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

Conference · Sat May 01 04:00:00 EDT 1993

OSTI ID:10155265

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

---

1. Texas A and M Univ., College Station, TX (United States). Cyclotron Inst.
2. Oak Ridge National Lab., TN (United States)
3. Michigan State Univ., East Lansing, MI (United States). Cyclotron Lab.

Multifragmentation, following the formation of toroidal and bubble nuclei, is observed with an improved Boltzmann-Uehling-Uhlenbeck (BUU) model for central {sup 92}Mo {plus} {sup 92}Mo collisions. Guided by our BUU model, we propose two signatures: (1) because of the geometries of bubbles and toroids and because of the cold breakup at low temperatures, we predict enhanced cross sections for fragments with nearly-equal masses at small center-of-mass energies. (2) the coplanarity of these nearly-equal fragments could carry important information concerning the geometry of the sources. This in turn, could provide information about the stiffness of the equation of state.

• Research Organization: Oak Ridge National Lab., TN (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States); National Science Foundation, Washington, DC (United States); Welch (Robert A.) Foundation, Houston, TX (United States)
• DOE Contract Number: AC05-84OR21400; FG05-86ER40256
• OSTI ID: 10155265
• Report Number(s): CONF-930197--3; ON: DE93011848; CNN: Grant PHY-89-13815
• Country of Publication: United States
• Language: English

Related Subjects

663110
663450
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BOLTZMANN-VLASOV EQUATION
CROSS SECTIONS
EQUATIONS OF STATE
GENERAL AND AVERAGE PROPERTIES OF NUCLEI AND NUCLEAR ENERGY LEVELS
HEAVY-ION-INDUCED REACTIONS AND SCATTERING
MOLYBDENUM 92 REACTIONS
MOLYBDENUM 92 TARGET
NUCLEAR DECAY
NUCLEAR FRAGMENTATION
NUCLEI