Kaon photoproduction: background contributions, form factors and missing resonances

Abstract

The photoproduction p(gamma, K+)Lambda process is studied within a field-theoretic approach. It is shown that the background contributions constitute an important part of the reaction dynamics. We compare predictions obtained with three plausible techniques for dealing with these background contributions. It appears that the extracted resonance parameters drastically depend on the applied technique. We investigate the implications of the corrections to the functional form of the hadronic form factor in the contact term, recently suggested by Davidson and Workman (Phys. Rev. C 63, 025210). The role of background contributions and hadronic form factors for the identification of the quantum numbers of ``missing'' resonances is discussed.

11 pages, 7 eps figures, submitted to Phys. Rev. C

References in corpus (4)

• Form factors and photoproduction amplitudes
• The role of hyperon resonances in p(gamma,K+)Lambda processes
• Coupled-channel study of gamma p --> K+ Lambda
• Effect of form factors in fits to photoproduction data

Cited by in corpus (72)

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• Vector meson production and nucleon resonance analysis in a coupled-channel approach for energies m_N < sqrt(s) < 2 GeV II: photon-induced results
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• A coupled-channel analysis of $K\Lambda$ production in the nucleon resonance region
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• Kaon photoproduction in a multipole approach
• First Measurement of Transferred Polarization in the Exclusive e p --> e' K+ Lambda Reaction
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• Contribution of higher nucleon resonances to K*Λ photoproduction
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• Consistent interactions for high-spin fermion fields
• A Genetic Algorithm Analysis of N* Resonances in $p(\gamma ,K^{+})\Lambda$ Reactions
• The role of the $N^{\ast }(2080)$ resonance in the $\vec{\gamma }p\to K^{+}\Lambda (1520)$ reaction
• A Bayesian analysis of kaon photoproduction with the Regge-plus-resonance model
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• Photoproduction of $K\Lambda$ on the proton
• Electromagnetic production of kaon near threshold
• Electroproduction of kaons from the proton in a Regge-plus-resonance approach
• Helicity amplitudes and electromagnetic decays of hyperon resonances
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• Analysis of the consistency of kaon photoproduction data with Lambda in the final state
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• Coherent Theta^+ and Lambda(1520) photoproduction off the deuteron
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• Pentaquark ${\Theta }^{+}$ production from the reaction $\gamma p\to {\pi }^{+}{K}^{-}{\Theta }^{+}$
• Energy-independent PWA of the reaction $\gamma p\to K^{+}\Lambda$
• Goldberger-Treiman constraint criteria for hyperon coupling constants
• K*Sigma photoproduction off the proton target with baryon resonances
• Exclusive electroproduction of K+ Lambda and K+ Sigma^0 final states at Q^2 = 0.030-0.055 (GeV/c)^2
• High-resolution hypernuclear spectroscopy at Jefferson Lab, Hall A
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• $K^{+}\Lambda$ photoproduction at forward angles and low momentum transfer
• Scaling and Resonances in Elementary K^+ Lambda Photoproduction
• New fits to the reaction $\gamma p\to K^{+}\Lambda$
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• Photo-production of neutral kaons on 12C in the threshold region
• Role of the $N^{\ast }(2080)$ in $pp\to p{K}^{+}\Lambda (1520)$ and ${\pi }^{-}p\to K^0\Lambda (1520)$ reactions
• Regge-plus-resonance predictions for kaon photoproduction from the neutron
• High Resolution Hypernuclear Spectroscopy at Jefferson Lab Hall A
• Ratio of ${\sigma }_L/{\sigma }_T$ for $p(e,e^{\prime }{K}^{+})\Lambda$ Extracted from Polarization Transfer
• Investigating the parity of the exotic Theta^+ baryon from the kaon photoproduction
• Pentaquark baryon production from photon-neuteron reactions
• Kaon electromagnetic production: constraints set by new data
• Theory of the electromagnetic production of hyperons
• Photon induced K$\Lambda$ production on the proton in the low energy region
• Electroproduction of $\Lambda (1520)$ off the nucleon target with the nucleon resonances
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• Comparing phenomenological recipes with a microscopic model for the electric amplitude in strangeness photoproduction
• Ridge regression for minimizing the couplings of hyperon resonances in the $K^{+}\Lambda$ photoproduction
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• Strangeness Electromagnetic Production on Nucleons and Nuclei
• Photoproduction of Pentaquark in Feynman and Regge Theories
• First Measurement of pi e -> pi e gamma Pion Virtual Compton Scattering
• Photo- and Electroproduction of Kaons
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• Pentaquark Theta^+ production via gamma N ->K^*bar Theta^+(3/2^(+-))
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• A Simple Quark Model for γp -> K^+ Λ^0
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• Differential cross section analysis in kaon photoproduction using associated legendre polynomials