Optical Spectra of Orientationally Disordered Crystals. IV. Effects of Short‐Range Correlation of Orientations

1972 ◽  
Vol 56 (1) ◽  
pp. 553-562 ◽  
Author(s):  
D. D. Klug ◽  
E. Whalley
Keyword(s):  
Short Range ◽  
Optical Spectra ◽  
Short Range Correlation ◽  
Range Correlation ◽  
Disordered Crystals

scholarly journals The effect of short range correlation on the inelastic C4 form factors of 18O nucleus

2019 ◽  
Vol 13 (28) ◽  
pp. 130-141
Author(s):  
Abdullah S. Mdekil
Keyword(s):  
Charge Density ◽  
Short Range ◽  
Form Factors ◽  
Model Space ◽  
Charge Density Distribution ◽  
Short Range Correlation ◽  
Range Correlation ◽  
Free Parameters ◽  
State Charge ◽  
Short Range Correlations

The effect of short range correlations on the inelastic longitudinalCoulomb form factors for different states of J   4 , T  1withexcitation energies 3.553,7.114, 8.960 and 10.310 MeV in 18O isanalyzed. This effect (which depends on the correlation parameter )is inserted into the ground state charge density distribution throughthe Jastrow type correlation function. The single particle harmonicoscillator wave function is used with an oscillator size parameter b.The parameters  and b are considered as free parameters, adjustedfor each excited state separately so as to reproduce the experimentalroot mean square charge radius of 18O. The model space of 18O doesnot contribute to the transition charge density. As a result, theinelastic Coulomb form factors of 18O comes absolutely from thecore polarization transition charge density. According to thecollective modes of nuclei, the core polarization transition chargedensity is assumed to have the form of Tassie shape. It is found thatthe introduction of the effect of short range correlations is necessaryfor obtaining a remarkable modification in the calculated inelasticlongitudinal Coulomb form factors and considered as an essential forexplanation the data amazingly throughout the whole range ofconsidered momentum transfer.

Nuclear Halo-Like Phenomena of 6,8He and Nuclear Short Range Correlation

2004 ◽  
Vol 42 (1) ◽  
pp. 90-94 ◽  
Author(s):  
Zhou Li-Juan ◽  
Wu Qing ◽  
He Xiao-Rong ◽  
Ma Wei-Xing
Keyword(s):  
Short Range ◽  
Short Range Correlation ◽  
Nuclear Halo ◽  
Range Correlation
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