A Statistical Approach for Experimental Cross-Section Covariance Estimation Via Shrinkage

2015 ◽  
Vol 179 (4) ◽  
Author(s):  
Suzanne Varet ◽  
N. Vayatis ◽  
P. Dossantos-Uzarralde
Keyword(s):  
Cross Section ◽  
Statistical Approach ◽  
Covariance Estimation ◽  
Experimental Cross Section ◽  
Experimental Cross

COMPOUND NUCLEUS FORMATION IN NITROGEN–OXYGEN AND OXYGEN–OXYGEN REACTIONS

1962 ◽  
Vol 40 (1) ◽  
pp. 139-149
Author(s):  
W. A. Cartledge
Keyword(s):  
Cross Section ◽  
Compound Nucleus ◽  
Center Of Mass ◽  
Branching Ratio ◽  
Nuclear Interaction ◽  
Experimental Cross Section ◽  
Interaction Radius ◽  
Nucleus Formation ◽  
Experimental Cross ◽  
Compound Nucleus Formation

The experimental cross section for the reaction O16(N14,2p)Al28 is compared with the predictions of the square-well model of compound nucleus formation over the range 6.3 to 12 Mev (center of mass energy). The branching ratio is estimated from the experimental cross section for the comparison reaction Si29(p,2p)Al28 over the same range of excitation in the compound nucleus P30*. It is found that the branching ratio probably increases from about 10% to 20%, which requires the nuclear interaction radius for N14 + O16 to decrease from about 8.5 to 7.5 fermis as the energy is increased over this range.Because of the similarity in mass and observed charge distributions in N14 and O16, the interaction radius for compound nucleus formation in a collision between two oxygen nuclei is probably also similar and in the range 8.0 to 9.1 fermis at energies far below the Coulomb barrier. A consequence of this result is that oxygen ions, which may be present in the cores of sufficiently developed red giant stars, will be destroyed by O16 + O16 collisions in about 105 years and 1 year respectively, at temperatures in the vicinity of 13.0 and 18.5 × 108 °K.

Experimental cross section for the 152Sm(n, γ)153Sm reaction at 0.0334 eV

2014 ◽  
Vol 102 (7) ◽  
Author(s):  
Md. Shuza Uddin ◽  
Nazmin Afroze ◽  
Tapash Kumar Datta ◽  
Syed Mohammod Hossain ◽  
A. K. M. Zakaria ◽  
...  
Keyword(s):  
Cross Section ◽  
Neutron Capture ◽  
Capture Cross Section ◽  
Experimental Cross Section ◽  
Capture Cross ◽  
Neutron Capture Cross Section ◽  
Experimental Cross

AbstractThe neutron capture cross section for the

scholarly journals Kriging approach for the experimental cross-section covariances estimation

2013 ◽  
Vol 42 ◽  
pp. 07003
Author(s):  
S. Varet ◽  
P. Dossantos-Uzarralde ◽  
N. Vayatis ◽  
A. Garlaud ◽  
E. Bauge
Keyword(s):  
Cross Section ◽  
Experimental Cross Section ◽  
Experimental Cross ◽  
Kriging Approach

Experimental Cross Section for Photodetachment of Electrons fromH−andD−

1955 ◽  
Vol 98 (4) ◽  
pp. 1028-1034 ◽  
Author(s):  
Lewis M. Branscomb ◽  
Stephen J. Smith
Keyword(s):  
Cross Section ◽  
Experimental Cross Section ◽  
Experimental Cross

Experimental cross section for the 139La(n, γ)140La reaction at 0.0536 eV

2010 ◽  
Vol 98 (1) ◽  
pp. 1-6 ◽  
Author(s):  
M. H. Chowdhury ◽  
Md. Shuza Uddin ◽  
S. M. Hossain ◽  
Sk. A. Latif ◽  
M. A. Hafiz ◽  
...  
Keyword(s):  
Cross Section ◽  
Experimental Cross Section ◽  
Experimental Cross

Absolute experimental cross section for the ionization ofTl+ions by electron impact

1976 ◽  
Vol 13 (1) ◽  
pp. 54-57 ◽  
Author(s):  
T. F. Divine ◽  
R. K. Feeney ◽  
William E. Sayle ◽  
J. W. Hooper
Keyword(s):  
Electron Impact ◽  
Cross Section ◽  
Experimental Cross Section ◽  
Experimental Cross
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