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Isoscaling from 1st-channel and all-channel decay by GEMINI

【摘要】:正The isoscaling property has been found in the analysis of multifragmentation experiments in nuclear physics.The isotopic composition of the nuclear reaction products contains important information of the role of the isospin in the reaction process.N/Z degree of freedom and its equilibration,as well as the isospin asymmetry dependent term of the nuclear equation of state(EOS),has motivated detailed measurements of the isotopic distributions of reaction products.The isoscaling parameter usually denoted byαdepends upon both the symmetry energy coefficient and the isotopic contents of the dissociating systems.Isoscaling has been obtained in different reactions and theoretical Calculations,but no agreement have been reached on whether the secondary decay effect can be bypassed or not.In this work,we discuss the all-channel sequential decay effect by the sequential decay model GEMINI and some observables,which is sensitive to the isospin degree of freedom,from the present study.

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