Determination of Baryon and Baryonic Resonance Masses from QCD Sum Rules. 1. Nonstrange Baryons

摘要

The masses of nucleon, of isobar delta and of resonance N*(Jsup(P)=3/2sup(-), T=1/2) and the amplitudes of virtual transitions of these states into quark currents are calculated basing on the QCD sum rules. The power corrections of high order in the operator expansion are taken into account. The results obtained from analysis of a large set of the sum rules in an overdetermined system are shown to be selfconsistent. (Atomindex citation 15:032106)