Journal Article

PreJuSER-33627

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Influence of a Z+(1540) resonance on K+ N Scattering

Haidenbauer, J.FZJ* ; Krein, K.

2003
Inst. Woodbury, NY

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Please use a persistent id in citations: http://hdl.handle.net/2128/1686  doi:10.1103/PhysRevC.68.052201

Abstract: The impact of a (I=0, J(P)=1/2(+))Z(+) (1540) resonance with a width of 5 MeV or more on the K+N(I=0) elastic cross section and on the P-01 phase shift is examined within the KN meson-exchange model of the JUlich group. It is shown that the rather strong enhancement of the cross section caused by the presence of a Z(+) with the above properties is not compatible with the existing empirical information on KN scattering. Only a much narrower Z(+) state could be reconciled with the existing data-or, alternatively, the Z(+) state must lie at an energy much closer to the KN threshold.

Keyword(s): K+ nucleon: elastic scattering ; partial wave ; channel cross section: momentum dependence ; meson: exchange ; Feynman graph ; baryon resonance: exotic ; pentaquark ; Theta(1540): width ; numerical calculations: interpretation of experiments

Note: Record converted from VDB: 12.11.2012

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Contributing Institute(s):

1. Institut 3 (Theoretische Kernphysik) (IKP-TH)

Research Program(s):

1. Physik der Hadronen (M01)

Appears in the scientific report 2003
Notes: This version is available at the following Publisher URL: http://prc.aps.org

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