https://nn-online.org
10 January 2026
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Home
About NN-OnLine
Past, present, and future
NN interaction
Intro and Info
Phase shifts
All phase shifts for one energy
Phase shifts versus energy: numbers
Phase shifts versus energy: figure
Scattering amplitudes
Versus angle for one energy: numbers
Versus angle for one energy: figure
Versus energy and angle: figure
Scattering observables
Versus angle for one energy: numbers
Versus angle for one energy: figure
Versus energy and angle: figure
np total cross sections versus energy: numbers
Experimental data
NN data base: tabular
NN data base: abundance plots
Calculate χ
2
for your own data
Deuteron
Properties
Wavefuncion: numbers
Wavefuncion: figure
SAID (external)
YN interaction
Phase shifts
All phase shifts for one energy
Phase shifts versus energy: numbers
Phase shifts versus energy: figure
Scattering observables
Versus angle for one energy: numbers
Versus angle for one energy: figure
Scattering data
Intro and Info
All references
Λ p data
Σ
+
p data
Σ
-
p data
Ξ
-
p data
Ξ
0
p data
πNN coupling constants
Publications
Code
Intro and Info
NN and YN potentials
GD
STRINGS
XML
ERFC
Obituary J.J. de Swart
Physics in Nijmegen
J.J. de Swart
J.deSwart@science.ru.nl
http://nn-online.org
10 January 2026
info@nn-online.org
