Published March 2007 | Version v1
Journal article Metadata-only

Neutron quasi-molecular states in binuclear systems and their influence on fusion of heavy atomic nuclei

Creators

  • 1. Ob''edinennyj Inst. Yadernykh Issledovanij, Dubna (Joint Institute for Nuclear Research (JINR))
  • 2. Cheboksarskij Filial Moskovskogo Gosudarstvennogo Otkrytogo Univ., Cheboksary (Russian Federation)

Description

The evolution of the wave functions of valence neutrons upon collisions of heavy nuclei having energies near the Coulomb barrier has been investigated by numerical solution of the multidimensional time- dependent Schroedinger equation. It is shown that even before overcoming the barrier by nuclei the wave functions of valence neutrons are extended to their volumes with occupation of quasi-molecular states. This process results in a significant effect of neutron transfers on nuclear fusion and, in particular, in a significant increase in the probability of subbarrier fusion for certain combinations of nuclei

Abstract (Russian)

С помощью численного решения многомерного нестационарного уравнения Шредингера исследована эволюция волновых функций внешних нейтронов при столкновении тяжелых ядер с энергиями вблизи кулоновского барьера. Показано, что еще до преодоления ядрами барьера волновые функции валентных нейтронов распространяются на их объемы с заселением квазимолекулярных состояний. Это приводит к значительному влиянию нейтронных передач на процесс слияния ядер и, в частности, к существенному увеличению вероятности подбарьерного слияния для определенных комбинаций ядер

Additional details

Additional titles

Original title (Russian)
Квазимолекулярные состояния нейтронов в двуядерных системах и их влияние на слияние тяжелых атомных ядер

Publishing Information

Journal Title
Izvestiya Akademii Nauk. Rossijskaya Akademiya Nauk. Seriya Fizicheskaya
Journal Volume
71
Journal Issue
3
Journal Page Range
p. 401-407
ISSN
1026-3489
CODEN
IRAFEO

Conference

Title
LVI International conference on nuclear spectroscopy and nuclear structure NUCLEUS-2006
Original Conference Title
LVI Mezhdunarodnaya konferentsiya po problemam yadernoj spektroskopii i strukture atomnogo yadra YaDRO-2006
Dates
Sep 2006
Place
Sarov (Russian Federation)

INIS

Country of Publication
Russian Federation
Country of Input or Organization
Russian Federation
INIS RN
39003810
Subject category
S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
Resource subtype / Literary indicator
Conference, Numerical Data
Descriptors DEI
CALCIUM 40 REACTIONS; COULOMB FIELD; DIAGRAMS; ENERGY LEVELS; ENERGY-LEVEL DENSITY; HEAVY ION FUSION REACTIONS; NEUTRONS; NUCLEON-NUCLEON INTERACTIONS; PROBABILITY; QUASIBOUND STATE; SCHROEDINGER EQUATION; THEORETICAL DATA; WAVE FUNCTIONS; WOODS-SAXON POTENTIAL; ZIRCONIUM 96 TARGET
Descriptors DEC
BARYON-BARYON INTERACTIONS; BARYONS; DATA; DIFFERENTIAL EQUATIONS; ELECTRIC FIELDS; ELEMENTARY PARTICLES; EQUATIONS; FERMIONS; FUNCTIONS; HADRON-HADRON INTERACTIONS; HADRONS; HEAVY ION REACTIONS; INFORMATION; INTERACTIONS; NUCLEAR POTENTIAL; NUCLEAR REACTIONS; NUCLEONS; NUCLEOSYNTHESIS; NUMERICAL DATA; PARTIAL DIFFERENTIAL EQUATIONS; PARTICLE INTERACTIONS; POTENTIALS; SYNTHESIS; TARGETS; WAVE EQUATIONS

Optional Information

Notes
12 refs., 6 figs.