Published August 2003 | Version v1
Journal article Metadata-only

A study of γ decays and octupole bands in 21Ne and 21Na

Creators

  • 1. Hahn-Meitner-Inst., Berlin (Germany)
  • 2. Freie Univ. Berlin, Fachbereich Physik, Berlin (Germany)

Description

The reactions 16O(7Li, 2n) and 17O(7Li, np) populating 21Na and 21Ne have been studied at 27 MeV. The level scheme for 21Na and 21Ne have been extended to higher spin. The population of the bands with K = 3/2 and 1/2, forming parity doublets, are compared. Preferential E1 decay between bands of opposite parity is observed in agreement with the octupole scenario. The structure of these bands can be interpreted as consisting of an intrinsic asymmetric (4He + 16O) structure with octupole deformation

Abstract (Russian)

Исследуются реакции 16O(7Li, 2n) и 17O(7Li, np), определяющие заселенность 21Na и 21Ne при энергии Li 27 МэВ. Схемы уровней 21Na и 21Ne расширены до высших спинов. Сравнивается заселенность полос с K = 3/2 и 1/2, образующих дублеты четности. Распад Е1 между полосами с противоположной четностью является предположительным, что согласуется с октупольностью полос. Их структура может интерпретироваться в согласии с асимметричной структурой (4He + 16O), имеющей октупольную деформацию

Additional details

Publishing Information

Journal Title
Yadernaya Fizika
Journal Volume
66
Journal Issue
8
Journal Page Range
p. 1474-1479
ISSN
0044-0027
CODEN
IDFZA7

Conference

Title
7. International school-seminar on heavy-ion physics
Dates
27 May - 1 Jun 2002
Place
Dubna (Russian Federation)

INIS

Country of Publication
Russian Federation
Country of Input or Organization
Russian Federation
INIS RN
36084331
Subject category
S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
Resource subtype / Literary indicator
Conference
Descriptors DEI
BAND THEORY; E1-TRANSITIONS; ENERGY LEVELS; ENERGY SPECTRA; GAMMA DECAY; LITHIUM 7 REACTIONS; MEV RANGE 10-100; NEON 21; NEUTRONS; OCTUPOLES; OXYGEN 16 TARGET; PARITY; PROTONS; SODIUM 21
Descriptors DEC
BARYONS; BETA DECAY RADIOISOTOPES; BETA-PLUS DECAY RADIOISOTOPES; DECAY; ELEMENTARY PARTICLES; ENERGY RANGE; ENERGY-LEVEL TRANSITIONS; EVEN-ODD NUCLEI; FERMIONS; HADRONS; HEAVY ION REACTIONS; ISOTOPES; LIGHT NUCLEI; MEV RANGE; MULTIPOLE TRANSITIONS; MULTIPOLES; NEON ISOTOPES; NUCLEAR DECAY; NUCLEAR REACTIONS; NUCLEI; NUCLEONS; ODD-EVEN NUCLEI; PARTICLE PROPERTIES; RADIOISOTOPES; SECONDS LIVING RADIOISOTOPES; SODIUM ISOTOPES; SPECTRA; STABLE ISOTOPES; TARGETS

Optional Information

Notes
20 refs., 8 figs.