arxiv: nucl-ex/0412052 · v1 · submitted 2004-12-22 · ⚛️ nucl-ex

A Ghoshal-like Test of Equilibration in Near-Fermi-Energy Heavy Ion Collisions

J. Wang , T. Keutgen , R. Wada , K. Hagel , Y. G. Ma , M. Murray , L. Qin , P. Smith

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J. B. Natowitz R. Alfaro J. Cibor A. Botvina M. Cinausero Y. El Masri D. Fabris A. Keksis S. Kowalski M. Lunardon A. Makeev N. Marie E. Martin Z. Majka A. Martinez-Davalos A. Menchaca-Rocha G. Nebbia S. Moretto G. Prete V. Rizzi A. Ruangma D. V. Shetty G. Souliotis P. Staszel M. Veselsky G. Viesti E. M. Winchester S. J. Yennello W. Zipper A. Ono

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keywords massnucleichannelcollisionsentranceequilibrationheavypatterns

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Calorimetric and coalescence techniques have been employed to probe equilibration for hot nuclei produced in heavy ion collisions of 35 to 55 MeV/u projectiles with medium mass targets. Entrance channel mass asymmetries and energies were selected in order that very hot composite nuclei of similar mass and excitation would remain after early stage pre-equilibrium particle emission. Inter-comparison of the properties and de-excitation patterns for these different systems provides evidence for the production of hot nuclei with decay patterns relatively independent of the specific entrance channel.

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A Ghoshal-like Test of Equilibration in Near-Fermi-Energy Heavy Ion Collisions

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