This title appears in the Scientific Report :
2019
Please use the identifier:
http://dx.doi.org/10.1103/PhysRevC.100.034609 in citations.
Please use the identifier: http://hdl.handle.net/2128/24217 in citations.
Deuteron- α scattering: Separable versus nonseparable Faddeev approach
Deuteron- α scattering: Separable versus nonseparable Faddeev approach
Background: Deuteron-induced reactions are widely used to probe nuclear structure and astrophysical information. Those (d,p) reactions may be viewed as three-body reactions and described with Faddeev techniques.Purpose: Faddeev-AGS equations in momentum space have a long tradition of utilizing separ...
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Personal Name(s): | Hlophe, L. (Corresponding author) |
---|---|
Lei, Jin / Elster, Ch. / Nogga, A. / Nunes, F. M. / Jurčiukonis, D. / Deltuva, A. | |
Contributing Institute: |
Theorie der Starken Wechselwirkung; IAS-4 Theorie der starken Wechselwirkung; IKP-3 |
Published in: | Physical Review C Physical review / C, 100 100 (2019 2019) 3 3, S. 034609 034609 |
Imprint: |
Woodbury, NY
Inst.
2019
2019-09-10 2019-09-01 |
DOI: |
10.1103/PhysRevC.100.034609 |
Document Type: |
Journal Article |
Research Program: |
Computational Science and Mathematical Methods |
Link: |
OpenAccess OpenAccess OpenAccess OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://hdl.handle.net/2128/24217 in citations.
Background: Deuteron-induced reactions are widely used to probe nuclear structure and astrophysical information. Those (d,p) reactions may be viewed as three-body reactions and described with Faddeev techniques.Purpose: Faddeev-AGS equations in momentum space have a long tradition of utilizing separable interactions in order to arrive at sets of coupled integral equations in one variable. However, it needs to be demonstrated that observables calculated based on separable interactions agree exactly with those based on nonseparable forces.Methods: Momentum space AGS equations are solved with separable and nonseparable forces as coupled integral equations.Results: Deuteron-α scattering is calculated via momentum space AGS equations using the CD-Bonn neutron-proton force and a Woods-Saxon type neutron(proton)-4He force, for which the Pauli-forbidden S-wave bound state is projected out. Elastic as well as breakup observables are calculated and compared to results in which the interactions in the two-body sub-systems are represented by separable interactions derived in the Ernst-Shakin-Thaler (EST) framework.Conclusions: We find that the calculations based on the separable representation of the interactions and the original interactions give results that are in excellent agreement. Specifically, integrated cross sections and angular distributions for elastic scattering agree within ≈1%, which is well below typical experimental errors. In addition, the fivefold differential cross sections corresponding to breakup of the deuteron agree extremely well. |