Quarkonia
| Autor: | Krammer, M., Krasemann, H. |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 1979 |
| Předmět: |
QUARKONIUM [QUARK]
ELECTRIC [TRANSITION] High Energy Physics::Lattice CHARMONIUM [HYPERFINE STRUCTURE] Nuclear Theory SCHROEDINGER EQUATION [SCALING] BIBLIOGRAPHY LECTURES ENERGY LEVELS [PSI MESONS] bottom CHI(3450) [NEW PARTICLE] DUALITY CHARGE [QUARK] PSI MESONS [RADIATIVE DECAY] CHARMONIUM [QUARK] MAGNETIC [TRANSITION] QUANTUM CHROMODYNAMICS SCHROEDINGER EQUATION [QUANTUM MECHANICS] BOUND STATE [QUARK ANTIQUARK] High Energy Physics::Phenomenology CHI(3590) [NEW PARTICLE] RADIATIVE DECAY [SCALING] CHARMONIUM [FINE STRUCTURE] SCALING [RADIATIVE DECAY] RADIATIVE DECAY [PSI MESONS] ELECTRON POSITRON [ANNIHILATION] JET ANNIHILATION [ELECTRON POSITRON] High Energy Physics::Experiment X(2830) |
| DOI: | 10.1007/978-3-7091-8574-2_4 |
| Popis: | When the J/ψ and ψ’ were discovered in fall 1974 [1] we all witnessed a dramatic and beautiful revival of the quark model [2]. The predicted new quark flavour, c = charm [3] could be added to the hadron spectroscopy by the interpretation of the new particles as c c¯ bound states. It was argued that the new system is nonrelativistic: Charmonium [4]. Whereas the old mesons suffered from the fact that the quarks are extremely relativistic (mass differences are of the order of the masses themselves), in Charmonium the heavy (≈ 1.5 GeV) c-quarks should move relatively slowly, β2 = (v/c)2 ≈ 0.2. The well known powerful methods of exploring a nonrelativistic system could be used. This was the source of real excitement about the new particles. |
| Databáze: | OpenAIRE |
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