Beyond the wave function at the origin: Some momentum-dependent effects in the nonrelativistic quark model

1982 ◽  
Vol 25 (7) ◽  
pp. 1944-1950 ◽  
Author(s):  
Cameron Hayne ◽  
Nathan Isgur
Keyword(s):  
Wave Function ◽  
Quark Model ◽  
Nonrelativistic Quark Model

Two-photon widths from the Bethe–Salpeter wave function

1995 ◽  
Vol 73 (3-4) ◽  
pp. 138-142
Author(s):  
Ileana Guiasu ◽  
Roman Koniuk
Keyword(s):  
Experimental Data ◽  
Wave Function ◽  
Simple Model ◽  
Quark Model ◽  
Two Photon ◽  
Model Wave Function ◽  
Nonrelativistic Quark Model ◽  
Model Predictions ◽  
Mass Dependent ◽  
Dependent Factor

Two-photon widths of pseudoscalar quarkonium are calculated using a Bethe–Salpeter wave function, recently proposed by Gromes. The results are compared to the standard, nonrelativistic quark-model predictions. The nonrelativistic quark model requires a phenomenological mass-dependent factor to bring its calculated pion width in agreement with the experimental data. We find that the Bethe–Salpeter approach, even using a very simple model wave function, gives results that are close to the experimental data for the pion and at the same time the successful nonrelativistic quark-model predictions for heavier systems are not disturbed.

Nonrelativistic Quark Model

1966 ◽  
Vol 17 (11) ◽  
pp. 612-613 ◽  
Author(s):  
L. I. Schiff
Keyword(s):  
Quark Model ◽  
Nonrelativistic Quark Model

Calculation of proton decay in the nonrelativistic quark model

1981 ◽  
Vol 23 (7) ◽  
pp. 1580-1590 ◽  
Author(s):  
M. B. Gavela ◽  
A. Le Yaouanc ◽  
L. Oliver ◽  
O. Pène ◽  
J. C. Raynal
Keyword(s):  
Quark Model ◽  
Proton Decay ◽  
Nonrelativistic Quark Model
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