First observation of excited states in {sup 12}Li

Journal Article · Mon Feb 15 04:00:00 EST 2010 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.81.021302· OSTI ID:21386580

Hall, C C; Lunderberg, E M; DeYoung, P A; Denby, D H ^[1]; Baumann, T; Bazin, D ^[2]; Blanchon, G ^[3]; Bonaccorso, A ^[4]; Brown, B A; Christian, G; Frank, N; Gade, A; Mosby, S; Peters, W A; Spyrou, A; Thoennessen, M ^[2]; Brown, J ^[5]; Finck, J ^[6]; Hinnefeld, J ^[7]; Hoffman, C R ^[8]

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1. Department of Physics, Hope College, Holland, Michigan 49423 (United States)
2. National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824 (United States)
3. CEA, DAM, DIF F-91297 Arpajon (France)
4. Instituto Nazionale di Fisisca Nucleare, Sez. di Pisa, Largo Pontecorvo 3, 56127 Pisa (Italy)
5. Department of Physics, Wabash College, Crawfordsville, Indiana 47933 (United States)
6. Department of Physics, Central Michigan University, Mt. Pleasant, Michigan 48859 (United States)
7. Department of Physics and Astronomy, Indiana University at South Bend, South Bend, Indiana 46634 (United States)
8. Department of Physics, Florida State University, Tallahassee, Florida 32306 (United States)

The neutron-unbound ground state and two excited states of {sup 12}Li were formed by the two-proton removal reaction from a 53.4-MeV/u {sup 14}B beam. The decay energy spectrum of {sup 12}Li was measured with the Modular Neutron Array (MoNA) and the Sweeper dipole superconducting magnet at the National Superconducting Cyclotron Laboratory. Two excited states at resonance energies of 250 +- 20 keV and 555 +- 20 keV were observed for the first time and the data are consistent with the previously reported s-wave ground state with a scattering length of a{sub s}=-13.7 fm.

• OSTI ID: 21386580
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 2 Vol. 81; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ACCELERATORS
BARYONS
BEAMS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BORON 14
BORON ISOTOPES
CYCLIC ACCELERATORS
CYCLOTRONS
DIMENSIONS
DIPOLES
ELECTRICAL EQUIPMENT
ELECTROMAGNETS
ELEMENTARY PARTICLES
ENERGY LEVELS
ENERGY RANGE
ENERGY SPECTRA
EQUIPMENT
EXCITED STATES
FERMIONS
GROUND STATES
HADRONS
ISOTOPES
KEV RANGE
KEV RANGE 100-1000
LENGTH
LIGHT NUCLEI
LITHIUM 12
LITHIUM ISOTOPES
MAGNETS
MEV RANGE
MEV RANGE 10-100
MILLISECONDS LIVING RADIOISOTOPES
MULTIPOLES
NEUTRONS
NUCLEI
NUCLEONS
ODD-ODD NUCLEI
PARTIAL WAVES
PROTONS
RADIOISOTOPES
RESONANCE
S WAVES
SCATTERING LENGTHS
SPECTRA
SUPERCONDUCTING CYCLOTRONS
SUPERCONDUCTING DEVICES
SUPERCONDUCTING MAGNETS