Analysis of alpha-cluster transfer in 16O+12C and 12C+16O at energies near Coulomb barrier

被引：25

作者：

Hamada, Sh ^{[1
]}

Burtebayev, N. ^{[2
]}

Gridnev, K. A. ^{[3
]}

Amangeldi, N. ^{[2
]}

机构：

[1] Kazakh Natl Univ, Alma Ata, Kazakhstan

[2] Eurasia Natl Univ, Astana, Kazakhstan

[3] St Petersburg Univ, St Petersburg, Russia

来源：

NUCLEAR PHYSICS A | 2011年 / 859卷 / 01期

关键词：

NUCLEAR REACTIONS C-12(O-16; C-12); E=1.25; 1.5; 1.75; MeV/nucleon; C-16(O-12; C-16); E=1.75; measured charged-particle spectra; sigma(theta) using a Si(Li) detector; Comparison with SPI-GENOA optical model calculations and DWUCK5 code DWBA method calculations; NUCLEI; SCATTERING; MODEL;

D O I：

10.1016/j.nuclphysa.2011.04.006

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

The aim of this work is to track the phenomenon of a-cluster transfer mechanism allow energies 1.25, 1.5 and 1.75 MeV/n, close to the Coulomb barrier energy for C-12(O-16, C-12)O-16 and O-16(C-12, O-16)C-12 nuclear systems. The measurements of the angular distribution show a significant increase in the differential cross section at large angles due to alpha-transfer mechanism. The optical model code SPI-GENOA could be used effectively for fitting the experimental data with the theoretical predictions nearly up to angle 90 degrees, where the differential cross section decreases steadily with increasing the scattering angle. For the second hemisphere, at angles greater than 100 degrees, there is a large increase in cross section due to the contribution of alpha-transfer mechanism, and the Distorted Wave Born Approximation (DWBA) method could be used effectively for fitting the experimental data with the theoretical predictions at this region using (DWUCK5) code. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：29 / 38

页数：10

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