scholarly journals Heavy quarkonia in a potential model: binding energy, decay width, and survival probability

2018 ◽  
Vol 78 (6) ◽  
Author(s):  
P. K. Srivastava ◽  
O. S. K. Chaturvedi ◽  
Lata Thakur
Keyword(s):  
Binding Energy ◽  
Decay Width ◽  
Survival Probability ◽  
Potential Model ◽  
Energy Decay ◽  
Heavy Quarkonia

scholarly journals Simulations of Defect-Interface Interactions in GaN

2000 ◽  
Vol 5 (S1) ◽  
pp. 287-293
Author(s):  
J. A. Chisholm ◽  
P. D. Bristowe
Keyword(s):  
Electronic Structure ◽  
Binding Energy ◽  
Point Defects ◽  
Potential Model ◽  
Pair Potential ◽  
Planar Defects ◽  
Native Defects ◽  
Native Point Defects ◽  
Bulk Gan ◽  
Image Position

We report on the interaction of native point defects with commonly observed planar defects in GaN. Using a pair potential model we find a positive binding energy for all native defects to the three boundary structures investigated indicating a preference for native defects to form in these interfaces. The binding energy is highest for the Ga interstitial and lowest for vacancies. Interstitials, which are not thought to occur in significant concentrations in bulk GaN, should form in the (11 0) IDB and the (10 0) SMB and consequently alter the electronic structure of these boundaries.

Quantum-chromodynamic potential model for light and heavy quarkonia

1983 ◽  
Vol 28 (7) ◽  
pp. 1716-1720 ◽  
Author(s):  
Suraj N. Gupta ◽  
Stanley F. Radford ◽  
Wayne W. Repko
Keyword(s):  
Potential Model ◽  
Heavy Quarkonia

scholarly journals SPECTRA OF QUARKONIA AT FINITE TEMPERATURE

2006 ◽  
Vol 21 (17) ◽  
pp. 1383-1391 ◽  
Author(s):  
D. U. MATRASULOV ◽  
F. C. KHANNA ◽  
KH. T. BUTANOV ◽  
KH. YU. RAKHIMOV
Keyword(s):  
Finite Temperature ◽  
Mass Spectra ◽  
Potential Model ◽  
Heavy Quarkonia ◽  
Temperature Spectra

Finite-temperature spectra of heavy quarkonia are calculated by combining potential model and thermofield dynamics formalisms. The mass spectra of the heavy quarkonia with various quark contents are calculated. It is found that binding mass of the quarkonium decreases as temperature increases.

BREIT-FERMI INTERACTIONS AND FINE-HYPERFINE SPLITTING IN HEAVY QUARKONIA

1989 ◽  
Vol 04 (13) ◽  
pp. 1277-1285 ◽  
Author(s):  
S. GHOSH ◽  
S. MUKHERJEE
Keyword(s):  
Hyperfine Splitting ◽  
Potential Model ◽  
Heavy Quarkonia ◽  
Exchange Potential ◽  
Hyperfine Splittings ◽  
Relativistic Potential ◽  
Fermi Type

The adequacy of using the Breit-Fermi type of interactions for describing the fine hyperfine splittings of heavy quarkonia has been examined critically. A potential model which just about accommodates the trend of the recent data on 1P1 states has been studied. The possibility of including the spin-dependent contributions of a pseudoscalar exchange potential is also considered. It is shown that the choice of the Breit-Fermi form for the spin-dependent interactions severely constrains the generally accepted non-relativistic potential and do not allow enough freedom to fit the recent data on 1P1 levels.

Semirelativistic potential model for heavy quarkonia

1986 ◽  
Vol 34 (1) ◽  
pp. 201-206 ◽  
Author(s):  
Suraj N. Gupta ◽  
Stanley F. Radford ◽  
Wayne W. Repko
Keyword(s):  
Potential Model ◽  
Heavy Quarkonia
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