Coulomb excitation of sup 8 Li

Journal Article · Mon May 13 04:00:00 EDT 1991 · Physical Review Letters; (USA)

DOI:https://doi.org/10.1103/PhysRevLett.66.2452· OSTI ID:5463876

Brown, J A; Becchetti, F D; Jaenecke, J W; Ashktorab, K; Roberts, D A ^[1]; Kolata, J J; Smith, R J; Lamkin, K ^[2]; Warner, R E ^[3]

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1. Department of Physics, University of Michigan, Ann Arbor, Michigan 48109-1090 (USA)
2. Department of Physics, University of Notre Dame, Notre Dame, Indiana 46556 (USA)
3. Department of Physics, Oberlin College, Oberlin, Ohio 44074 (USA)

We have observed the excitation of the first excited state ({ital E}{sub {ital x}}=0.98 MeV, {ital J}{sup {pi}}=1{sup +}) of the radioactive, neutron-rich nucleus {sup 8}Li ({ital J}{sub g.s.}{sup {pi}}=2{sup +}) from its inelastic scattering on {sup nat}Ni at {ital E}({sup 8}Li){congruent}14.6 MeV. Cross sections measured out to large {theta}{sub c.m.} agree well with Coulomb-excitation probabilities and have been used to deduce an {ital E}2{up arrow} transition rate for the 2{sub g.s.}{sup +}{r arrow}1{sup +} excitation in {sup 8}Li{sup *}. The latter ({ital B}({ital E}2{up arrow})=55{plus minus}15 {ital e}{sup 2} fm{sup 4}) is large relative to nearby stable nuclei, but comparable to the neighboring neutron-rich nucleus {sup 10}Be. The relevance of the data to predicted neutron-halo'' giant dipole resonances in unstable nuclear projectiles is considered.

• OSTI ID: 5463876
• Journal Information: Physical Review Letters; (USA), Journal Name: Physical Review Letters; (USA) Vol. 66:19; ISSN PRLTA; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

651320* -- Nuclear Properties & Reactions
A=6-19
Experimental
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALKALI METAL ISOTOPES
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CHARGED-PARTICLE REACTIONS
COULOMB EXCITATION
CROSS SECTIONS
DATA
E2-TRANSITIONS
ENERGY LEVELS
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
EXCITATION
EXCITED STATES
EXPERIMENTAL DATA
GIANT RESONANCE
HEAVY ION REACTIONS
INELASTIC SCATTERING
INFORMATION
ISOTOPES
LIGHT NUCLEI
LITHIUM 8
LITHIUM 8 REACTIONS
LITHIUM ISOTOPES
MEV RANGE
MEV RANGE 10-100
MILLISEC LIVING RADIOISOTOPES
MULTIPOLE TRANSITIONS
NICKEL ISOTOPES
NUCLEAR REACTIONS
NUCLEI
NUMERICAL DATA
ODD-ODD NUCLEI
RADIOISOTOPES
RESONANCE
SCATTERING
SECONDS LIVING RADIOISOTOPES