Statistical description of nuclear break-up

Abstract

We present an overview of concepts and results obtained with statistical models in study of nuclear multifragmentation. Conceptual differences between statistical and dynamical approaches, and selection of experimental observables for identification of these processes, are outlined. New and perspective developments, like inclusion of in-medium modifications of the properties of hot primary fragments, are discussed. We list important applications of statistical multifragmentation in other fields of research. : 25.70.Pq , 21.65.+f PACS

Isospin dependent thermodynamics of fragmentation

“…This limitation can in principle be avoided by including effective in medium corrections in the fragments energy functional [36]. In this case, however, the fragment energy becomes a free parameter of the theory.…”

Asymmetry of velocity distributions in peripheral reactions with heavy ions at Fermi energies

“…Данный подход даёт возможность оценить выходы ядер вблизи линии стабильности для ядер пучка тяжелее, чем Ar, и не учитывает возможности существования реакций подхвата. Также используется статистический подход [12], основанный на мо-дели фрагментации. К моделям учитывающим диссипативный характер реакций при энергиях Ферми следует отнести модель стохастического переноса [13].…”

Common Approaches in Description of Ordinary Liquids

“…The appropriate way to study this phenomenon is the experiment with proton-nucleus and nucleus-nucleus collisions. When such a collision is observed at a high enough energy (higher than the threshold value E th ∼ 2-4 MeV/nucleon [22]), there is a high probability of the production of intermediate-mass fragments [23,24]. The nature of the production of intermediatemass fragments in such experiments is of great interest for the consequent understanding of the NM properties and for the progress in the studies of nuclear EOS [24][25][26][27][28][29].…”