The (3He,d) Reaction on 69Ga

1975 ◽  
Vol 53 (2) ◽  
pp. 117-122 ◽  
Author(s):  
J. P. Labrie ◽  
E. E. Habib ◽  
Z. Preibisz
Keyword(s):  
Born Approximation ◽  
Beam Energy ◽  
Incident Beam ◽  
Angular Distributions ◽  
Distorted Wave ◽  
Distorted Wave Born Approximation ◽  
Model Calculations ◽  
Sum Rule ◽  
Pairing Model ◽  
Incident Beam Energy

Excited levels of 70Ge and proton holes in 69Ga have been investigated by means of the 69Ga (3He, d)70Ge reaction at an incident beam energy of 22.5 MeV. Angular distributions were measured and are compared with the prediction of the distorted-wave-Born-approximation (DWBA) theory in order to obtain the spectroscopic strengths of each level.The number of proton holes in 69Ga was obtained from the sum rule of the spectroscopic strengths. The vacancy probability UJ2 and the center of gravity energy EJ for the 2p3/2, 1f5/2, and 2p1/2 subshells are[Formula: see text]These are compared with the pairing model calculations.

NUCLEAR STRUCTURE OF 99Mo FROM THE (t,p) REACTION

2009 ◽  
Vol 18 (07) ◽  
pp. 1483-1496 ◽  
Author(s):  
M. A. RAHMAN ◽  
M. S. CHOWDHURY
Keyword(s):  
Cross Sections ◽  
Differential Cross ◽  
Born Approximation ◽  
Beam Energy ◽  
Nuclear Emulsion ◽  
Angular Distributions ◽  
Distorted Wave ◽  
Distorted Wave Born Approximation ◽  
Model Predictions ◽  
Atomic Weapon

The 97 Mo (t,p)99 Mo reaction has been studied with the triton beam energy of 12 MeV obtained from tandem Van de Graaff accelerator at the Atomic Weapon Research Establishment, Aldermaston. Proton spectra were obtained at 12 different angles from 5° to 87.5° at an interval of 7.5° and were detected in nuclear emulsion plates. Angular distributions for transitions to 46 levels in the energy range from 0 to 2.054 MeV have been measured. Absolute differential cross-sections for the levels have been measured. The experimental angular distributions are compared with the distorted-wave Born approximation calculations (DWBA) to determine L and Jπ values. The present results are compared with the previous experimental results and model predictions.

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.

Using a double folding potential for the derivation of the spectroscopic factors of the (3He, d) transfer reaction

2016 ◽  
Vol 25 (09) ◽  
pp. 1650061 ◽  
Author(s):  
R. Pampa Condori ◽  
H. Dias ◽  
J. Lubian
Keyword(s):  
Born Approximation ◽  
Transfer Reaction ◽  
Distorted Wave ◽  
Distorted Wave Born Approximation ◽  
Model Calculations ◽  
Folding Potential ◽  
Spectroscopic Factors ◽  
Double Folding ◽  
Double Folding Potential ◽  
Good Agreement

In this paper, the [Formula: see text] reactions are revisited, with the goal of obtaining spectroscopic factors (SF) for the transition to the ground state of some residual nuclei, applying the distorted wave Born approximation (DWBA). The double-folding São Paulo Potential (SPP) was used to derive the distorted wave function in the entrance and exit channels. The derived SF are compared with the results of extensive shell model calculations showing a rather good agreement.

scholarly journals Study of 26Mg through 1p pick-up reaction 27Al(d,3He)

2017 ◽  
Vol 26 (10) ◽  
pp. 1750064 ◽  
Author(s):  
Vishal Srivastava ◽  
C. Bhattacharya ◽  
T. K. Rana ◽  
S. Manna ◽  
S. Kundu ◽  
...  
Keyword(s):  
Excitation Energy ◽  
Shell Model ◽  
Born Approximation ◽  
Beam Energy ◽  
Distorted Wave ◽  
Distorted Wave Born Approximation ◽  
Rotational Model ◽  
Spectroscopic Factors ◽  
Zero Range ◽  
Reaction 27Al

The reaction [Formula: see text]Al([Formula: see text],3He) at 25 MeV beam energy has been utilized to study the states in even–even nucleus [Formula: see text]Mg. The spectroscopic factors have been extracted for the states of [Formula: see text]Mg up to 7.50[Formula: see text]MeV excitation energy using local, zero-range distorted wave Born approximation. The extracted spectroscopic factors have been compared with the previously reported values. The present results were also compared with the predictions from a theoretical shell model and rotational model.

The 44Ca(d,α)42K Reaction at 4.0 MeV

1974 ◽  
Vol 52 (9) ◽  
pp. 772-778 ◽  
Author(s):  
S. T. Lee ◽  
D. D. Long
Keyword(s):  
Excitation Function ◽  
Born Approximation ◽  
Optical Model ◽  
Angular Distributions ◽  
Model Parameters ◽  
Direct Reaction ◽  
Distorted Wave ◽  
Distorted Wave Born Approximation

The angular distributions from the 44Ca(d,α)42K reaction were measured at Ed = 4.0 MeV in a range of angles from 40° to 160°. Based on the observation of forward peaking of the angular distributions and diminished fluctuations at 4 MeV in the excitation function, an analysis was carried out utilizing the distorted wave Born approximation. For the five strongly excited levels below 1.3 MeV, satisfactory fits were obtained using optical model parameters from the literature. The results, which were consistent with the spin assignments from other experiments, revealed no gross inadequacies of a direct reaction analysis at this energy which are not present at higher energies. For three levels in42K, the range of spins was tentatively reduced. In the case of the 1.113 MeV level, no previous assignments had been made.

A STUDY OF 97Mo FROM THE (t, p) REACTION

2008 ◽  
Vol 17 (06) ◽  
pp. 1141-1156 ◽  
Author(s):  
M. A. RAHMAN ◽  
M. S. CHOWDHURY
Keyword(s):  
Energy Range ◽  
Cross Sections ◽  
Differential Cross ◽  
Born Approximation ◽  
Nuclear Emulsion ◽  
Angular Distributions ◽  
Distorted Wave ◽  
Distorted Wave Born Approximation ◽  
Model Predictions ◽  
Atomic Weapon

The 97 Mo nucleus has been studied with the reaction 95 Mo (t, p) 97 Mo using a multichannel magnetic spectrograph. The isotopically enriched thin target 95 Mo was bombarded with the 12 MeV triton beam obtained from the tandem Van de Graaff accelerator at the Atomic Weapon Research Establishment, Aldermaston. Proton spectra are obtained at 12 different angles from 5° to 87.5° at an interval of 7.5° and are detected in nuclear emulsion plates. Forty-eight levels in the energy range from 0.000 to 3.189 MeV have been observed. Absolute differential cross-sections for these levels have been measured. The angular distributions are compared with the theoretical distorted-wave Born approximation calculations to determine L and Jπ values. The nuclear properties of 97 Mo are compared with previous experimental results and model predictions.

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
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