Using an isobar model and the new SAPHIR data we show that a better explanation of Κ0Σ+ photoproduction can be achieved by including the P13(1720) resonance. We find that the inclusion of this state does not influence the Κ+Σ0 channel appreciably, in contrast to the other three ΚΣ channels, where the prominent effect is found in the Κ0Σ+ channel. The extracted fractional decay width is consistent with the prediction of the quark model, whose magnitude is almost one order smaller than the value given by the Particle Data Group.
|Number of pages||4|
|Journal||Physical Review C - Nuclear Physics|
|Publication status||Published - 1 Jan 2000|