Phys. Rev. C 62, 038201 (2000) [4 pages]Role of P13(1720) in KΣ photoproductionReceived 25 January 2000; published 26 July 2000 Using an isobar model and the new SAPHIR data we show that a better explanation of K0Σ+ photoproduction can be achieved by including the P13(1720) resonance. We find that the inclusion of this state does not influence the K+Σ0 channel appreciably, in contrast to the other three KΣ channels, where the prominent effect is found in the K0Σ+ 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. © 2000 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevC.62.038201
DOI:
10.1103/PhysRevC.62.038201
PACS:
14.20.Gk, 25.20.Lj, 13.60.Le, 13.30.Eg
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