scholarly journals Proton-nucleus elastic scattering: Comparison between phenomenological and microscopic optical potentials

2018 ◽  
Vol 98 (6) ◽  
Author(s):  
Matteo Vorabbi ◽  
Paolo Finelli ◽  
Carlotta Giusti
Keyword(s):  
Elastic Scattering ◽  
Optical Potentials

scholarly journals Elastic scattering and breakup reactions with light proton- and neutron-rich exotic nuclei

2018 ◽  
Vol 194 ◽  
pp. 07002
Author(s):  
M.K. Gaidarov ◽  
V.K. Lukyanov ◽  
D.N. Kadrev ◽  
E.V. Zemlyanaya ◽  
A.N. Antonov ◽  
...  
Keyword(s):  
Experimental Data ◽  
Elastic Scattering ◽  
Cross Sections ◽  
Cluster Model ◽  
Microscopic Analysis ◽  
High Energy ◽  
The Real ◽  
Optical Potentials ◽  
Generator Coordinate ◽  
Energy Approximation

A microscopic analysis of the optical potentials (OPs) and cross sections of elastic scattering of 8B on 12C, 58Ni, and 208Pb targets at energies 20 < E < 170 MeV and 12,14Be on 12C at 56 MeV/nucleon is carried out. The real part of the OP is calculated by a folding procedure and the imaginary part is obtained on the base of the high-energy approximation (HEA). The density distributions of 8B evaluated within the variational Monte Carlo (VMC) model and the three-cluster model (3CM) are used to construct the potentials. The 14Be densities obtained in the framework of the the generator coordinate method (GCM) are used to calculate the optical potentials, while for the same purpose both the VMC model and GCM densities of 12Be are used. In the hybrid model developed and explored in our previous works, the only free parameters are the depths of the real and imaginary parts of OP obtained by fitting the experimental data. The use of HEA to estimate the imaginary OP at energies just above the Coulomb barrier is discussed. In addition, cluster model, in which 8B consists of a p-halo and the 7Be core, is applied to calculate the breakup cross sections of 8B nucleus on 9Be, 12C, and 197Au targets, as well as momentum distributions of 7Be fragments. A good agreement of the theoretical results with the available experimental data is obtained. It is concluded that the reaction studies performed in this work may provide supplemental information on the internal spatial structure of the proton- and neutron-halo nuclei.

scholarly journals Microscopic Model Analyses of the Elastic Scattering of 25, 30 and 40 MeV Protons from Targets of Diverse Mass

2000 ◽  
Vol 53 (6) ◽  
pp. 767 ◽  
Author(s):  
P. K. Deb ◽  
K. Amos ◽  
S. Karataglidis
Keyword(s):  
Elastic Scattering ◽  
Cross Section ◽  
Microscopic Model ◽  
Extensive Survey ◽  
Proton Elastic Scattering ◽  
Energy Variation ◽  
Optical Potentials ◽  
Mev Protons

An extensive survey and analysis of cross-section and analysing power data from proton elastic scattering at energies 25 to 40 MeV is presented. The data are compared with predictions obtained from a full folding specification of the proton–nucleus optical potentials. Isotope and energy variation of the data is explained.

GENERALIZED OPTICAL POTENTIAL OF LIGHT WEAKLY BOUND CLUSTER NUCLEI

2008 ◽  
Vol 17 (10) ◽  
pp. 2326-2330 ◽  
Author(s):  
A. S. DENIKIN ◽  
V. I. ZAGREBAEV ◽  
P. DESCOUVEMONT
Keyword(s):  
Elastic Scattering ◽  
Projection Operator ◽  
Cluster Model ◽  
Optical Potential ◽  
Operator Method ◽  
Cluster Models ◽  
Weakly Bound ◽  
Intermediate Energies ◽  
Optical Potentials ◽  
Projection Operator Method

A generalized optical potential for elastic scattering induced by light weakly bound nuclei is calculated within the Feshbach projection operator method. The model explicitly takes into account the contribution of the projectile break-up continuum treated within a microscopic cluster model. The model is tested on deuteron and 6Lielastic scattering by different targets at intermediate energies. The optical potentials are then calculated for the 6 He(230 MeV) +12Creaction treating the projectile nuclei within two (α + 2n) and three (α + n + n) cluster models. The differences are analyzed.

Nuclear sizes ofCa40,42,44,48from elastic scattering of 104 MeV alpha particles. I. Experimental results and optical potentials

1980 ◽  
Vol 21 (4) ◽  
pp. 1239-1244 ◽  
Author(s):  
H. J. Gils ◽  
E. Friedman ◽  
H. Rebel ◽  
J. Buschmann ◽  
S. Zagromski ◽  
...  
Keyword(s):  
Elastic Scattering ◽  
Alpha Particles ◽  
Experimental Results ◽  
Optical Potentials

scholarly journals Wood–Saxon alpha potential for p-nuclei 106Cd and 113In

2019 ◽  
Vol 28 (10) ◽  
pp. 1950090
Author(s):  
Dipali Basak ◽  
Chinmay Basu
Keyword(s):  
Elastic Scattering ◽  
Reaction Rates ◽  
Saxon Potential ◽  
Cross Section Data ◽  
Section Data ◽  
System A ◽  
Optical Potentials ◽  
Potential Form ◽  
Alpha Elastic Scattering ◽  
Potential Parameters

Alpha elastic scattering of [Formula: see text]-nuclei was studied for calculating optical potentials. Choice of the [Formula: see text]-optical potentials is important to measure the reaction rates of [Formula: see text]-process. [Formula: see text] and [Formula: see text] elastic scattering cross-section data were used to determine the potential parameter sets at [Formula: see text][Formula: see text]MeV for [Formula: see text] and [Formula: see text], 18.8[Formula: see text]MeV for [Formula: see text] system. A Wood–Saxon potential form factor is used for both real and imaginary parts. The potential parameters extracted in the present study exhibit a satisfactory result with respect to existing global potential parameters.

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