Published September 2005 | Version v1
Journal article Metadata-only

Soft octupole vibrations on superdeformed states in nuclei around 40Ca suggested by Skyrme-HF and self-consistent RPA calculations

Creators

  • 1. Niigata University, Graduate School of Science and Technology, Niigata (Japan)
  • 2. University of Tsukuba, Institute of Physics, Tsukuba (Japan)
  • 3. RIKEN, Heavy Ion Nuclear Physics Laboratory, Wako, Saitama (Japan)
  • 4. Kansai Women's College, Department of Human Science, Osaka (Japan)
  • 5. Kyoto University, Department of Physics, Graduate School of Science, Kyoto (Japan)

Description

We present the results of fully self-consistent RPA calculation for low-frequency negative-parity modes built on superdeformed states in the 40Ca region. The RPA calculation was carried out using the mixed representation on the three-dimensional Cartesian mesh in a box. The SD shell structure provides a very favorable situation for octupole shape fluctuations, and we show that the coherent excitation of protons and neutrons play an important role in the emergence of strongly collective octupole vibrations built on the SD states in the N=Z nuclei, 32S, 36Ar, 40Ca and 44Ti. In particular, the calculation suggests that a low-frequency, strongly collective Kπ=1- octupole vibration appears on the SD state in 40Ca. (orig.)

Availability note (English)

Available from: http://dx.doi.org/10.1140/epjad/i2005-06-111-4

Additional details

Identifiers

DOI
10.1140/epjad/i2005-06-111-4;

Publishing Information

Journal Title
European Physical Journal. A
Journal Volume
25
Journal Issue
Suppl.1
Journal Page Range
p. 545-546
ISSN
1434-6001

Conference

Title
4. international conference on exotic nuclei and atomic masses
Acronym
ENAM '04
Dates
12-16 Sep 2004
Place
Pine Mountain, GA (United States)

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
36103726
Subject category
S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
Resource subtype / Literary indicator
Conference
Descriptors DEI
ARGON 36; CALCIUM 40; D STATES; FLUCTUATIONS; HARTREE-FOCK METHOD; NUCLEAR DEFORMATION; NUCLEAR STRUCTURE; RANDOM PHASE APPROXIMATION; S STATES; SELF-CONSISTENT FIELD; SKYRME POTENTIAL; SULFUR 32; SUPERDEFORMED NUCLEI; THREE-DIMENSIONAL CALCULATIONS; TITANIUM 44; VIBRATIONAL STATES
Descriptors DEC
ALKALINE EARTH ISOTOPES; ARGON ISOTOPES; BETA DECAY RADIOISOTOPES; CALCIUM ISOTOPES; CALCULATION METHODS; DEFORMATION; DEFORMED NUCLEI; ELECTRON CAPTURE RADIOISOTOPES; ENERGY LEVELS; EVEN-EVEN NUCLEI; EXCITED STATES; INTERMEDIATE MASS NUCLEI; ISOTOPES; LIGHT NUCLEI; NUCLEI; NUCLEON-NUCLEON POTENTIAL; POTENTIALS; RADIOISOTOPES; STABLE ISOTOPES; SULFUR ISOTOPES; TITANIUM ISOTOPES; VARIATIONS; YEARS LIVING RADIOISOTOPES