Model ingredients and peak mass production in heavy-ion collisions

Journal Article · Mon Nov 15 04:00:00 UTC 2010 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.82.054611· OSTI ID:21499188

Kaur, Sukhjit ^[1]; Sood, Aman D ^[2]

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1. House No. 465, Sector 1B, Nasrali, Mandi Gobindgarh, Punjab 147 301 (India)
2. SUBATECH, Laboratoire de Physique Subatomique et des Technologies Associees, Universite de Nantes, IN2P3/CNRS-EMN, 4 rue Alfred Kastler, F-44072 Nantes (France)

We simulate the central reactions of {sup 20}Ne+{sup 20}Ne, {sup 40}Ar+{sup 45}Sc, {sup 58}Ni+{sup 58}Ni, {sup 86}Kr+{sup 93}Nb, {sup 129}Xe+{sup 118}Sn, {sup 86}Kr+{sup 197}Au, and {sup 197}Au+{sup 197}Au at different incident energies for different equations of state, different binary cross sections, and different widths of Gaussians. A rise-and-fall behavior of the multiplicity of intermediate mass fragments (IMFs) is observed. The system size dependence of peak center-of-mass energy E{sub c.m.}{sup max} and peak IMF multiplicity <N{sub IMF}>{sup max} is also studied, where it is observed that E{sub c.m.}{sup max} follows a linear behavior and <N{sub IMF}>{sup max} shows a power-law dependence. A comparison between two clusterization methods, the minimum spanning tree and the minimum spanning tree method with binding energy check (MSTB), is also made. We find that the MSTB method reduces the <N{sub IMF}>{sup max}, especially in heavy systems. The power-law dependence is also observed for fragments of different sizes at E{sub c.m.}{sup max} and the power-law parameter {tau} is found to be close to unity in all cases except A{sup max}.

• OSTI ID: 21499188
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 5 Vol. 82; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

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DAYS LIVING RADIOISOTOPES
ENERGY
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LIGHT NUCLEI
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NANOSECONDS LIVING RADIOISOTOPES
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NICKEL 58
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SCANDIUM 45
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