科研之友
微信
新浪微博
Facebook
分享链接
摘要
We present the solution of the Poincare-covariant Faddeev equation for the Delta (1232) and Omega(1672) baryons. The covariant structure of the corresponding baryon amplitudes and their decomposition in terms of internal spin and orbital angular momentum is explicitly derived. The interaction kernel is truncated to a rainbow-ladder dressed-gluon exchange such that chiral symmetry and its dynamical breaking are correctly implemented. The resulting physical masses agree reasonably with experiment and their evolution with the pion mass compares favorably with lattice calculations. Evidence for the nonsphericity of the Delta resonance is discussed as well.
- 出版日期2011-11-8
