Mass and width of strange baryon resonances in QCD sum rules

摘要

The mass spectra of strange baryons in the octet family are investigated in afinite-energy QCD sum rule approach based on the Gauss-Weierstrass transform.The phenomenological form of the spectral function is saturated by the groundstate and two of the lowest excited states, considered as having oppositeparities. Treating the ground state parameters as known, the masses, widths andcouplings to the interpolating fields are determined and compared toexperiment.