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Nuclei in dense matter are influenced by the medium. In the cluster mean field approximation, an effective Schr\"odinger equation for the $A$-particle cluster is obtained accounting for the effects of the correlated medium such as…

Nuclear Theory · Physics 2009-01-28 G. Röpke

Specific heat measurements constitute one of the most powerful experimental methods to probe fundamental excitations in solids. After the proposition of Einstein's model, more than one century ago (Annalen der Physik \textbf{22}, 180…

Materials Science · Physics 2016-02-25 Mariano de Souza , Ricardo Paupitz , Antonio Seridonio , Roberto E. Lagos

The description of collective motion in nuclei at finite temperature using the framework of the random phase approximation is discussed. We focus on the special case of the isovector response function of hot nuclear matter using various…

Nuclear Theory · Physics 2007-05-23 Abdellatif Abada , Dominique Vautherin

In this work, we focus on different length scales within the dynamics of nucleons in conditions according to the neutron star crust, with a semiclassical molecular dynamics model, studying isospin symmetric matter at subsaturation…

Nuclear Theory · Physics 2014-12-22 Pablo N. Alcain , Pedro A. Giménez Molinelli , Claudio O. Dorso

We investigate nuclear matter at finite temperature and density, including the formation of light clusters up to the alpha particle The novel feature of this work is to include the formation of clusters as well as their dissolution due to…

Nuclear Theory · Physics 2010-04-06 S. Typel , G. Röpke , T. Klähn , D. Blaschke , H. H. Wolter

In high energy nuclear collisions, production rates of light nuclei agree with the predictions of an ideal gas at a temperature $T=155 \pm 10$ MeV. In an equilibrium hadronic medium of this temperature, light nuclei cannot survive. In this…

High Energy Physics - Phenomenology · Physics 2019-11-14 P. Castorina , H. Satz

The temperature in the crust of an accreting neutron star, which comprises its outermost kilometer, is set by heating from nuclear reactions at large densities, neutrino cooling, and heat transport from the interior. The heated crust has…

We systematically explore and show the existence of finite-temperature continuous quantum phase transition (CTQPT) at a critical point, namely, during solidification or melting such that the first-order thermal phase transition is a special…

Strongly Correlated Electrons · Physics 2014-05-20 Andrew Das Arulsamy

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 thermal model properly describes the production yields of light nuclei in relativistic heavy-ion collisions even so the loosely bound sizable nuclei cannot exist in the dense and hot hadron gas at a chemical freeze-out. Within the…

Nuclear Theory · Physics 2017-06-07 Stanislaw Mrowczynski

A brief review of models to describe nuclear structure and reactions properties is presented, starting from the historical shell model picture and encompassing modern ab initio approaches. A selection of recent theoretical results on…

Nuclear Theory · Physics 2016-04-20 Sonia Bacca

We study slow collective motion of isoscalar type at finite excitation. The collective variable is parameterized as a shape degree of freedom and the mean field is approximated by a deformed shell model potential. We concentrate on…

Nuclear Theory · Physics 2009-10-28 Helmut Hofmann , Fedor A. Ivanyuk , Shuhei Yamaji

Caloric curves have traditionally been derived within the microcanonical ensemble via dS/dE=1/T or within the canonical ensemble via E=T^2*d(ln Z)/dT. In the thermodynamical limit, i.e., for large systems, both caloric curves give the same…

Nuclear Theory · Physics 2007-05-23 A. Schiller , M. Guttormsen , M. Hjorth-Jensen , J. Rekstad , S. Siem

We study the latent heat of the liquid-gas phase transition in symmetric nuclear matter using self-consistent mean-field calculations with a few Skyrme forces. The temperature dependence of the latent heat is rather independent of the…

Nuclear Theory · Physics 2011-05-05 Arianna Carbone , Artur Polls , Arnau Rios , Isaac Vidaña

The in-medium nucleon-nucleon cross section is calculated starting from the thermodynamic T-matrix at finite temperatures. The corresponding Bethe-Salpeter-equation is solved using a separable representation of the Paris…

Nuclear Theory · Physics 2009-09-25 T. Alm , G. Roepke , M. Schmidt

The thermodynamics of pairing phase-transition in nuclei is studied in the canonical ensemble and treating the pairing correlations in a finite-temperature variation after projection BCS approach (FT-VAP). Due to the restoration of particle…

Nuclear Theory · Physics 2013-10-30 Danilo Gambacurta , Denis Lacroix , Nicu Sandulescu

Understanding the mechanisms of induced nuclear fission for a broad range of neutron energies could help resolve fundamental science issues, such as the formation of elements in the universe, but could have also a large impact on societal…

Nuclear Theory · Physics 2015-03-26 N. Schunck , D. Duke , H. Carr

A light front field theory for finite temperature and density is currently being developed. It will be used here to describe the transition region from quark matter to nuclear matter relevant in heavy ion collisions and in the early…

High Energy Physics - Phenomenology · Physics 2007-05-23 M. Beyer

One-dimensional model of a system where first-order phase transition occurs is examined in the present paper. It is shown that basic properties of the phenomenon, such as a well defined temperature of transition, are caused both by…

Statistical Mechanics · Physics 2009-07-29 Marcin Ostrowski

Pairing transition at finite temperature was investigated by the shell model and BCS calculations. The definitive signature of pairing transition is identified by a "transition temperature" $T_t$ estimated from a "thermal" odd-even mass…

Nuclear Theory · Physics 2009-11-10 K. Kaneko , M. Hasegawa
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