dorsal/arxiv
View SchemaAntisymmetrized molecular dynamics with quantum branching processes for collisions of heavy nuclei
| Authors | Akira Ono |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9809029 |
| URL | https://arxiv.org/abs/nucl-th/9809029 |
| DOI | 10.1103/PhysRevC.59.853 |
| Journal | Phys.Rev. C59 (1999) 853-864 |
Abstract
Antisymmetrized molecular dynamics (AMD) with quantum branching processes is reformulated so that it can be applicable to the collisions of heavy nuclei such as Au + Au multifragmentation reactions. The quantum branching process due to the wave packet diffusion effect is treated as a random term in a Langevin-type equation of motion, whose numerical treatment is much easier than the method of the previous papers. Furthermore a new approximation formula, called the triple-loop approximation, is introduced in order to evaluate the Hamiltonian in the equation of motion with much less computation time than the exact calculation. A calculation is performed for the Au + Au central collisions at 150 MeV/nucleon. The result shows that AMD almost reproduces the copious fragment formation in this reaction.
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"abstract": "Antisymmetrized molecular dynamics (AMD) with quantum branching processes is\nreformulated so that it can be applicable to the collisions of heavy nuclei\nsuch as Au + Au multifragmentation reactions. The quantum branching process due\nto the wave packet diffusion effect is treated as a random term in a\nLangevin-type equation of motion, whose numerical treatment is much easier than\nthe method of the previous papers. Furthermore a new approximation formula,\ncalled the triple-loop approximation, is introduced in order to evaluate the\nHamiltonian in the equation of motion with much less computation time than the\nexact calculation. A calculation is performed for the Au + Au central\ncollisions at 150 MeV/nucleon. The result shows that AMD almost reproduces the\ncopious fragment formation in this reaction.",
"arxiv_id": "nucl-th/9809029",
"authors": [
"Akira Ono"
],
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"nucl-th"
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"doi": "10.1103/PhysRevC.59.853",
"journal_ref": "Phys.Rev. C59 (1999) 853-864",
"title": "Antisymmetrized molecular dynamics with quantum branching processes for collisions of heavy nuclei",
"url": "https://arxiv.org/abs/nucl-th/9809029"
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