scholarly journals Self-consistent description of the halo nature of 31Ne with continuum and pairing correlations

2021 ◽  
Author(s):  
shisheng Zhang ◽  
Shiyi Zhong ◽  
Bo Shao ◽  
Michael Smith
Keyword(s):  
Cross Sections ◽  
Reaction Cross ◽  
Glauber Model ◽  
Coordinate Space ◽  
Full Description ◽  
Longitudinal Momentum ◽  
Carbon Target ◽  
Single Neutron ◽  
Self Consistent ◽  
Pairing Correlations

Abstract Using a Glauber model with our relativistic fully microscopic structure model input, we give a full description of the halo nature of $^{31}$Ne that includes a self-consistent use of pairing and continuum contributions that makes predictions consistent with reaction cross section measurements. Our predictions of total reaction and one-neutron removal cross sections of $^{31}$Ne on a Carbon target were significantly enhanced compared with those of neighboring Neon isotopes, agreeing with measurements at 240 MeV/nucleon and consistent with a single neutron halo. Furthermore, our calculations of the inclusive longitudinal momentum distribution of the $^{30}$Ne and valence neutron residues from the $^{31}$Ne breakup reaction indicate a dilute density distribution in coordinate space, another halo signature.

STRUCTURE AND REACTIONS OF NEUTRON-RICH OXYGEN ISOTOPES

2012 ◽  
Vol 21 (10) ◽  
pp. 1250083 ◽  
Author(s):  
M. RASHDAN
Keyword(s):  
Cross Sections ◽  
Mean Field ◽  
High Energy ◽  
Reaction Cross ◽  
Glauber Model ◽  
Medium Effects ◽  
Halo Structure ◽  
Density Distributions ◽  
Optical Limit ◽  
Reaction Cross Sections

The structure of 16-26 O is investigated within the relativistic mean field (RMF) as well as high-energy nuclear collisions. The reaction cross-sections of 16-24 O +12 C around 1 GeV are calculated within the multiple scattering theory, where the multiple integrals are evaluated by Monte Carlo method as well as by the optical limit approximation of the Glauber model. In-medium effects are investigated within the optical limit, where it is found to be important in order to get reliable information about nuclear radii and density distributions. The reaction cross-sections indicate to a halo structure for 23 O . This neutron halo is also found in the rms matter radii and nuclear densities especially when Fermi shape is used in the optical limit, including in-medium effects, in extracting the parameters of the density distributions from the experimental reaction cross-sections.

ALPHA-NUCLEUS TOTAL REACTION CROSS SECTION IN THE RIGID PROJECTILE MODEL USING MICROSCOPIC N-α AMPLITUDE

2001 ◽  
Vol 10 (01) ◽  
pp. 43-53 ◽  
Author(s):  
I. AHMAD ◽  
M. A. ABDULMOMEN ◽  
L. A. AL-KHATTABI
Keyword(s):  
Cross Section ◽  
Cross Sections ◽  
Reaction Cross Section ◽  
Scattering Amplitude ◽  
Reaction Cross ◽  
Glauber Model ◽  
Total Reaction Cross Section ◽  
Total Reaction ◽  
Rigid Projectile ◽  
Optical Limit Approximation

Coulomb modified Glauber model has been applied to calculate α total reaction cross-section for 12 C , 16 O and 40 Ca nuclei in the rigid projectile model using microscopic N-α amplitude which is evaluated in terms of NN scattering amplitude parameters. Using realistic densities for target nuclei and the same input information, we find that the predictions of the rigid projectile approximation for α reaction cross sections are, in general, in better agreement with the experimental data than those of the optical limit approximation.

scholarly journals STRUCTURE EFFECT ON ONE-NEUTRON REMOVAL REACTION USING RELATIVISTIC MEAN FIELD DENSITIES IN GLAUBER MODEL

2011 ◽  
Vol 20 (12) ◽  
pp. 2505-2519 ◽  
Author(s):  
R. N. PANDA ◽  
S. K. PATRA
Keyword(s):  
Experimental Data ◽  
Cross Sections ◽  
Mean Field ◽  
Reaction Cross ◽  
Glauber Model ◽  
Halo Nuclei ◽  
Relativistic Mean Field ◽  
The Difference ◽  
The One ◽  
Good Agreement

We calculate the one-neutron removal reaction cross-section (σ-1n) for a few stable and neutron-rich Boron and Carbon halo nuclei with 12 C as target, using relativistic mean field (RMF) densities, in the frame work of Glauber model. The results are compared with the experimental data. Study of the stable nuclei with the deformed densities have shown a good agreement with the data. However, it differs significantly for the halo nuclei. We observe that while estimating the σ-1n value from the difference of reaction cross-sections of two neighboring nuclei with mass number A and that of A-1 in an isotopic chain, we get good agreement with the known experimental data for the halo cases.

NUCLEAR REACTION CROSS-SECTION FOR DRIP-LINE NUCLEI IN THE FRAMEWORK OF GLAUBER MODEL USING RELATIVISTIC AND NONRELATIVISTIC DENSITIES

2013 ◽  
Vol 22 (01) ◽  
pp. 1350005 ◽  
Author(s):  
MAHESH K. SHARMA ◽  
M. S. MEHTA ◽  
S. K. PATRA
Keyword(s):  
Experimental Data ◽  
Nuclear Reaction ◽  
Cross Section ◽  
Cross Sections ◽  
Reaction Cross Section ◽  
Mass Region ◽  
Reaction Cross ◽  
Drip Line ◽  
Glauber Model ◽  
Reaction Cross Sections

We study the nuclear reaction cross-sections for some of the neutron-rich nuclei in the lighter mass region of the periodic chart which are recently measured. The well-known Glauber formalism is used by taking deformed relativistic and nonrelativistic densities as input in the calculations. We find reasonable reaction cross-sections with both the densities. However with a better inspection of the results, it is noticed that the results obtained with relativistic densities are more closure to the experimental data than the nonrelativistic Skyrme densities.

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