Polarization Phenomena in Inclusive Nucleon Transfer Reactions

1998 ◽  
Vol 07 (06) ◽  
pp. 723-746 ◽  
Author(s):  
Yu. A. Berezhnoy ◽  
V. A. Slipko
Keyword(s):  
Experimental Data ◽  
Elastic Scattering ◽  
Transfer Reactions ◽  
Matrix Approach ◽  
Nucleon Transfer ◽  
Intermediate Energies ◽  
S Matrix ◽  
Wide Energy ◽  
Polarization Phenomena ◽  
Free Parameters

The theory of the polarization phenomena in the inclusive one- and two-nucleon transfer reactions (d,n) and (3 H ,n) at intermediate energies is developed on the basis of the S-matrix approach. Since the parameters of the S-matrix are found from fitting the experimental data for the elastic scattering of protons by the nuclei, the calculated polarization observables of the neutrons released in reactions 40 Ca (d,n), 208 Pb (d,n), 40 Ca (3 H ,n) and 208 Pb (3 H ,n) in the wide energy region do not have any free parameters.

The study of the refractive scattering of 6Li and 6He on carbon target with the S-matrix approach

2021 ◽  
Vol 36 (36) ◽  
Author(s):  
Liyuan Hu ◽  
Yushou Song ◽  
Yingwei Hou ◽  
Huilan Liu ◽  
Gongming Yu
Keyword(s):  
Experimental Data ◽  
Elastic Scattering ◽  
Forward Direction ◽  
Matrix Approach ◽  
Carbon Target ◽  
Intermediate Energies ◽  
S Matrix ◽  
Bombarding Energy

In this paper, the S-matrix parametrization is adopted to analyze the refractive scattering of [Formula: see text] at intermediate energies systematically and that of [Formula: see text] at 230 MeV. For [Formula: see text], the experimental data containing the Fraunhofer oscillations and the rainbow falloff are reproduced very well by adjusting parameters. The S-matrix parameters and the rainbow angles show evident tendencies as the bombarding energy increases, which are comparable with those of [Formula: see text] elastic scattering on carbon target. For [Formula: see text], the experimental data in the forward direction are reproduced successfully by slightly adjusting the parameters used in the calculation of [Formula: see text] at 210 MeV. The calculated results show that the [Formula: see text] scattering exhibits a comparable transparency with that of [Formula: see text] at intermediate energies.

ANALYSIS OF REFRACTION EFFECTS IN NUCLEAR SCATTERING ON THE BASIS OF THE S-MATRIX APPROACH

1995 ◽  
Vol 10 (31) ◽  
pp. 2305-2312 ◽  
Author(s):  
YU. A. BEREZHNOY ◽  
V.V. PILIPENKO
Keyword(s):  
Experimental Data ◽  
Elastic Scattering ◽  
Light Nucleus ◽  
Optical Model ◽  
Scattering Amplitude ◽  
Intermediate Energy ◽  
Matrix Approach ◽  
Nuclear Scattering ◽  
Atomic Nuclei ◽  
S Matrix

A new S-matrix model is proposed to describe refraction effects in the intermediate energy light nucleus elastic scattering on atomic nuclei. An analysis of experimental data on scattering of 4 He , 6 Li and 16 O nuclei by different target nuclei is made on the basis of this model and the near-far decomposition of the scattering amplitude. Comparison of our results with those obtained by the optical model is discussed.

Energy dependence of elastic scattering and one-nucleon transfer reactions induced byO16onPb208. II

1978 ◽  
Vol 18 (1) ◽  
pp. 205-222 ◽  
Author(s):  
C. Olmer ◽  
M. Mermaz ◽  
M. Buenerd ◽  
C. K. Gelbke ◽  
D. L. Hendrie ◽  
...  
Keyword(s):  
Elastic Scattering ◽  
Energy Dependence ◽  
Transfer Reactions ◽  
Nucleon Transfer

Energy dependence of elastic scattering and one-nucleon transfer reactions induced byO16onPb208. I

1978 ◽  
Vol 18 (1) ◽  
pp. 180-204 ◽  
Author(s):  
Steven C. Pieper ◽  
M. H. Macfarlane ◽  
D. H. Gloeckner ◽  
D. G. Kovar ◽  
F. D. Becchetti ◽  
...  
Keyword(s):  
Elastic Scattering ◽  
Energy Dependence ◽  
Transfer Reactions ◽  
Nucleon Transfer

scholarly journals Analysis of Angular Distributions of Heavy-ion Transfer Reactions

1980 ◽  
Vol 33 (6) ◽  
pp. 965
Author(s):  
CBO Mohr
Keyword(s):  
Elastic Scattering ◽  
Heavy Ions ◽  
Heavy Ion ◽  
Critical Value ◽  
Transfer Reactions ◽  
Angular Distributions ◽  
Ion Transfer ◽  
S Matrix ◽  
Low Energies ◽  
Nuclear Phases

Proceeding as in our earlier analysis of elastic scattering, but with a form for the S matrix appropriate for transfer, peaked at the critical value Ie and with width parameter .d, it is shown how to analyse the angular distribution of transfer reactions of heavy ions to obtain.d. The effect of the nuclear phases is found not to be of such fundamental importance as in elastic scattering. Analysis of theexperimental data reveals an increase of.d with nuclear size especially at low energies, but an increase of nuclear penetration for transfer collisions of the lightest nuclei. The circumstances in which strong coupling might occur between elastic scattering and transfer are examined.

Phase shift analysis of the 6He+208Pb and the 6He+197Au systems

Open Physics ◽  
2012 ◽  
Vol 10 (1) ◽  
Author(s):  
Orhan Bayrak ◽  
Ismail Boztosun
Keyword(s):  
Experimental Data ◽  
Elastic Scattering ◽  
Phase Shift ◽  
Long Range ◽  
Excellent Agreement ◽  
Phase Shift Analysis ◽  
Shift Analysis ◽  
S Matrix ◽  
Theoretical Results ◽  
Rainbow Scattering

AbstractWe present the elastic scattering of the 6He+208Pb and the 6He+197Au systems at the laboratory energy of E lab=27 MeV within the framework of the McIntyre parametrization, and systematically investigate χ 2/N analysis of both systems to obtain an excellent agreement between the theoretical results and the experimental data. We find large diffusivity parameters indicating long range absorption mechanisms. We also show that both systems lack both the nuclear and the Coulomb rainbow scattering for obtained S-matrix parameters.

Analysis of α-12C elastic scattering at intermediate energies by the S-matrix model

2017 ◽  
Vol 26 (05) ◽  
pp. 1750027 ◽  
Author(s):  
Yu. A. Berezhnoy ◽  
G. M. Onyshchenko ◽  
V. V. Pilipenko
Keyword(s):  
Elastic Scattering ◽  
Matrix Model ◽  
Cross Sections ◽  
Differential Cross ◽  
Projectile Energy ◽  
Scattering Pattern ◽  
Intermediate Energies ◽  
Wide Range ◽  
S Matrix ◽  
Rainbow Scattering

The results of calculations of differential cross-sections for [Formula: see text]-[Formula: see text]C elastic scattering by the [Formula: see text]-matrix model are presented for 10 energy values in the energy range 65[Formula: see text]MeV[Formula: see text] 386[Formula: see text]MeV in a wide range of scattering angles. The behavior of various scattering characteristics as functions of the projectile energy is analyzed. It is shown that the chosen parametrization of [Formula: see text]-matrix allows describing correctly the Fraunhofer oscillations of the cross-sections in the region of small scattering angles and the rainbow scattering pattern in the region of sufficiently large angles.

Sign in / Sign up

Export Citation Format

Share Document