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Stability of the fragments and thermalization at the peak centre-of-mass energy

Abstract : We simulated the central reactions of nearly symmetric and asymmetric systems, for energies at which maximum production of intermediate mass fragments (IMFs) occurred (E(c.m.)(peak)). This study was carried out using hard EOS along with Cugnon cross-section employing MSTB method for clusterization. We studied the various properties of fragments. The stability of fragments was checked through persistence coefficient and gain term. The information about the thermalization and stopping in heavy-ion collisions was obtained via relative momentum, anisotropy ratio and rapidity distribution. We found that for a complete stopping of incoming nuclei very heavy systems are required. The mass dependence of various quantities (such as average and maximum central density, collision dynamics as well as the time zone for hot and dense nuclear matter) was also presented. In all cases (i.e., average and maximum central density, collision dynamics as well as the time zone for hot and dense nuclear matter) a power-law dependence was obtained.
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http://hal.in2p3.fr/in2p3-00624242
Contributor : Dominique Girod <>
Submitted on : Friday, September 16, 2011 - 10:51:52 AM
Last modification on : Friday, June 22, 2018 - 9:31:06 AM

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  • HAL Id : in2p3-00624242, version 1

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A.D. Sood, S. Kaur. Stability of the fragments and thermalization at the peak centre-of-mass energy. Pramana - Journal of Physics, Indian Academy of Sciences/Springer, 2011, 76, pp.909-919. ⟨in2p3-00624242⟩

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