An explanation of the Delta(D35) (1930) as a rho Delta bound state

作者：Gonzalez P^*; Oset E; Vijande J

来源：Chinese Physics C, 2009, 33(12): 1267-1272.

• Baryon spectra
• dynamically generated resonances
• quark model

Constituent quark models based on two-body potentials systematically overpredict the mass of Delta(D35) (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 Delta(D35) (1930) and its partners Delta(D33) (1940) and Delta(S31) (1900) are found to contain a significant rho Delta component Then, through the use of the hidden gauge formalism, it is shown that these resonances can be dynamically generated from the rho-Delta interaction. In particular Delta(D35) (1930) can be interpreted as being essentially a rho Delta bound state. This interpretation suggests that the inclusion of rho Delta as an effective inelastic channel in data analyses could improve the extraction and identification of the resonance.

• 出版日期2009-12