A dynamical model for correlated two pion exchange in the pion-nucleon interaction
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(Published version)
Date
1995
Authors
Schutz, C.
Holinde, K.
Speth, J.
Pearce, B. C.
Durso, J. W.
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Journal Title
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Journal article
Citation
Physical Review C, 1995; 51(3):1374-1383
Statement of Responsibility
C. Schütz, K. Holinde, J. Speth, B. C. Pearce and J. W. Durso
Conference Name
Abstract
A microscopic model for the NN¯→ππ process is presented in the meson exchange framework, which in the pseudophysical region agrees with available quasiempirical information. The scalar (σ) and vector (ρ) piece of correlated two-pion exchange in the pion-nucleon interaction is then derived via dispersion integrals over the unitarity cut. Inherent ambiguities in the method and implications for the description of pion-nucleon scattering data are discussed.
School/Discipline
School of Chemistry and Physics : Physics and Mathematical Physics
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© 1995 The American Physical Society