Formation and decay of toroidal and bubble nuclei and the nuclear equation of state.
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Multifragmentation, following the formation of toroidal and bubble nuclei, is observed with an improved Boltzmann-Uehling-Uhlenbeck model for central Mo92+92Mo collisions. With a stiff equation of state, simultaneous explosion into several nearly equal fragments in a ringlike manner occurs due to the formation of metastable toroidal nuclei. In contrast, with a soft equation of state, simultaneous explosion into several nearly equal fragments in a volumelike manner occurs due to the formation of metastable bubble nuclei. Experimental signatures for the formation of these exotic shapes are discussed. 1993 The American Physical Society.
author list (cited authors)
Xu, H. M., Natowitz, J. B., Gagliardi, C. A., Tribble, R. E., Wong, C. Y., & Lynch, W. G.
complete list of authors
Xu, HM||Natowitz, JB||Gagliardi, CA||Tribble, RE||Wong, CY||Lynch, WG