The equivalence theorem and the Bethe-Salpeter equation

Details The equivalence theorem and the Bethe-Salpeter equation The equivalence theorem and the Bethe-Salpeter equation

2001-06-22

arxiv.org/abs/nucl-th/0106057v2

Phys.Lett. B521 (2001) 204-210

Physics

Nuclear Physics

Nuclear Theory

10 pages, 4 figures, using REVTeX. Fig. 2 corrected, results unchanged, to be published in Phys. Lett. B

Scientific paper

10.1016/S0370-2693(01)01242-4

We solve the Bethe-Salpeter equation for two-particle scattering in a field-theoretical model using two lagrangians related by a field transformation. The kernel of the equation consists of the sum of all tree-level diagrams for each lagrangian. The solutions differ even if all four external particles are put on the mass shell, which implies that observables calculated by solving the Bethe-Salpeter equation depend on the representation of the theory. We point out that this violation of the equivalence theorem has a simple explanation and should be expected for any Bethe-Salpeter equation with a tree-level kernel. Implications for dynamical models of hadronic interactions are discussed.

Affiliated with

Also associated with

No associations

Rating

The equivalence theorem and the Bethe-Salpeter equation 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 The equivalence theorem and the Bethe-Salpeter equation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The equivalence theorem and the Bethe-Salpeter equation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-596572