Influence of a Z+(1540) resonance on K+N scattering

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 P01 phase shift is examined within the KN meson-exchange model of the Juelich 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.

9 pages, RevTeX, 3 eps figures

Cited by in corpus (63)

• Experimental Limits on the Width of the Reported Theta(1540)+
• Nonstrange and other unitarity partners of the exotic Theta+ baryon
• Chiral-Soliton Predictions for Exotic Baryons
• Experimental Search for Pentaquarks
• Search for ${\Theta }^{+}(1540)$ pentaquark in high statistics measurement of $\gamma p\to {\bar{K}}^0{K}^{+}n$ at CLAS
• Is Theta+(1540) a Kaon--Skyrmion Resonance?
• Dbar-N interaction from meson-exchange and quark-gluon dynamics
• Where are the missing members of the baryon antidecuplet?
• New results on the limit for the width of the exotic Theta^+ resonance
• Search for the ${\Theta }^{+}$ pentaquark in the reactions $\gamma p\to {\bar{K}}^0{K}^{+}n$ and $\gamma p\to {\bar{K}}^0{K}^{0}p$
• Pentaquark baryon production at the Relativistic Heavy Ion Collider
• Exotic Theta^+ baryon production induced by a photon and a pion
• Charmed meson rescattering in the reaction pbar d to D Dbar N
• Is the Theta+ a K pi N bound state?
• Pentaquark Magnetic Moments In Different Models
• The reaction ppbar -> Lambda_c-Lambda_cbar close to threshold
• Search for the pentaquark resonance signature in lattice QCD
• Pentaquark baryons in SU(3) quark model
• Study the exotic ${\Theta }^{+}$ with polarized photon beams
• On the Existence of Heavy Pentaquarks: The large Nc and Heavy Quark Limits and Beyond
• Coherent Theta^+ and Lambda(1520) photoproduction off the deuteron
• Experimental Review on Pentaquarks
• Magnetic Moment of The ${\Theta }^{+}$ Pentaquark State
• Estimate of the Theta+ width in the Relativistic Mean Field Approximation
• Analysis of Theta^+ production in K^+Xe collisions
• Theta^+ baryon production in KN and NN reactions
• Reviewing the Evidence for Pentaquarks
• Properties of baryon anti-decuplet
• Exotic states of matter in heavy meson decays
• Pentaquark ${\Theta }^{+}$ production from the reaction $\gamma p\to {\pi }^{+}{K}^{-}{\Theta }^{+}$
• DbarN interaction in a color-confining chiral quark model
• Double polarization asymmetry as a possible filter for ${\Theta }^{+}$'s parity
• Prospects for Pentaquark Production at Meson Factories
• High-resolution search for the ${\Theta }^{+}$ pentaquark via a pion-induced reaction at J-PARC
• The effect of the in-medium ${\Theta }^{+}$ pentaquark on the kaon optical potential
• On the determination of the parity of the ${\Theta }^{+}$
• A QCD Sum Rule Study of ${\Theta }^{+}$ in Nuclear Matter
• A Phenomenological Lagrangian Approach to Two Kaon Photoproduction and Pentaquark Searches
• Even Parity $\Theta$-Pentaquark and Stable Strange Nuclear Matter
• ${\Theta }^{+}$ Hypernuclei
• Theta+ formation in inclusive gamma D -> pK- X
• Pentaquark, cusp and rescattering in single kaon photoproduction off deuterium
• ${\Theta }^{+}$ hypernuclei in relativistic mean field model
• Spin asymmetries in gamma + N --> K*bar + Theta^+
• Pentaquark baryon production from photon-neuteron reactions
• Soft-core meson-baryon interactions. II. $\pi N$ and $K^{+}N$ scattering
• Evidence of Pentaquark States from K+ N Scattering Data?
• Determining Pentaquark Quantum Numbers from Strong Decays
• Resonances, and mechanisms of Theta-production
• Some aspects of ${\Theta }^{+}$ parity determination in the reaction $\gamma N\to {\Theta }^{+}\bar{K}\to NK\bar{K}$
• Heavy and Light Pentaquark Chiral Lagrangian
• On strange SU(3) partners of Theta+
• Phenomenological constraints on the Jaffe-Wilczek model of pentaquarks
• K+N scattering data and exotic Z+ resonances
• Kaon-Deuteron Scattering at Low Energies
• Effect of exotic S=+1 resonances on $K_L^{0}p$ scattering data
• SU(3) systematization of baryons
• Polarization Observables in $\gamma N\to K\bar{K}N$
• Positive parity pentaquark towers in large Nc QCD
• Antikaon angular distributions in the reaction $\gamma d\to K^{-}{\Theta }^{+}p\to K^{-}{K}^{+}np$ near the threshold and the parity of the ${\Theta }^{+}$ pentaquark
• On the K^+D Interaction at Low Energies
• Some (further) Comments on the Theta(1540) Pentaquark
• Constraints on narrow exotic states from K+p and K0_Lp scattering data