Airy minima in 4He + 28Si elastic and inelastic scattering

被引：3
|
作者：
Berezhnoy, Yu A. [1 ]
Molev, A. S. [1 ,2 ]
机构：
[1] Kharkov Natl Univ, UA-61022 Kharkov, Ukraine
[2] Inst Electrophys & Radiat Technol, UA-61002 Kharkov, Ukraine
来源：
MODERN PHYSICS LETTERS A | 2020年 / 35卷 / 19期
关键词：
He-4 + Si-28 system; S-matrix model; elastic and inelastic scattering; Airy minimum; nuclear rainbow; PARTICLE ELASTIC-SCATTERING; ALPHA-SCATTERING; NUCLEAR RAINBOW; O-16; STRENGTH; SI-28; MG-24; C-12;
D O I：
10.1142/S021773232050159X
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We present the results of the S-matrix description of the He-4 + Si-28 elastic and inelastic scattering differential cross-sections between 40 and 240 MeV with allocation of Airy minima of various orders. The first-order Airy minima have been unambiguously identified in the differential cross-sections for elastic scattering and inelastic scattering to the first 2(+) state of Si-28 at energies E = 40-166 MeV, and the second-order Airy minima - at E = 40-58 MeV. The angular positions of these minima obey an inverse dependence on energy. The intensities of nuclear refraction and absorption also obey the same energy dependence.
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页数：10
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