Effect of thousands of inelastic couplings on the elastic scattering channel

被引：4

作者：

Chamon, L. C. ^{[1
]}

Gasques, L. R. ^{[1
]}

Zamora, J. C. ^{[1
]}

机构：

[1] Univ Sao Paulo, Inst Fis, Rua Matao 1371, BR-05508090 Sao Paulo, SP, Brazil

来源：

JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS | 2020年 / 47卷 / 10期

基金：

巴西圣保罗研究基金会;

关键词：

nuclear reactions; coupled-channel formalism; elastic scattering; EXCITATION; MODEL;

D O I：

10.1088/1361-6471/aba424

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：

We describe a new method to solve coupled equations, that arises from the coupled-channel formalism applied to nuclear reactions involving the elastic and inelastic scattering processes. The new technique is faster and presents better numerical convergence than other usual methods. To illustrate the method, in the present paper we have analyzed data for the(4)He +Pb-208 system atE(lab.)= 120 and 139 MeV, including thousands of inelastic states with excitation energies up to 80 MeV. However, as a limitation, the method can be used only in the case of couplings connecting directly the inelastic channels to the elastic one, without couplings among the inelastic states.

引用

页数：23

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