English
Related papers

Related papers: Isospin fluctuations in spinodal decomposition

200 papers

A three parameter scaling relationship between isotopic distributions for elements with Z$\leq 8$ has been observed that allows a simple description of the dependence of such distributions on the overall isospin of the system. This scaling…

Nuclear Experiment · Physics 2008-11-26 M. B. Tsang , W. A. Friedman , C. K. Gelbke , W. G. Lynch , G. Verde , H. Xu

The relativistic mean field theory in combination with the analytic continuation in the coupling constant method is used to determine the energies and widths of single-particle resonant states in Sn isotopes. It is shown that there exists…

Nuclear Theory · Physics 2009-11-11 Jian You Guo , Xiang Zheng Fang

Features of particle emission and critical point behavior are investigated as functions of the isospin of disassembling sources and temperature at a moderate freeze-out density for medium-size Xe isotopes in the framework of isospin…

Nuclear Theory · Physics 2009-11-06 Y. G. Ma , Q. M. Su , W. Q. Shen , D. D. Han , J. S. Wang , X. Z. Cai , D. Q. Fang , H. Y. Zhang

The multifragmentation of excited spherical nuclear sources with various N/Z ratios and fixed mass number is studied within dynamical and statistical models. The dynamical model treats the multifragmentation process as a final stage of the…

Nuclear Theory · Physics 2011-01-25 A. B. Larionov , A. S. Botvina , M. Colonna , M. Di Toro

It is generally believed that isospin would diminish in its importance as we go towards heavy mass region due to isospin mixing caused by the growing Coulomb forces. However, it was realized quite early that isospin could become an…

Nuclear Theory · Physics 2018-06-13 Ashok Kumar Jain , Swati Garg

We present a detailed study of isospin dynamics in peripheral collisions at Fermi energies. We consider symmetric and mixed collisions of (124,112)Sn isotopes at 35 and 50 AMeV to study the isospin transport between the different reaction…

Nuclear Theory · Physics 2009-11-13 J. Rizzo , M. Colonna , V. Baran , M. Di Toro , H. H. Wolter , M. Zielinska-Pfabe

This study explores the role of nucleon exchange for the generation of the fission fragment angular momenta. For a number of typical fission cases, samples of 10,000 shape evolutions are generated by Langevin simulation and, subsequently,…

Nuclear Theory · Physics 2026-03-31 Jorgen Randrup , Pavel Nadtochy , Christelle Schmitt , Katarzyna Mazurek

In the present paper, we explore the idea of isospin conservation in new situations and contexts based on the directions provided by our earlier works. We present the results of our calculations for the relative yields of neutron-rich…

Nuclear Theory · Physics 2019-11-19 S. Garg , B. Maheshwari , D. Choudhury , A. K. Jain

Background: Neutron stars are astronomical systems with nucleons submitted to extreme conditions. Due to the long range coulomb repulsion between protons, the system has structural inhomogeneities. These structural inhomogeneities arise…

Nuclear Theory · Physics 2017-08-07 P. N. Alcain , C. O. Dorso

Studies on the isospin of fragments resulting from the disassembly of highly excited large thermal-like nuclear emitting sources, formed in the ^{197}Au + ^{197}Au reaction at 35 MeV/nucleon beam energy, are presented. Two different decay…

Multiplicity distributions of neutral and charged particles arising from squeezed coherent states are investigated. Projections onto global isospin states are considered. We show how a small amount of squeezing can significantly change the…

High Energy Physics - Phenomenology · Physics 2011-08-11 I. M. Dremin , R. C. Hwa

Investigation of the effect of the dynamical stage of heavy-ion collisions indicates that the increasing width of the initial isospin distributions is reflected by a significant modification of the isoscaling slope for the final isotopic…

Nuclear Theory · Physics 2009-11-11 M. Veselsky

We investigate the isospin dependence of pseudospin symmetry in the chain of tin isotopes (from $^{120}$Sn until $^{170}$Sn). Using a Woods-Saxon parametrization of the nuclear potential for these isotopes we study in detail the effect of…

Nuclear Theory · Physics 2015-06-26 R. Lisboa , M. Malheiro , P. Alberto

Investigation of observables from nuclear multifragmentation reactions depending on isospin led to the development of a hybrid model. The mass and charge distribution as well as isotopic distribution was studied using this model for…

Nuclear Theory · Physics 2020-09-09 S. Mallik , G. Chaudhuri

The isospin properties of primary and secondary fragments produced in multifragmentation of Fe + Ni and Fe + Fe systems with respect to Ni + Ni system are analyzed within the statistical multifragmentation model framework. The reduced…

Nuclear Experiment · Physics 2007-05-23 D. V. Shetty , A. S. Botvina , S. J. Yennello , A. Keksis , E. Martin , G. A. Souliotis

The density dependence of the nuclear symmetry energy is inspected using the Statistical Multifragmentation Model with Skyrme effective interactions. The model consistently considers the expansion of the fragments' volumes at finite…

Nuclear Theory · Physics 2009-10-29 S. R. Souza , M. B. Tsang , B. V. Carlson , R. Donangelo , W. G. Lynch , A. W. Steiner

Based on a general approach to binary systems we show that in the low density region asymmetric nuclear matter (ANM) is unstable only against isoscalarlike fluctuations. The physical meaning of the thermodynamical chemical and mechanical…

Nuclear Theory · Physics 2017-08-23 V. Baran , M. Colonna , M. Di Toro , V. Greco

We investigate isospin breaking in low-energy pion-nucleon scattering in the framework of chiral perturbation theory. This work extends the systematic analysis of [1] to the energy range above threshold. Various relations, which identically…

High Energy Physics - Phenomenology · Physics 2009-10-31 Nadia Fettes , Ulf-G. Meißner

The observed isospin-symmetry breaking in light nuclei are caused not only by the Coulomb interaction but by the isovector one and two body plus isotensor two body nuclear interactions as well. Spectral distribution theory which treats…

Nuclear Theory · Physics 2015-07-07 Kamales Kar , Sukhendusekhar Sarkar

We discuss fragmentation mechanisms and isospin transport occurring in central collisions between neutron rich systems at Fermi energies. In particular, isospin effects are analyzed looking at the correlations between fragment isotopic…

Nuclear Theory · Physics 2008-11-26 M. Colonna , J. Rizzo , Ph. Chomaz , M. Di Toro