Estimates for parameters and characteristics of the confining SU(3)-gluonic field in the ground state of toponium: Relativistic and nonrelativistic approaches
| Autor: | Yu. P. Goncharov |
|---|---|
| Rok vydání: | 2008 |
| Předmět: |
Quantum chromodynamics
Physics Nuclear and High Energy Physics Particle physics Field (physics) High Energy Physics::Lattice High Energy Physics::Phenomenology FOS: Physical sciences Quarkonium Gluon High Energy Physics - Phenomenology High Energy Physics - Phenomenology (hep-ph) Quantum electrodynamics Ground state |
| Zdroj: | Nuclear Physics A. 808:73-94 |
| ISSN: | 0375-9474 |
| DOI: | 10.1016/j.nuclphysa.2008.05.002 |
| Popis: | The confinement mechanism earlier proposed by author is applied to describe the (possible) ground state of toponium $\eta_t$. For this aim the nonperturbative consistent approach is elaborated in both relativistic and nonrelativistic cases. The study entails estimates for parameters of the confining SU(3)-gluonic field in the above quarkonium, those estimates being also consistent with possible width of decay $\eta_t\to2\gamma$. The corresponding estimates of the gluon concentrations, electric and magnetic colour field strengths are also adduced for the mentioned field at the scales of toponium. Comment: 28 pages, LaTeX |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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