Formation and decay of toroidal and bubble nuclei and the nuclear equation of state

Journal Article · Sun Aug 01 04:00:00 EDT 1993 · Physical Review, C (Nuclear Physics); (United States)

DOI:https://doi.org/10.1103/PhysRevC.48.933· OSTI ID:6024947

Xu, H M; Natowitz, J B; Gagliardi, C A; Tribble, R E ^[1]; Wong, C Y ^[2]; Lynch, W G ^[3]

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1. Cyclotron Institute, Texas A M University, College Station, Texas 77843 (United States)
2. Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831 (United States)
3. National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824 (United States)

Multifragmentation, following the formation of toroidal and bubble nuclei, is observed with an improved Boltzmann-Uehling-Uhlenbeck model for central [sup 92]Mo+[sup 92]Mo collisions. With a stiff equation of state, simultaneous explosion into several [ital nearly] [ital equal] [ital 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 [ital nearly] [ital equal] [ital 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.

• DOE Contract Number: FG05-86ER40256; AC05-84OR21400
• OSTI ID: 6024947
• Journal Information: Physical Review, C (Nuclear Physics); (United States), Journal Name: Physical Review, C (Nuclear Physics); (United States) Vol. 48:2; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

663300* -- Nuclear Reactions & Scattering
General-- (1992-)
663450 -- Heavy-Ion-Induced Reactions & Scattering-- (1992-)
663560 -- Nuclear Mass Ranges-- A=90-149-- (1992-)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
CHARGED-PARTICLE REACTIONS
COMPOUND NUCLEI
COUPLED CHANNEL THEORY
EQUATIONS
EQUATIONS OF STATE
FRAGMENTATION
HEAVY ION REACTIONS
MANY-BODY PROBLEM
MATTER
MOLYBDENUM 92 REACTIONS
MOLYBDENUM 92 TARGET
NUCLEAR MATTER
NUCLEAR REACTIONS
TARGETS