Role of P13(1720) in K Sigma photoproduction
20004 pages
Published in:
- Phys.Rev.C 62 (2000) 038201
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Abstract: (APS)
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.- photon nucleon: exclusive reaction
- K: photoproduction
- Sigma: associated production
- isobar model
- N(1720): width
- quark
- channel cross section: energy dependence
- differential cross section: angular dependence
- Sigma0: polarization
- Sigma+: polarization
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