M. Sukhovoj , V. A. Khitrov

We explore the use of mean field models to approximate microscopic nuclear equations of state derived from chiral effective field theory across the densities and temperatures relevant for simu- lating astrophysical phenomena such as…

核理论 · 物理学 2016-06-22 Ermal Rrapaj , Alessandro Roggero , Jeremy W. Holt

Nuclear level density and $\gamma$-ray strength functions of $^{121,122}$Sn below the neutron separation energy are extracted with the Oslo method using the ($^3$He,$^3$He$^\prime\gamma$) and ($^3$He,$\alpha \gamma$) reactions. The level…

By using freeze-out properties of multifragmenting hot nuclei produced in quasifusion central $^{129}$Xe+$^{nat}$Sn collisions at different beam energies (32, 39, 45 and 50 AMeV) which were estimated by means of a simulation based on…

核实验 · 物理学 2022-11-21 B. Borderie , S. Piantelli , J. D. Frankland , N. Le Neindre

The relativistic mean field approach, within a theoretical framework known as the chiral confining model incorporating chiral symmetry breaking and quark confinement effects, is applied for the first time to finite nuclei. Model parameters…

核理论 · 物理学 2026-05-27 M. Chamseddine , J. -P. Ebran , E. Khan , B. K. Pradhan , J. Margueron , H. Hansen , G. Chanfray

A study of the correlation between nuclear temperatures and symmetry energy is presented for heavy-ion collisions at intermediate energies via the isospin-dependent quantum molecular-dynamics model. It is found that different symmetry…

核理论 · 物理学 2022-08-10 Fan Zhang , Kai-Lei Wang , Li-Ding Jin , Hui-Xiao Duan , Cheng Li

Kernel density estimation is a convenient way to estimate the probability density of a distribution given the sample of data points. However, it has certain drawbacks: proper description of the density using narrow kernels needs large data…

数据分析、统计与概率 · 物理学 2015-02-27 Anton Poluektov

A solution is presented for the spectrum of high-energy gamma-ray burst photons confined to a quasi-thermal baryonic photosphere. The solution is valid in the steady-state limit assuming the region under consideration is optically thick to…

天体物理学 · 物理学 2009-11-13 Enrico Ramirez-Ruiz

The nuclear level density of $^{115}$Sn has been measured in an excitation energy range of $\sim $2 - 9 MeV using the experimental neutron evaporation spectra from the $^{115}$In($p,n$)$^{115}$Sn reaction. The experimental level densities…

Cross sections for neutron capture in the range of unresolved resonances are predicted for more than 140 spin-0 target nuclei with A > 50. Allowing the breaking of spherical and axial symmetry in nearly all these nuclei a combined…

核实验 · 物理学 2015-06-22 Eckart Grosse , Arnd R. Junghans , Ralph Massarczyk

A general shell model formalism for the nonmesonic weak decay of the hypernuclei has been developed.It involves a partial wave expansion of the emitted nucleon waves,preserves naturally the antisymmetrization between the escaping particles…

核理论 · 物理学 2007-05-23 F. Krmpotic , D. Tadic

In stellar environments nuclei appear at finite temperatures, becoming extremely hot in core-collapse supernovae and neutron star mergers. However, due to theoretical and computational complexity, most model calculations of nuclear…

核理论 · 物理学 2023-09-19 Ante Ravlić , Esra Yüksel , Tamara Nikšić , Nils Paar