Search for Fractionally Charged Quarks Produced by 200- and 300-GeV Proton-Nuclear Interactions

1974 ◽  
Vol 32 (15) ◽  
pp. 858-862 ◽  
Author(s):  
T. Nash ◽  
T. Yamanouchi ◽  
D. Nease ◽  
J. Sculli
Keyword(s):  
Nuclear Interactions

"Universality" of Gaussian orthogonal ensemble fluctuations: the two-body random ensemble and shell model spectra

1990 ◽  
Vol 68 (3) ◽  
pp. 301-312 ◽  
Author(s):  
Gaetan J. H. Laberge ◽  
Rizwan U. Haq
Keyword(s):  
Energy Level ◽  
Shell Model ◽  
Detailed Analysis ◽  
Close Agreement ◽  
Level Density ◽  
Nuclear Interactions ◽  
Gaussian Orthogonal Ensemble ◽  
Random Hamiltonians

Starting from an appropriate decomposition of the level density into an average and fluctuating part, we studied the energy level fluctuations of an ensemble defined by two-body random Hamiltonians. A detailed analysis of several spectrally averaged fluctuation measures shows close agreement with the predictions of the Gaussian orthogonal ensemble (GOE). This confirms earlier indications that, except for noninteracting particles, fluctuation measures are insensitive to the rank of the interaction. Further, analysis of spectra obtained from realistic nuclear interactions agrees well with the GOE indicating that specific properties of the Hamiltonian have little or no influence on fluctuations. These results, therefore, strengthen our belief in the "universality" of GOE fluctuations.

A cloud chamber study of nuclear interactions with energies of about 100 GeV

1960 ◽  
Vol 17 (2) ◽  
pp. 166-188 ◽  
Author(s):  
L. Montanet ◽  
J. A. Newth ◽  
G. Petrucci ◽  
R. A. Salmeron ◽  
A. Zichichi
Keyword(s):  
Cloud Chamber ◽  
Nuclear Interactions ◽  
Chamber Study
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