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Related papers: Clustering in nuclei at finite temperature

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The understanding of the interaction of nucleons in nuclear and neutron-rich matter at non-zero temperature is important for a variety of applications ranging from heavy-ion collisions to nuclear astrophysics. In this paper we apply the…

Nuclear Theory · Physics 2009-08-14 Francesca Sammarruca

By using the self-consistent Hartree-Fock-Bogoliubov-Popov theory, we present a detailed study of the mean-field stability of spherically trapped Bose-Fermi mixtures at finite temperature. We find that, by increasing the temperature, the…

Statistical Mechanics · Physics 2007-05-23 Xia-Ji Liu , Michele Modugno , Hui Hu

Electrical properties of multilayer arrays of germanium nanoclusters grown on the silicon (001) surface at low temperature have been studied. A correlation between the quantum dot (QD) density estimated from STM and the charge accumulated…

Mesoscale and Nanoscale Physics · Physics 2009-11-16 O. V. Feklisova , E. B. Yakimov , L. V. Arapkina , V. A. Chapnin , K. V. Chizh , V. P. Kalinushkin , V. A. Yuryev

Difference in nucleation of Ge quantum dots during Ge deposition at low (< 600C) and high (> 600C) temperatures on the Si(001) surface is studied by high resolution scanning tunneling microscopy. Two process resulting in appearance of…

Materials Science · Physics 2012-05-11 V. A. Yuryev , L. V. Arapkina

We conducted a study on the thermal properties of stellar matter with the nuclear energy density functional BCPM. This functional is based on microscopic Brueckner-Hartree-Fock calculations and has demonstrated success in describing cold…

Nuclear Theory · Physics 2024-07-17 Clara Dehman , Mario Centelles , Xavier Viñas

We systematically investigate the thermodynamic properties of homogeneous nuclear matter with light clusters at low densities and finite temperatures using a generalized nonlinear relativistic mean-field (gNL-RMF) model, in which light…

Nuclear Theory · Physics 2017-07-05 Zhao-Wen Zhang , Lie-Wen Chen

The thermal and phase properties of a multifragmentation model which uses clusters as degrees of freedom, are explored as a function of isospin. A good qualitative agreement is found with the phase diagram of asymmetric nuclear matter as…

Nuclear Theory · Physics 2008-11-26 Ad. R. Raduta , F. Gulminelli

We develop a phenomenological statistical model for dilute star matter at finite temperature, in which free nucleons are treated within a mean-field approximation and nuclei are considered to form a loosely interacting cluster gas. Its…

Nuclear Theory · Physics 2010-12-24 Ad. R. Raduta , F. Gulminelli

The classical theory of grain nucleation suffers from both theoretical and predictive deficiencies. We strive to alleviate these deficiencies in our understanding of dust formation and growth by utilizing an atomistic model of nucleation.…

Solar and Stellar Astrophysics · Physics 2016-11-04 Christopher Mauney , Davide Lazzati

We find that the abundance of large clusters of nucleons in neutron-rich matter at sub-nuclear density is greatly reduced by finite temperature effects when matter is close to beta-equilibrium. Large nuclei and exotic non-spherical nuclear…

High Energy Astrophysical Phenomena · Physics 2018-04-25 Alessandro Roggero , Jérôme Margueron , Luke F. Roberts , Sanjay Reddy

The features of the emissions of light particles (LP), charged particles (CP), intermediate mass fragments (IMF) and the largest fragment (MAX) are investigated for $^{129}Xe$ as functions of temperature and 'freeze-out' density in the…

Nuclear Theory · Physics 2014-11-18 Y. G. Ma

Finite temperature effects in electromagnetic transitions in nuclei contribute to many aspects of nuclear structure and astrophysically relevant nuclear reactions. While electric dipole transitions have already been extensively studied, the…

Nuclear Theory · Physics 2023-10-16 Amandeep Kaur , Esra Yüksel , Nils Paar

Structure of hot dense matter at subnuclear densities is investigated by quantum molecular dynamics (QMD) simulations. We analyze nucleon distributions and nuclear shapes using two-point correlation functions and Minkowski functionals to…

Nuclear Theory · Physics 2014-11-18 Gentaro Watanabe , Katsuhiko Sato , Kenji Yasuoka , Toshikazu Ebisuzaki

The transition from cluster structures to extremely elongated ellipsoidal shapes and nuclear molecules in light $A=12-50$ $(N \sim Z)$ nuclei has been studied within the framework of covariant density functional theory. Nodal structure of…

Nuclear Theory · Physics 2018-11-29 A. V. Afanasjev

Dilute multi $\alpha$ cluster condensed states with spherical and axially deformed shapes are studied with the Gross-Pitaevskii equation and Hill-Wheeler equation, where the $\alpha$ cluster is treated as a structureless boson. Applications…

Nuclear Theory · Physics 2009-11-10 Taiichi Yamada , Peter Schuck

We investigate the impact of pairing correlations on the behavior of unstable asymmetric nuclear matter at low temperature. We focus on the relative role of the pairing interaction, coupling nucleons of the same type (neutrons or protons),…

Nuclear Theory · Physics 2015-06-18 Stefano Burrello , Maria Colonna , Francesco Matera

Equilibrium phase diagrams for neutron star matter at subnuclear densities are obtained at zero temperature. Spherical, rod-like and slab-like nuclei as well as spherical and rod-like nuclear bubbles are taken into account by using a…

Astrophysics · Physics 2009-10-31 Gentaro Watanabe , Kei Iida , Katsuhiko Sato

This paper delves into a fundamental aspect of quantum statistical mechanics -- the absence of thermal phase transitions in one-dimensional (1D) systems. Originating from Ising's analysis of the 1D spin chain, this concept has been pivotal…

Quantum Physics · Physics 2025-02-24 Yusuke Kimura , Tomotaka Kuwahara

Thermal behavior of isoscalar and isovector proton-neutron (pn) pairing energies at finite temperature are investigated by the shell model calculations. These pn pairing energies can be estimated by double differences of "thermal" energies…

Nuclear Theory · Physics 2009-11-11 K. Kaneko , M. Hasegawa

A recent stacking analysis of Planck HFI data of galaxy clusters (Hurier 2016) allowed to derive the cluster temperatures by using the relativistic corrections to the Sunyaev-Zel'dovich effect (SZE). However, the temperatures of…

Cosmology and Nongalactic Astrophysics · Physics 2017-06-28 P. Marchegiani , S. Colafrancesco