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Deltuva, A.

doi:10.1103/physrevc.79.054603

Cited by 69 publications

(152 citation statements)

References 40 publications

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“…We concluded that the transfer cross sections are not sensitive to the details of this interaction but the consistency between the V np used to obtain the deuteron wavefunction and the interaction in the transfer operator (Eq.6). This same conclusion was found in previous works [19].…”

Section: Resultssupporting

confidence: 93%

Adiabatic approximation versus exact Faddeev method for (d,p) and (p,d) reactions

Nunes

Deltuva

2011

Phys. Rev. C

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The finite range adiabatic wave approximation provides a practical method to analyze (d,p) ≈ 5% for a range of beam energies (E d ≈ 20 − 40 MeV) but differences increase significantly for very low energies and for the highest energies. Our tests show that ADWA agrees best with Faddeev when the angular momentum transfer is small ∆l = 0 and when the neutron-nucleus system is loosely bound.

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Section: Resultssupporting

confidence: 93%

Adiabatic approximation versus exact Faddeev method for (d,p) and (p,d) reactions

Nunes

Deltuva

2011

Phys. Rev. C

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“…Within the adiabatic approaches, for the neutron in the initial channel we use an effective real binding potential fitted to the spectrum of nucleus A whereas in the final state the nucleon optical potential contains absorption which reproduces elastic scattering. In previous Faddeev A(p,d)B calculations V nB was real in all partial waves [25,41] while V pB was complex with parameters corresponding to the A + p state. In the present work, Faddeev calculations take V nB to be real in the partial wave with the n + B bound state but in all other partial waves V nB is taken to be complex as in the adiabatic approach in the final state.…”

Section: B Discussion On Uncertainties From Reaction Theorymentioning

confidence: 80%

“…Recently, nuclear reactions involving protons or deuterons have been studied solving the full Faddeevtype equations in momentum space [41]. These equations, usually referred to as AGS equations (for Alt, Grassberger and Sandhas) [42], are coupled integral equations for the transition operators…”

Section: A Faddeev Theorymentioning

confidence: 99%

Improved description ofAr34,36,46(p,d) transfer reactio

2011

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An improved description of single neutron stripping from 34,36,46 Ar beams at 33 MeV/nucleon by a hydrogen target is presented and the dependence on the neutron-proton asymmetry of the spectroscopic factors is further investigated. A finite range adiabatic model is used in the analysis and compared to previous zero range and local energy approximations. Full three-body Faddeev calculations are performed to estimate the error in the reaction theory. In addition, errors from the optical potentials are also evaluated. From our new spectroscopic factors extracted from transfer, it is possible to corroborate the neutron-proton asymmetry dependence reported from knockout measurements.

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“…One critical issue in this method is the well known Coulomb problem. Screening and renormalization techniques [10,11] have been developed to handle Coulomb, which opened the path for applications to deuteron induced nuclear reactions [12,13]. This method can now be used to benchmark existing nuclear reaction theories.…”

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confidence: 99%

Testing the continuum-discretized coupled channels method for deuteron-induced reactions

2012

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The Continuum Discretized Coupled Channels (CDCC) method is a well established theory for direct nuclear reactions which includes breakup to all orders. Alternatively, the 3-body problem can be solved exactly within the Faddeev formalism which explicitly includes breakup and transfer channels to all orders. With the aim to understand how CDCC compares with the exact 3-body Faddeev formulation, we study deuteron induced reactions on: i) 10 Be at E d = 21.4, 40.9 and 71 MeV; ii) 12 C at E d = 12 and 56 MeV; and iii) 48 Ca at E d = 56 MeV. We calculate elastic, transfer and breakup cross sections. Overall, the discrepancies found for elastic scattering are small with the exception of very backward angles. For transfer cross sections at low energy ∼10 MeV/u, CDCC is in good agreement with the Faddeev-type results and the discrepancy increases with beam energy. On the contrary, breakup observables obtained with CDCC are in good agreement with Faddeev-type results for all but the lower energies considered here.

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Deuteron stripping and pickup involving the halo nucleiBe11andC15

Cited by 69 publications

References 40 publications

Adiabatic approximation versus exact Faddeev method for (d,p) and (p,d) reactions

Adiabatic approximation versus exact Faddeev method for (d,p) and (p,d) reactions

Improved description ofAr34,36,46(p,d) transfer reactio

Testing the continuum-discretized coupled channels method for deuteron-induced reactions

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