Title of article :
The role of the Roper in chiral perturbation theory
Author/Authors :
Bingwei Long، نويسنده , , U. Van Kolck، نويسنده ,
Issue Information :
دوهفته نامه با شماره پیاپی سال 2011
Abstract :
We include the Roper excitation of the nucleon in a version of heavy-baryon chiral perturbation theory recently developed for energies around the delta resonance. We find significant improvement in the image channel.
Keywords :
Effective field theory , chiral perturbation theory , The Roper resonance
Journal title :
Nuclear physics A
Journal title :
Nuclear physics A
