Nonlinear boson exchange potentials from quantum field theory

Journal Article · Sun Oct 01 04:00:00 EDT 1995 · Bulletin of the American Physical Society

OSTI ID:255609

Jaede, L; Geramb, H.V. von; Burt, P B

To calculate scattering amplitudes in the boson exchange model for nucleon-nucleon scattering we make use of a relativistic nonlinear Quantum Field Theory for self interacting pseudoscalar and vector mesons. The boson fields satisfy a modified Klein-Gordon equation which contains nonlinear currents. In particular we select currents of Sine Gordon and polynomial type which have known solitary wave solutions. The propagator for these fields contains a series of Feynman propagators with different masses and energy dependent factors predicted by the form of the interaction current. The pseudoscalar and vector fields are determined by the known pion and rho meson masses and two self interaction coupling constants. No form factors or other meson masses of the conventional OBEP models enter. The nonlinearity of this model describes quantitively the three regions of nucleon-nucleon potentials, the long range OPEP tail, the medium range attraction as well as the short range repulsion. We compare our results with the Bonn-B model. A crucial test of the nonlinear currents are production processes above 300MeV.

• OSTI ID: 255609
• Report Number(s): CONF-9510116--
• Journal Information: Bulletin of the American Physical Society, Journal Name: Bulletin of the American Physical Society Journal Issue: 10 Vol. 40; ISSN BAPSA6; ISSN 0003-0503
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
BOSON-EXCHANGE MODELS
KLEIN-GORDON EQUATION
NUCLEON-NUCLEON INTERACTIONS
NUCLEON-NUCLEON POTENTIAL
QUANTUM FIELD THEORY
SCATTERING AMPLITUDES