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相关论文: Isoscaling bearing information on the nuclear calo…

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We discuss different aspects which could influence temperatures deduced from experimental isotopic yields in the multifragmentation process. It is shown that fluctuations due to the finite size of the system and distortions due to the decay…

核理论 · 物理学 2011-07-19 S. R. Souza , W. P. Tan , R. Donangelo , C. K. Gelbke , W. G. Lynch , M. B. Tsang

Following the lead of a recent work we perform a variational principle model calculation for the nuclear caloric curve. A Skyrme type interaction with and without momentum dependence is used. The calculation is done for a large nucleus,…

核理论 · 物理学 2009-11-11 S. Das Gupta

Data from a number of different experimental measurements have been used to construct caloric curves for five different regions of nuclear mass. These curves are qualitatively similar and exhibit plateaus at the higher excitation energies.…

核实验 · 物理学 2009-11-07 J. B. Natowitz , R. Wada , K. Hagel , T. Keutgen , M. Murray , A. Makeev , L. Qin , P. Smith , C. Hamilton

Assuming a schematic form of the nucleon effective mass as a function of nuclear excitation energy and mass, we provide a simple explanation for understanding the experimentally observed mass dependence of the nuclear caloric curve. It is…

核实验 · 物理学 2009-11-13 D. V. Shetty , G. A. Souliotis , S. Galanopoulos , S. J. Yennello

The sharp microcanonical multifragmentation model from [Al. H. Raduta and Ad. R. Raduta, Phys. Rev. C 55, 1344 (1997); Phys. Rev. C, in press] is employed for evaluating the nuclear caloric curve predictions of nine isotopic thermometers…

核理论 · 物理学 2009-11-06 Al. H. Raduta , Ad. R. Raduta

The properties of the nuclear isoscaling at finite temperature are investigated and the extent to which its parameter $\alpha$ holds information on the symmetry energy is examined. We show that, although finite temperature effects…

核理论 · 物理学 2009-11-06 S. R. Souza , M. B. Tsang , B. V. Carlson , R. Donangelo , W. G. Lynch , A. W. Steiner

The caloric curve (excitation energy per particle as a function of temperature) for finite nuclei is calculated within the non-linear Walecka model for different proton fractions and different parameterizations. The results obtained are…

核理论 · 物理学 2009-11-07 C. Providencia , D. P. Menezes , L. Brito

In this work we calculate the caloric curve (excitation energy per particle as a function of temperature) for finite nuclei within the non--linear Walecka model for different proton fractions. It is shown that the caloric curve is sensitive…

核理论 · 物理学 2009-11-07 D. P. Menezes , C. Providencia

The caloric curve for mononuclear configurations is studied with a schematic model. We investigate the dependence of the entropy on the density and effective mass profiles. A plateau in the caloric curve is a direct result of decreasing…

核理论 · 物理学 2009-11-10 L. G. Sobotka , R. J. Charity , J. Toke , W. U. Schroder

A quantitative description of the properties of hot nuclear matter will be needed for the interpretation of the available and forthcoming astrophysical data, providing information on the post merger phase of a neutron star coalescence. We…

核理论 · 物理学 2022-11-30 Lucas Tonetto , Omar Benhar

The isobaric caloric curve is considered in subcritical states region. The energy fluctuations along the caloric curve are determined for small nuclear systems which consist of limited number of nucleons. The temperature dependence of heat…

核理论 · 物理学 2025-10-21 A. I. Sanzhur , S. Shlomo

We develop an improved Statistical Multifragmentation Model that provides the capability to calculate calorimetric and isotopic observables with precision. With this new model we examine the influence of nuclear isospin on the fragment…

核实验 · 物理学 2009-11-10 W. P. Tan , S. R. Souza , R. J. Charity , R. Donangelo , W. G. Lynch , M. B. Tsang

A systematic comparison of different isotopic temperatures with the thermodynamical temperature of a multifragment system is made on the basis of the Statistical Multifragmentation Model. It is demonstrated that isotopic temperatures are…

核理论 · 物理学 2008-11-26 J. P. Bondorf , A. S. Botvina , I. N. Mishustin

A method for measurement of energy of high-energy particles by a thin calorimeter, is presented. The method is based on the correlation analysis of dependence of number of secondary particles, $N_e$, at observation level and the relation of…

天体物理仪器与方法 · 物理学 2013-10-22 A. Sh. Gaitinov , S. A. Ibraimova , I. A. LebedeV , A. I Lebedeva

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

Thermal properties of asymmetric nuclear matter, including the temperature dependence of the symmetry energy, single-particle properties, and differential isospin fractionation, are investigated with different neutron-proton effective mass…

核理论 · 物理学 2015-01-23 Jun Xu , Lie-Wen Chen , Bao-An Li

Using Monte Carlo histogram methods, the microcanonical caloric curve is computed for the Ising model in two and three dimensions with fixed magnetization. Whereas the signatures of a first order phase transition are clearly visible for…

凝聚态物理 · 物理学 2015-06-24 Michel Pleimling , Alfred Hueller

Using the model of hexagonal clusters we express the surface, curvature and Gauss curvature coefficients of the nuclear binding energy in terms of its bulk coefficient. Using the derived values of these coefficients and a single fitting…

核理论 · 物理学 2020-12-22 V. V. Sagun , K. A. Bugaev , A. I. Ivanytskyi

The systematic data set on isotopic effects in spectator fragmentation collected recently at the GSI laboratory permits the investigation of the N/Z dependence of the nuclear caloric curve which is of interest in several respects. In…

核实验 · 物理学 2019-08-14 W. Trautmann

A systematic study of the effect of fragment$-$fragment interaction, quantum statistics, $\gamma$-feeding and collective flow is made in the extraction of the nuclear temperature from the double ratio of the isotopic yields in the…

核理论 · 物理学 2009-10-31 B. K. Agrawal , S. K. Samaddar , Tapas Sil , J. N. De
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