Published April 2002 | Version v1
Journal article Metadata-only

Alpha clustering in 4n nuclei from 4He to 40Ca

Creators

  • 1. Inst. of Nuclear Physics, National Center for Scientific Researh Demokritos, Aghia Paraskevi, Attiki (Greece)
  • 2. Univ. of Patras, School of Engineering, Patras (Greece)
  • 3. Greek Atomic Energy Commission, Aghia Paraskevi, Attiki (Greece)

Description

The α clustering in nuclei from 4He to 40Ca has been presented on a systematic footing which depicts the similarities from nucleus to nucleus. The isomorphic shell model has been employed. In the framework of the model an α-like particles is defined as four close-by nucleons (two neutrons and two protons) in relative angular momentum zero. Up to 40Ca nine such α-like particles and two deuterons are formed whose average positions are well specified in the model. The real novelty of this presentation is the fact that the axis of rotation and the number of rotating nucleons inside the same rotational band may change in such a way that the relevant moment of inertia increases monotonically in step forming for each step a new branch of the band

Abstract (Russian)

Альфа-кластеризация в ядрах от 4He до 40Ca представлена в форме, отражающей общие черты этих ядер. Используется изоморфная оболочечная модель, в рамках которой определяется α-подобная частица из четырех близких нуклонов (два нейтрона и два протона) с нулевым относительным угловым моментом. 40Ca образуется из девяти таких α-подобных частиц и двух дейтронов, средние положения которых точно определяются в этой модели. Реальная новизна такого представления состоит в том, что ось вращения и число вращающихся нуклонов внутри одной вращательной полосы может изменяться так, что соответствующий момент инерции увеличивается монотонно со ступенями в каждой ветви полосы

Additional details

Publishing Information

Journal Title
Yadernaya Fizika
Journal Volume
65
Journal Issue
4
Journal Page Range
p. 615-624
ISSN
0044-0027
CODEN
IDFZA7

Conference

Title
International conference. Clustering phenomena in nuclear physics (L Meeting on nuclear spectroscopy and nuclear structure)
Original Conference Title
Mezhdunarodnaya konferentsiya. Klastery v yadernoj fizike (L Soveshchanie po yadernoj spektroskopii i strukture atomnogo yadra)
Dates
14-17 Jun 2000
Place
St. Petersburg (Russian Federation)

INIS

Country of Publication
Russian Federation
Country of Input or Organization
Russian Federation
INIS RN
34046425
Subject category
S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
Resource subtype / Literary indicator
Conference
Descriptors DEI
ALPHA PARTICLES; ARGON 36; BAND THEORY; CALCIUM 40; CARBON 12; CLUSTER MODEL; DEUTERONS; HELIUM 4; MOMENT OF INERTIA; NEUTRONS; NUCLEAR DEFORMATION; OXYGEN 16; PROTONS; ROTATIONAL STATES; SHELL MODELS; SILICON 28
Descriptors DEC
ALKALINE EARTH ISOTOPES; ARGON ISOTOPES; BARYONS; CALCIUM ISOTOPES; CARBON ISOTOPES; CHARGED PARTICLES; DEFORMATION; ELEMENTARY PARTICLES; ENERGY LEVELS; EVEN-EVEN NUCLEI; EXCITED STATES; FERMIONS; HADRONS; HELIUM ISOTOPES; IONIZING RADIATIONS; ISOTOPES; LIGHT NUCLEI; MATHEMATICAL MODELS; NUCLEAR MODELS; NUCLEI; NUCLEONS; OXYGEN ISOTOPES; RADIATIONS; SILICON ISOTOPES; STABLE ISOTOPES

Optional Information

Notes
24 refs., 4 figs., 2 tabs.