First observation of {alpha}-cluster states in the {sup 14}O + {sup 4}He interaction
Journal Article
·
· Physical Review. C, Nuclear Physics
- Cyclotron Institute, Texas A and M University, College Station, Texas 77843 (United States)
- Department of Physics, Florida State University, Tallahassee, Florida 32306 (United States)
- Department of Physics, University of Notre Dame, Indiana 46556 (United States)
We measured {sup 14}O+{sup 4}He excitation functions for elastic scattering which demonstrate, for the first time, a well developed {alpha}-cluster structure in the proton rich nucleus, {sup 18}Ne. We present the excitation energies and estimates of the spins for the dominant resonances using an R-matrix approach. A resonance at 9.2 MeV excitation energy in {sup 18}Ne is particularly interesting. The spin-parity of the state is found to be 3{sup -} and the {alpha} particle reduced width for the state appears to be comparable to the single particle limit. We have found indications for unusually large size of the observed {alpha}-cluster configuration.
- OSTI ID:
- 21191942
- Journal Information:
- Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 6 Vol. 77; ISSN 0556-2813; ISSN PRVCAN
- Country of Publication:
- United States
- Language:
- English
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