Published September 2007 | Version v1
Journal article Metadata-only

Observation of the 7 MeV excited spin-flip and non-spin-flip partners in 16ΛO by γ-ray spectroscopy

Creators

  • 1. Tohoku University, Department of Physics, Sendai (Japan)
  • 2. Osaka University, Department of Physics, Toyonaka (Japan)
  • 3. Kyoto University, Department of Physics, Kyoto (Japan)
  • 4. Brookhaven National Laboratory, Upton, NY (United States)
  • 5. GSI, Darmstadt (Germany)
  • 6. Carnegie Mellon University, Pittsburgh, PA (United States)
  • 7. University of Freiburg, Department of Physics, Freiburg (Germany)
  • 8. Institute of Particle and Nuclear Studies, KEK, Tsukuba (Japan)
  • 9. Gifu University, Department of Physics, Gifu (Japan)
  • 10. Hampton University, Department of Physics, VA (United States)
  • 11. RIKEN, Wako (Japan)

Description

We have observed three γ-ray transitions in Λ16 O from both 7 MeV excited spin-flip and non-spin-flip partners (2-,1-2) to the ground-state doublet (1-1,0-) via the 16O(K-,π-) reaction. The 7 MeV excitation energies of the spin-doublet members (2-,1-2) were determined to be 6784±4±4 keV and 6562±1±2 keV, respectively, and thus the spacing was obtained to be 222±4±5 keV. This is the first observation of the spin-flip state directly populated by the (K-,π-) reaction. Moreover, such directly populated spin-flip and non-spin-flip partners were resolved for the first time. (orig.)

Availability note (English)

Available from: http://dx.doi.org/10.1140/epja/i2007-10473-7

Additional details

Identifiers

DOI
10.1140/epja/i2007-10473-7;

Publishing Information

Journal Title
European Physical Journal. A
Journal Volume
33
Journal Issue
3
Journal Page Range
p. 247-250
ISSN
1434-6001

Conference

Title
9. International conference on hypernuclear and strange particle physics
Dates
10-14 Oct 2006
Place
Mainz (Germany)

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
38115989
Subject category
S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
Resource subtype / Literary indicator
Conference, Numerical Data
Descriptors DEI
DE-EXCITATION; ENERGY SPECTRA; EXCITED STATES; EXPERIMENTAL DATA; GAMMA SPECTRA; HYPERNUCLEI; KAON MINUS REACTIONS; LAMBDA PARTICLES; M1-TRANSITIONS; MEV RANGE 100-1000; OXYGEN 16; OXYGEN 16 TARGET; PIONS MINUS; RELATIVISTIC RANGE; SPIN FLIP; STRANGENESS-EXCHANGE REACTIONS
Descriptors DEC
BARYONS; BOSONS; CHARGED-PARTICLE REACTIONS; DATA; ELEMENTARY PARTICLES; ENERGY LEVELS; ENERGY RANGE; ENERGY-LEVEL TRANSITIONS; EVEN-EVEN NUCLEI; FERMIONS; HADRON REACTIONS; HADRONS; HYPERONS; INFORMATION; ISOTOPES; KAON REACTIONS; LAMBDA BARYONS; LIGHT NUCLEI; MESON REACTIONS; MESONS; MEV RANGE; MULTIPOLE TRANSITIONS; NUCLEAR FRAGMENTS; NUCLEAR REACTIONS; NUCLEI; NUMERICAL DATA; OXYGEN ISOTOPES; PIONS; PSEUDOSCALAR MESONS; SPECTRA; STABLE ISOTOPES; STRANGE PARTICLES; TARGETS