Published March 15, 2010 | Version v1
Journal article Metadata-only

Superdeformation in asymmetric N>Z nucleus 40Ar

Creators

  • 1. Center for Nuclear Study, University of Tokyo, Wako, Saitama 351-0198 (Japan)
  • 2. Department of Physics, Kyushu University, Hakozaki, Fukuoka 812-8581 (Japan)
  • 3. Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195 (Japan)
  • 4. Chiba Institute of Technology, Narashino, Chiba 275-0023 (Japan)
  • 5. Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), 1-1 Oho, Tsukuba, Ibaraki 305-0801 (Japan)
  • 6. Institute of Natural Sciences, Senshu University, Tokyo 101-8425 (Japan)

Description

A rotational band with five γ-ray transitions ranging from 2+ to 12+ states was identified in 40Ar. This band is linked through γ transitions from the excited 2+, 4+ and 6+ levels to the low-lying states; this determines the excitation energy and the spin-parity of the band. The deduced transition quadrupole moment of 1.45-0.31+0.49±0.15 eb indicates that the band has a superdeformed shape. The nature of the band is revealed by cranked Hartree-Fock-Bogoliubov calculations and a multiparticle-multihole configuration is assigned to the band.

Availability note (English)

Available from http://dx.doi.org/10.1016/j.physletb.2010.02.031

Additional details

Identifiers

DOI
10.1016/j.physletb.2010.02.031;
arXiv
arXiv:0910.5079v1;
PII
S0370-2693(10)00205-4;

Publishing Information

Journal Title
Physics Letters. Section B
Journal Volume
686
Journal Issue
1
Journal Page Range
p. 18-22
ISSN
0370-2693
CODEN
PYLBAJ

INIS

Country of Publication
Netherlands
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
41090115
Subject category
S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
Descriptors DEI
ARGON 40; ASYMMETRY; EXCITATION; GAMMA RADIATION; HARTREE-FOCK-BOGOLYUBOV THEORY; MAGNESIUM 26 REACTIONS; NUCLEAR REACTIONS; OXYGEN 18 TARGET; PARITY; QUADRUPOLE MOMENTS; ROTATIONAL STATES; SPIN; SUPERDEFORMED NUCLEI
Descriptors DEC
ANGULAR MOMENTUM; ARGON ISOTOPES; DEFORMED NUCLEI; ELECTROMAGNETIC RADIATION; ENERGY LEVELS; ENERGY-LEVEL TRANSITIONS; EVEN-EVEN NUCLEI; EXCITED STATES; HEAVY ION REACTIONS; IONIZING RADIATIONS; ISOTOPES; LIGHT NUCLEI; NUCLEAR REACTIONS; NUCLEI; PARTICLE PROPERTIES; RADIATIONS; STABLE ISOTOPES; TARGETS

Optional Information

Copyright
Copyright (c) 2010 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.