Kaon photoproduction: Background contributions, form factors, and missing resonances
Kaon photoproduction: Background contributions, form factors, and missing resonances
The photoproduction $p(\ensuremath{\gamma}{,K}^{+})\ensuremath{\Lambda}$ process is studied within a field-theoretic approach. It is shown that the background contributions constitute an important part of the reaction dynamics. We compare predictions obtained with three plausible techniques for dealing with these background contributions. It appears that the extracted resonance parameters drastically depend on the …