Chronology of Milestone Events in Particle Physics - BOWCOCK 1961
Chronology of Milestone Events in Particle Physics


Bowcock, J.; Cottingham, W.N.; Lurie, D.;
The Effect of a Pion-Pion Interaction on Low-Energy Meson-Nucleon Scattering - II.
Nuovo Cim. 19 (1961) 142;

Using the formalism developed in a previous paper we investigated the consequences of a pion-pion interaction on low energy pion-nucleon phase shifts. By confining our considerations to the isotopic spin flip combination of waves we are able to isolate the effects due to a pion-pion interaction in the T = 1 state. We find that such an interaction is definitely necessary to give agreement with experiment and that a simple resonance in the J = 1, T = 1 state gives a good fit to the data.

Related references
More (earlier) information appears in
J. Bowcock, N. Gottingham, and D. Lurie, Nuovo Cim. 16 (1960) 918;
See also
G. F. Chew, M. L. Goldberger, F. E. Low, and Y. Nambu, Phys. Rev. 106 (1957) 1337;
A. Stanghellini, Nuovo Cim. 10 (1958) 398;
W. R. Frazer and J. R. Fulco, Phys. Rev. 117 (1960) 1603;
Analyse data from
M. Cini and S. P. Fubini, Nuovo Cim. 10 (1960) 398;
W. D. Walker, J. Davis, and W. D. Shephard, Phys. Rev. 118 (1960) 1612;

  p p <0.6 GeV (Tlab) angp, pwa

Particles studied
  ex, qn

Record comments
Prediction of the spin = 1, isospin = 1 resonance in the two-pion system.
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