Véronique Bernard، نويسنده , , Thomas R. Hemmert، نويسنده , , Ulf-G. Mei?ner، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2003
Pages :
9
From page :
137
To page :
145
Abstract :
We present a Lorentz-invariant formulation of baryon chiral perturbation theory including spin-3/2 fields. Particular attention is paid to the projection on the spin-3/2 components of the delta fields. We also discuss the nucleon mass and the pion–nucleon sigma term.
