Role of P13(1720) in ΚΣ photoproduction

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Abstract

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.

Original languageEnglish
Article number038201
Pages (from-to)382011-382014
Number of pages4
JournalPhysical Review C - Nuclear Physics
Volume62
Issue number3
Publication statusPublished - 1 Jan 2000

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