Inclusive breakup of Borromean nuclei

11th International Conference on Clustering Aspects of Nuclear Structure and Dynamics

Hussein, M.S.^1,2,3 ; Carlson, B.V.^1 ; Frederico, T.^1

Instituto Tecnológico de Aeronáutica, DCTA, Sao José dos Campos, SP

12.228-900, Brazil^1

Instituto de Estudos Avançados, Universidade de São Paulo, C. P. 72012, São Paulo-SP

05508-970, Brazil^2

Instituto de Física, Universidade de São Paulo, C. P. 66318, São Paulo, -SP

05314-970, Brazil^3

关键词: Breakup cross sections;    Matrix elements;    Non-trivial;    Three body;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/863/1/012035/pdf
DOI  :  10.1088/1742-6596/863/1/012035

来源: IOP

【 摘 要 】

We derive the inclusive breakup cross section of a three-fragment projectile nuclei, a = b + x1+x2, in the spectator model. The resulting four-body cross section for observing b, is composed of the elastic breakup cross section which contains information about the correlation between the two participant fragments, and the inclusive non-elastic breakup cross section. This latter cross section is found to be a non-trivial four-body generalization of the Austern formula [1], which is proportional to a matrix element of the form, . The new feature here is the three-body absorption, represented by the imaginary potential, W3b. We analyze this type of absorption and supply ideas of how to calculate its contribution.