https://doi.org/10.1140/epja/i2006-10265-7
QNP 2006
Electromagnetic properties of strange baryons in a relativistic quark model
1
Department of Subatomic and Radiation Physics, Ghent University, Proeftuinstaat 86, B-9000, Gent, Belgium
2
HISKP, Bonn University, Nußallee 14-16, D-53115, Bonn, Germany
* e-mail: Tim.VanCauteren@UGent.be
Received:
23
November
2006
Accepted:
30
November
2006
Published online:
16
March
2007
We present some of our results for the electromagnetic properties of excited Σ hyperons, computed within the framework of the Bonn constituent-quark model, which is based on the Bethe-Salpeter approach. The seven parameters entering the model are fitted against the best-known baryon masses. Accordingly, the results for the form factors and helicity amplitudes are genuine predictions. We compare with the scarce experimental data available and discuss the processes in which Σ *'s may play an important role.
PACS: 11.10.St Bound and unstable states; Bethe-Salpeter equations – / 12.39.Ki Relativistic quark model – / 13.40.Gp Electromagnetic form factors – / 14.20.Jn Hyperons –
© Società Italiana di Fisica and Springer-Verlag, 2007
