Role of theHe3optical model potential ambiguity in the distorted-wave Born approximation description of theNi58(He3, d)Cu59reaction at 130 MeV incident energy

1983 ◽  
Vol 27 (4) ◽  
pp. 1483-1488 ◽  
Author(s):  
A. Djaloeis ◽  
C. Alderliesten ◽  
J. Bojowald ◽  
C. Mayer-Böricke ◽  
W. Oelert ◽  
...  
Keyword(s):  
Born Approximation ◽  
Incident Energy ◽  
Model Potential ◽  
Distorted Wave ◽  
Distorted Wave Born Approximation

Simplistic distorted-wave Born approximation interpretation of the 11Li(p,t)9Li reaction

2019 ◽  
Vol 28 (07) ◽  
pp. 1950050
Author(s):  
A. A. Cowley
Keyword(s):  
Angular Distribution ◽  
Cross Section ◽  
Born Approximation ◽  
Incident Energy ◽  
Theoretical Treatment ◽  
Large Radius ◽  
Distorted Wave ◽  
Distorted Wave Born Approximation ◽  
Neutron Cluster ◽  
Coupled Channel

The reaction [Formula: see text]Li([Formula: see text])9Li(gs) at an incident energy of 4.3[Formula: see text]MeV is interpreted in terms of a simplistic distorted-wave Born approximation, which assumes simultaneous transfer of the halo neutrons. The halo neutrons involved in the reaction is treated as either a di-neutron cluster or individual entities. Either of these approaches appears to be a good approximation of the reaction mechanism, as would be expected from earlier studies. The dominant contribution to the yield of the reaction comes from the known (2[Formula: see text])2 neutron structure component of the ground state of [Formula: see text]Li. Furthermore, the cross-section angular distribution seems to be relatively insensitive to the fact that [Formula: see text]Li has an anomalously large radius due to its Borromean halo properties. Significantly this simple treatment of the reaction is in much better agreement with the experimental angular distribution than previous sophisticated calculations. The relevance and limitations of a more advanced theoretical treatment which includes coupled channel and sequential transfer are discussed in the context of the present results.

ROLE OF THE HE ATOM SURFACE POTENTIAL ON THE CU(001) PHONON DETERMINATION

1994 ◽  
Vol 01 (01) ◽  
pp. 67-74 ◽  
Author(s):  
A. FRANCHINI ◽  
G. SANTORO ◽  
V. BORTOLANI ◽  
A. BELLMAN ◽  
D. CVETKO ◽  
...  
Keyword(s):  
Reflection Coefficient ◽  
Inelastic Scattering ◽  
Rayleigh Wave ◽  
Interaction Potential ◽  
Born Approximation ◽  
Large Momentum ◽  
Distorted Wave ◽  
Distorted Wave Born Approximation ◽  
He Atom

We present new measurements of He atom inelastic scattering from the (001) surface of Copper. Our results confirmed the recent data obtained in Gottingen and show that at large momentum transfer in the [Formula: see text] direction the intensity of the longitudinal resonance is larger than that of the Rayleigh wave. We interpret these results by evaluating the reflection coefficient in the Distorted Wave Born Approximation. By taking the He surface interaction potential as a sum of nonspherical pairwise potential we are able to explain quantitatively the behavior of the experimental spectra.

Multi-channel distorted-wave Born approximation for rovibrational transition rates in molecular collisions

2021 ◽  
Vol 155 (3) ◽  
pp. 034105
Author(s):  
Taha Selim ◽  
Arthur Christianen ◽  
Ad van der Avoird ◽  
Gerrit C. Groenenboom
Keyword(s):  
Born Approximation ◽  
Transition Rates ◽  
Distorted Wave ◽  
Distorted Wave Born Approximation ◽  
Molecular Collisions

Analysing powers and differential cross sections of (3He,p) reactions on 6Li and 7Li at low energy

1995 ◽  
Vol 73 (1-2) ◽  
pp. 74-84 ◽  
Author(s):  
D. Baddou ◽  
C. Rioux ◽  
R. J. Slobodrian ◽  
J. M. Nelson
Keyword(s):  
Cross Sections ◽  
Differential Cross ◽  
Born Approximation ◽  
Low Energy ◽  
Angular Distributions ◽  
Differential Cross Sections ◽  
Distorted Wave ◽  
Distorted Wave Born Approximation ◽  
Nucleon Transfer ◽  
Cluster Transfer

Angular distributions of the differential cross sections and analysing powers were measured at an energy of 4.6 MeV. The results are compared with the distorted wave Born approximation predictions for two-nucleon transfer and for a deuteron-cluster transfer. The agreement is qualitative at best, and a discussion of alternatives to improve it is presented.

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