2007/02/28 by W. D. Tian, Y. G. Ma, Y. G. +9 · 1 citation
Mathematics · Physics and Astronomy · #Asymmetry #Atomic and Molecular Physics #Atomic physics #Energy (signal processing) #Excitation #Geometry #Isospin #Nuclear physics #Nuclear physics research studies #Particle physics #Physics #Quantum Chromodynamics and Particle Interactions #Quantum mechanics #Symmetry (geometry) #math-ph #math.MP #nucl-ex #nucl-th
paper · pdf · doi:10.1103/physrevc.76.024607
published as Phys.Rev.C76:024607,2007 · 8 pages, 8 figures; A new substantially modified version which has been accepted by the Physical Review C
arxiv created 2007/07/27 · openalex publication_date 2007/08/23 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Isospin effect of the statistical emission fragments from the equilibrated source is investigated in the frame of statistical binary decay implemented into the GEMINI code, isoscaling behavior is observed and the dependences of isoscaling parameters \ensuremathα and \ensuremathβ on emission fragment size, source size, source isospin asymmetry and excitation energies are studied. Results show that \ensuremathα and \ensuremathβ neither depends on light fragment size nor on source size. A good linear dependence of \ensuremathα and \ensuremathβ on the inverse of temperature T is manifested and the relationship of \ensuremathα=4Csym[(Zs/As)12\ensuremath-(Zs/As)22]/T and \ensuremathβ=4Csym[(Ns/As)12\ensuremath-(Ns/As)22]/T from different isospin asymmetry sources is satisfied. The symmetry energy coefficient Csym extracted from simulation results is \ensuremath∼ 23 MeV which includes both the volume and surface term contributions, of which the surface effect seems to play a significant role in the symmetry energy.