https://doi.org/10.1140/epja/i2007-10499-9
Regular Article - Theoretical Physics
Baryon-baryon and baryon-antibaryon interaction amplitudes in the spin-momentum operator expansion method
1
Helmholtz-Institut für Strahlen- und Kernphysik, Universität Bonn, Germany
2
Petersburg Nuclear Physics Institute, 188300, Gatchina, Russia
* e-mail: klempt@hiskp.uni-bonn.de
Received:
13
March
2007
Accepted:
7
November
2007
Published online:
22
November
2007
Partial-wave scattering amplitudes in baryon-baryon and baryon-antibaryon collisions and amplitudes for the production and decay of baryon resonances are constructed in the framework of the spin-momentum operator expansion method. The approach is relativistically invariant and it allows us to perform combined analyses of different reactions imposing analyticity and unitarity directly. The role of final-state interactions (triangle and box diagrams) is discussed.
PACS: 11.80.Et Partial-wave analysis – / 13.30.-a Decays of baryons – / 13.60.Le Meson production – / 14.20.Gk Baryon resonances with S = 0 –
© Società Italiana di Fisica and Springer-Verlag, 2007