Origin of resonances in chiral dynamics

Details Origin of resonances in chiral dynamics Origin of resonances in chiral dynamics

2009-09-30

arxiv.org/abs/0909.5531v1

Physics

Nuclear Physics

Nuclear Theory

9 pages, 3 figures, Talk given at Chiral Dynamics 2009, July 6-10, 2009, University of Bern, Switzerland

Scientific paper

The nature of baryon resonances is studied in the dynamical chiral coupled-channel approach for meson-baryon scattering. In general, origin of resonances in two-body scattering can be classified into two categories: dynamically generated states and genuine elementary particles. We demonstrate that the genuine contribution in the loop function can be excluded by adopting a natural renormalization scheme. The origin of resonances can be studied by looking at the effective interaction in the natural renormalization scheme, which is deduced from the phenomenological amplitude fitted to experimental data. Applying this method to the baryon resonances, we find that the dominant component for the Lambda(1405) resonance is dynamical, while a genuine contribution plays a substantial role for the structure of the N(1535).

Affiliated with

Also associated with

No associations

Rating

Origin of resonances in chiral dynamics does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Origin of resonances in chiral dynamics, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Origin of resonances in chiral dynamics will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-589497