6533b82efe1ef96bd129270a
RESEARCH PRODUCT
An explanation of the Δ D 35 (1930) as a σΔ bound state
Javier VijandeEulogi OsetP. Gonzálezsubject
PhysicsNuclear and High Energy PhysicsParticle physicsNuclear TheoryHigh Energy Physics::PhenomenologyConstituent quarkSchematicResonanceAstronomy and AstrophysicsBaryonFormalism (philosophy of mathematics)Bound stateStatistical physicsInstrumentationHybrid modeldescription
Constituent quark models based on two-body potentials systematically overpredict the mass of ΔD35 (1930). A possible solution to this problem comes out from the application of a schematic hybrid model, containing three-quark as well as meson-baryon components, to the light-quark baryon spectrum. The ΔD35 (1930) and its partners ΔD33 (1940) and ΔD31 (1900) are found to contain a significant σΔ component. Then, through the use of the hidden gauge formalism, it is shown that these resonances can be dynamically generated from the σ-Δ interaction. In particular ΔD35 (1930) can be interpreted as being essentially a σΔ bound state. This interpretation suggests that the inclusion of σΔ as an effective inelastic channel in data analyses could improve the extraction and identification of the resonance.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2009-12-01 | Chinese Physics C |