Böckmann R (1999)
Publication Status: Published
Publication Type: Journal article, Original article
Publication year: 1999
Publisher: American Physical Society
Book Volume: 60
Pages Range: 552121-552125
Journal Issue: 5
URI: https://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=4243678500&origin=inward
The πNN vertex function is calculated within a dispersion theoretical approach, including both πρ and πσ intermediate states, where the σ meson is an abbreviation for a correlated pion pair in a relative S wave with isospin I = 0. A strong coupling between the πσ and πρ states is found. This leads to a softening of the πNN form factor. In a monopole parametrization, a cutoff Λ ≈ 800 MeV is obtained as compared to Λ ≈ 1000 MeV using πρ intermediate states only.
APA:
Böckmann, R. (1999). πNN vertex function in a meson-theoretical model. Physical Review C - Nuclear Physics, 60(5), 552121-552125.
MLA:
Böckmann, Rainer. "πNN vertex function in a meson-theoretical model." Physical Review C - Nuclear Physics 60.5 (1999): 552121-552125.
BibTeX: Download