Shell and cluster states of {sub {Lambda}}{sup 21}Ne studied with antisymmetrized molecular dynamics

Journal Article · Sun May 15 00:00:00 EDT 2011 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.83.054304· OSTI ID:21502451

Isaka, Masahiro ^[1]; Kimura, Masaaki ^[2]; Dote, Akinobu ^[3]; Ohnishi, Akira ^[4]

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1. Department of Cosmosciences, Graduate School of Science, Hokkaido University, Sapporo 060-0810 (Japan)
2. Creative Research Institution (CRIS), Hokkaido University, Sapporo 001-0021 (Japan)
3. Institute of Particle and Nuclear Studies, KEK, Tsukuba, Ibaraki 305-0801 (Japan)
4. Yukawa Institute for Theoretical Physics, Kyoto University, Kyoto 606-8502 (Japan)

The low-lying states of {sub {Lambda}}{sup 21}Ne are studied with antisymmetrized molecular dynamics for hypernuclei. We have obtained ten rotational bands where the number of bands are increased compared to {sup 20}Ne by adding a {Lambda} hyperon. Among them, we focus on the K{sup {pi}=}0{sub 1}{sup +} x {Lambda}{sub s} and K{sup {pi}=}0{sub 1}{sup -} x {Lambda}{sub s} bands. The former has a shell-model-like structure that has {Lambda} in an s wave coupled to the ground band of {sup 20}Ne. The latter is a cluster state that has a {alpha}+{sub {Lambda}}{sup 17}O dicluster structure. The difference between their structures leads to the binding energy of {Lambda} particle B{sub {Lambda}} and reduction of the E2 transition probabilities B(E2).

• OSTI ID: 21502451
• Journal Information: Physical Review. C, Nuclear Physics, Vol. 83, Issue 5; Other Information: DOI: 10.1103/PhysRevC.83.054304; (c) 2011 American Institute of Physics; ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BINDING ENERGY
E2-TRANSITIONS
HYPERNUCLEI
HYPERONS
MOLECULAR DYNAMICS METHOD
NEON 20
NEON 21
PROBABILITY
ROTATIONAL STATES
S WAVES
SHELL MODELS
SIMULATION
BARYONS
CALCULATION METHODS
ELEMENTARY PARTICLES
ENERGY
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
EVEN-EVEN NUCLEI
EVEN-ODD NUCLEI
EXCITED STATES
FERMIONS
HADRONS
ISOTOPES
LIGHT NUCLEI
MATHEMATICAL MODELS
MULTIPOLE TRANSITIONS
NEON ISOTOPES
NUCLEAR FRAGMENTS
NUCLEAR MODELS
NUCLEI
PARTIAL WAVES
STABLE ISOTOPES
STRANGE PARTICLES