Survival of orbiting in {sup 20}Ne (7-10 MeV/nucleon) + {sup 12}C reactions
- Variable Energy Cyclotron Centre, Sector 1, Block AF, Bidhan Nagar, Kolkata 700 064 (India)
The inclusive energy distributions of fragments with Z {>=} 3 emitted from the bombardment of {sup 12}C by {sup 20}Ne beams with incident energies between 145 and 200 MeV have been measured in the angular range {theta}{sub lab}{approx}10 deg. -50 deg. Damped fragment yields in all cases have been found to be characteristic of emission from fully energy equilibrated composites; for B and C fragments, average Q values, <Q>, were independent of the center-of-mass emission angle ({theta}{sub c.m.}), and the angular distributions followed a {approx}1/sin{theta}{sub c.m.}-like variation, signifying long lifetimes of the emitting dinuclear systems. Estimates of total yields of these fragments have been found to be much larger than those predicted by the standard statistical model. This may be indicative of the survival of an orbiting-like process in the {sup 12}C+{sup 20}Ne system at these energies.
- OSTI ID:
- 20698877
- Journal Information:
- Physical Review. C, Nuclear Physics, Vol. 72, Issue 2; Other Information: DOI: 10.1103/PhysRevC.72.021601; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2813
- Country of Publication:
- United States
- Language:
- English
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