Meson-exchange $πN$ Models in Three-Dimensional Bethe-Salpeter Formulation

Details Meson-exchange $πN$ Models in Three-Dimensional Bethe-Salpeter Formulation Meson-exchange $πN$ Models in Three-Dimensional Bethe-Salpeter Formulation

2000-12-31

arxiv.org/abs/nucl-th/0101007v2

Phys.Rev. C64 (2001) 034309

Physics

Nuclear Physics

Nuclear Theory

29 pages, 3 Tables, 7 figures, Latex, changed the unit of figures 4,5,6 and 7

Scientific paper

10.1103/PhysRevC.64.034309

The pion-nucleon scattering is investigated by using several three-dimensional reduction schemes of the Bethe-Salpeter equation for a model Lagrangian involving $\pi$, $N$, $\Delta$, $\rho$, and $\sigma$ fields. It is found that all of the resulting meson-exchange models can give similar good descriptions of the $\pi N$ scattering data up to 400 MeV. However they have significant differences in describing the $\pi NN$ and $\pi N\Delta$ form factors and the $\pi N$ off-shell t-matrix elements. We point out that these differences can be best distinguished by investigating the near threshold pion production from nucleon-nucleon collisions and pion photoproduction on the nucleon. The consequences of using these models to investigate various pion-nucleus reactions are also discussed.

Affiliated with

Also associated with

No associations

Rating

Meson-exchange $πN$ Models in Three-Dimensional Bethe-Salpeter Formulation 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 Meson-exchange $πN$ Models in Three-Dimensional Bethe-Salpeter Formulation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Meson-exchange $πN$ Models in Three-Dimensional Bethe-Salpeter Formulation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-533468