Energy-independent PWA of the reaction $\gamma p\to K^{+}\Lambda$

Abstract

Using all recent data on the differential cross sections and spin observables for the reaction $\gamma p\to K^{+}\Lambda$, an energy-independent partial-wave analysis is performed. The analysis requires multipoles up to $L=2$; there is no evidence that the fit requires multipoles with $L=3$. At present the available data allow us to extract the dominant multipoles only. These are compatible with the multipoles obtained in the energy-dependent fit. This result supports the reliability of the Bonn-Gatchina energy-dependent results.

arXiv comment9 pages, 3 figures

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Cited by in corpus (12)

• The impact of ${\mathbf{K}}^{+}\mathbf{\Lambda }$ photoproduction on the resonance spectrum
• Strong evidence for nucleon resonances near 1900\,MeV
• Measurements of $ep\to e^{\prime }{\pi }^{+}{\pi }^{-}{p}^{\prime }$ Cross Sections with CLAS at $1.40<W<2.0$ GeV and $2.0<Q^2<5.0$ GeV${}^2$
• First results on nucleon resonance photocouplings from the $\gamma p\to {\pi }^{+}{\pi }^{-}p$ reaction
• Nucleon Resonance Structure from Exclusive Meson Electroproduction with CLAS
• $K^{+}\Lambda$ photoproduction at forward angles and low momentum transfer
• Observation of a cusp-like structure in the $\gamma p\to K^{+}{\Sigma }^0$ cross section at forward angles and low momentum transfer
• $N^{\ast }$ resonances from $K\Lambda$ amplitudes in sliced bins in energy
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• Extraction of $t$-slopes from experimental $\gamma p\to K^{+}\Lambda$ and $\gamma p\to K^{+}{\Sigma }_0$ cross section data