(1405) as a multiquark state
Special Research Centre for the Subatomic Structure of Matter, University of Adelaide, Adelaide, SA 5005, Australia
Received: 11 November 1997 / Revised version: 28 April 1998 Communicated by W. Weise
In the QCD sum rule approach we predict the (1405) mass by choosing the multiquark interpolating field. It is found that the mass is about 1.419 GeV from sum rule which is more reliable than sum rule, where and are two invariant functions of the correlator . We also present the sum rules for the K+ p and the multiquark states, and compare to those for the multiquark state. The mass of the (1600) can be also reproduced in our approach.
24.85.+p Quarks, gluons, and QCD in nuclei and nuclear processes - 14.20.-c Baryons (including antiparticles) - 21.10.Dr Binding energies and masses