Pion-nucleon scattering inside the Mandelstam triangle

Details Pion-nucleon scattering inside the Mandelstam triangle Pion-nucleon scattering inside the Mandelstam triangle

1999-08-04

arxiv.org/abs/hep-ph/9908247v1

Nucl.Phys. A668 (2000) 97-112

Physics

High Energy Physics

High Energy Physics - Phenomenology

17 pp, LaTeX2e, 4 figs

Scientific paper

10.1016/S0375-9474(99)00813-1

We study the third order pion-nucleon scattering amplitude obtained from heavy baryon chiral perturbation theory inside the Mandelstam triangle. We reconstruct the pion-nucleon amplitude in the unphysical region by use of dispersion relations and determine the pertinent low-energy constants by a fit to this amplitude. A detailed comparison with values obtained from phase shift analysis is given. Our analysis leads to a pion-nucleon sigma-term of sigma(0) = 40 MeV based on the Karlsruhe partial wave analysis. We have repeated the same procedure using the latest solution of the VPI group and find a much larger value for sigma(0).

Affiliated with

Also associated with

No associations

Rating

Pion-nucleon scattering inside the Mandelstam triangle 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 Pion-nucleon scattering inside the Mandelstam triangle, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pion-nucleon scattering inside the Mandelstam triangle will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-373947