Dissipation and the population of compound nuclei

Conference · Wed Jan 01 04:00:00 UTC 1992

OSTI ID:5437943

Thoennessen, M ^[1]; Beene, J R ^[2]

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1. Michigan State Univ., East Lansing, MI (United States)
2. Oak Ridge National Lab., TN (United States)

The importance of nuclear dissipative efforts on the formation of compound nuclei is studied with the {gamma}-ray decay of the giant dipole resonance (GDR) built on highly excited states. The compound nuclei {sup 164}Yb, {sup 160}Er, and {sup 110}Sn were produced with very mass-asymmetric and with more mass-symmetric target/projectile combinations. The large deviation from statistical model prediction observed in the {gamma}-ray spectra from the more symmetrically formed {sup 160}Er and {sup 164}Yb can be qualitatively explained within the particle exchange model.

• Research Organization: Oak Ridge National Lab., TN (United States)
• Sponsoring Organization: DOE; NSF; USDOE, Washington, DC (United States); National Science Foundation, Washington, DC (United States)
• DOE Contract Number: AC05-84OR21400
• OSTI ID: 5437943
• Report Number(s): CONF-920113-2; ON: DE92011681; CNN: PHY-89-13815
• Country of Publication: United States
• Language: English

Related Subjects

663220* -- Electromagnetic Transitions-- (1992-)
663560 -- Nuclear Mass Ranges-- A=90-149-- (1992-)
663570 -- Nuclear Mass Ranges-- A=150-189-- (1992-)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BETA DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
COMPOUND NUCLEI
DAYS LIVING RADIOISOTOPES
DECAY
ELECTRON CAPTURE RADIOISOTOPES
ENERGY LEVELS
ERBIUM 160
ERBIUM ISOTOPES
EVEN-EVEN NUCLEI
EXCITED STATES
GAMMA SPECTRA
GIANT RESONANCE
HOURS LIVING RADIOISOTOPES
INTERMEDIATE MASS NUCLEI
INTERNAL CONVERSION RADIOISOTOPES
ISOTOPES
NUCLEI
PARTICLE DECAY
RADIATIVE DECAY
RADIOISOTOPES
RARE EARTH ISOTOPES
RARE EARTH NUCLEI
RESONANCE
SPECTRA
TIN 110
TIN ISOTOPES
YTTERBIUM 164
YTTERBIUM ISOTOPES