Published January 2006 | Version v1
Journal article Metadata-only

Cascade γ decay in the Λ7Li hypernucleus

Creators

  • 1. Department of Physics, Tohoku University, Sendai 980-8578 (Japan)
  • 2. Department of Physics, Osaka University, Toyonaka 560-0043 (Japan)
  • 3. Department of Physics, Kyoto University, Kyoto 606-8502 (Japan)
  • 4. Brookhaven National Laboratory, Upton, New York 11973 (United States)

Description

In a γ-ray spectroscopy experiment with the (K-,π-) reaction on a 10B target, we have observed the 7/2+→5/2+ spin-flip M1 transition in Λ7Li via γ-γ coincidence with the 5/2+→1/2+E2 transition. This is the first successful γ-γ coincidence measurement for hypernuclei. The measured M1 γ-ray energy is 470.8±1.9(stat)±0.6(syst) keV. The spacing of the 7/2+,5/2+ doublet is consistently explained using the strengths of the spin-spin, Λ-spin-orbit, and tensor interactions obtained from previous γ-spectroscopy experiments

Additional details

Identifiers

DOI
10.1103/PhysRevC.73.012501;

Publishing Information

Journal Title
Physical Review. C, Nuclear Physics
Journal Volume
73
Journal Issue
1
Journal Page Range
p. 012501-012501.5
ISSN
0556-2813
CODEN
PRVCAN

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
37076602
Subject category
S73: NUCLEAR PHYSICS AND RADIATION PHYSICS; S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Descriptors DEI
BORON 10 TARGET; E2-TRANSITIONS; GAMMA DECAY; GAMMA RADIATION; GAMMA SPECTRA; GAMMA SPECTROSCOPY; HIGH SPIN STATES; HYPERNUCLEI; KAON REACTIONS; KAONS MINUS; KEV RANGE; L-S COUPLING; M1-TRANSITIONS; NUCLEAR CASCADES; PIONS MINUS; SPIN; SPIN FLIP; TENSORS
Descriptors DEC
ANGULAR MOMENTUM; BOSONS; CHARGED-PARTICLE REACTIONS; COUPLING; DECAY; ELECTROMAGNETIC RADIATION; ELEMENTARY PARTICLES; ENERGY LEVELS; ENERGY RANGE; ENERGY-LEVEL TRANSITIONS; HADRON REACTIONS; HADRONS; INTERMEDIATE COUPLING; IONIZING RADIATIONS; KAONS; MESON REACTIONS; MESONS; MULTIPOLE TRANSITIONS; NUCLEAR DECAY; NUCLEAR FRAGMENTS; NUCLEAR REACTIONS; NUCLEI; PARTICLE PROPERTIES; PIONS; PSEUDOSCALAR MESONS; RADIATIONS; SPECTRA; SPECTROSCOPY; STRANGE MESONS; STRANGE PARTICLES; TARGETS

Optional Information

Notes
(c) 2006 The American Physical Society
Collaborations
E930('01) Collaboration