Is the strange quark heavy or light?
| Autor: | Albert Bramon, E. Bagan, Carles Ayala |
|---|---|
| Rok vydání: | 1987 |
| Předmět: |
Physics
Nuclear and High Energy Physics Particle physics Strange quark High Energy Physics::Lattice High Energy Physics::Phenomenology Nuclear Theory Down quark Omega baryon Bottom quark Sigma baryon Nuclear physics Strange matter Quark star Up quark High Energy Physics::Experiment Nuclear Experiment |
| Zdroj: | Physics Letters B. 189:347-353 |
| ISSN: | 0370-2693 |
| DOI: | 10.1016/0370-2693(87)91446-8 |
| Popis: | The (invariant) strange quark mass, m s , and vacuum condensate, 〈ss〉 0 , are discussed in the context of SVZ-sum rules saturated by the scalar κ -meson. The value obtained for m s ( m s ≅360 MeV ) is found to approach its constituent mass value, while 〈ss〉 0 is predicted to be negligibly small. These two features, which are characteristic of the c- and b- (i.e., heavy) quarks, are new and unexpected for the s-quark. Our results strongly depend on the κ-meson parameters, for which further analyses seem of interest. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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