TRIANGULAR EXCHANGE DIAGRAM WITHIN THE FULL OFF-SHELL COULOMB T-MATRIX IN DEUTERON INDUCED REACTIONS
Tập 127 Số 1A (2018), Nghiên cứu
Tập 127 Số 1A (2018)

TRIANGULAR EXCHANGE DIAGRAM WITHIN THE FULL OFF-SHELL COULOMB T-MATRIX IN DEUTERON INDUCED REACTIONS

Nghiên cứu
https://doi.org/10.26459/hueuni-jns.v127i1A.4749
Đã xuất bản 2018-05-09
T. V. Nhan Hao
Center for Theoretical and Computational Physics, University of Education, Hue University, 34 Le Loi Street, Hue City, Vietnam
N. Nhu Le
Center for Theoretical and Computational Physics, University of Education, Hue University, 34 Le Loi Street, Hue City, Vietnam
Pham Huong Thao
Center for Theoretical and Computational Physics, University of Education, Hue University, 34 Le Loi Street, Hue City, Vietnam

Tóm tắt

The amplitude of the triangular diagrams in the three-body models of deuteron induced reactions with charged particles contains the off-shell two-body T-matrix describing the intermediate-state Coulomb scattering of charged subsystems. Up to now the latter has usually been replaced by the Coulomb potential due to the computational reason. In this paper, we first investigate theoretically and numerically the validity of the mentioned Coulomb-Born approximation. The results show the important contribution of the higher order of the latter approximation for the (d,p) reactions off heavy target.

https://doi.org/10.26459/hueuni-jns.v127i1A.4749
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