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ZHANG Yingxun, LI Zhuxia, ZHOU Chengshuang, TSANG M.B.. Effect of Isospin Dependent Cluster Recognition on Observables in Heavy Ion Collisions[J]. Nuclear Physics Review, 2013, 30(3): 324-330. DOI: 10.11804/NuclPhysRev.30.03.324
Citation: ZHANG Yingxun, LI Zhuxia, ZHOU Chengshuang, TSANG M.B.. Effect of Isospin Dependent Cluster Recognition on Observables in Heavy Ion Collisions[J]. Nuclear Physics Review, 2013, 30(3): 324-330. DOI: 10.11804/NuclPhysRev.30.03.324

Effect of Isospin Dependent Cluster Recognition on Observables in Heavy Ion Collisions

  • We introduce isospin dependence in the cluster recognition algorithms used in the Quantum Molecular Dynamics model to describe fragment formation in heavy ion collisions. This change reduces the yields of emitted nucleons and enhances the yields of fragments, especially for heavier fragments. The enhancement of neutron-rich lighter fragments mainly occurs at mid-rapidity. Consequently, isospin dependent observables, such as isotope distributions, yield ratios of n/p,t/3He, Rmid yield and isoscaling parameters are affected. We also investigate how equilibration in heavy ion collisions is affected by this change.
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