Dresden 2000 – scientific programme
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HK: Physik der Hadronen und Kerne
HK 14: Postersitzung / Theorie
HK 14.14: Poster
Thursday, March 23, 2000, 10:15–12:45, B 113
Chiral dynamics with coupled channels: inclusion of the η′ — •Stefan Wetzel, Steven Bass, Bugra Borasoy, Norbert Kaiser und Wolfram Weise — Technische Universität München
We extend our recent chiral SU(3) approach with coupled channels by
including the axial U(1) anomaly. The η′ N channel is added with
coupling strength derived from an effective Lagrangian. All the
meson-baryon channels are coupled through a potential which is
iterated to all orders in a seperable Lippmann-Schwinger equation.
As in previous work,
the few unknown parameters are adjusted to a large amount of experimental
data. Recent results are presented, with special emphasis on η and
η′ photoproduction.
(partially supported by DFG and BMBF)