Hypernuclear production by ($\gamma ,K^{+}$) reaction within a relativistic model

Abstract

Within a fully covariant model based on an effective Lagrangian picture, we investigate the hypernuclear production in photon-nucleus interaction on ${}^{16}$O target. The explicit kaon production vertex is described via creation, propagation and decay into relevant channel of $N^{\ast }$(1650), $N^{\ast }$(1710), and $N^{\ast }$(1720) intermediate baryonic resonance states in the initial interaction of the incident photon with one of the target protons. Bound state nucleon and hyperon wave functions are obtained by solving the Dirac equation. Using vertex parameters determined in the previous studies, contributions of the $N^{\ast }$(1710) baryonic resonance dominate the total production cross sections which are found to peak at photon energies below 1 GeV. The results show that photoproduction is the most appropriate means for studying the unnatural parity hypernuclear states, thus accessing the spin dependence of the hyperon-nucleon interaction.

12 pages, 4 figures, Dicussions revised, version to appear in Phys. Rev.C (rapid communications)

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Cited by in corpus (10)

• A study of Lambda hypernuclei within the Skyrme-Hartree-Fock Model
• ${\gamma }^{\ast }N\to N(1710)$ transition at high momentum transfer
• Photoproduction of hypernuclei within the quark-meson coupling model
• Production of cascade hypernuclei via the (K-,K+) reaction within a quark-meson coupling model
• A relativistic description of the A(pi+,K+)_ΛA reaction
• Binding of hypernuclei, and phtoproduction of $\Lambda$-hypernuclei in the latest quark-meson coupling model
• Production of the H dibaryon via the (K^-,K^+) reaction on a ${}^{12}$C target
• Production of ${\Xi }^{-}$-hypernuclei via the ($K^{-},K^{+}$) reaction in a quark-meson coupling model
• Production of hypernuclei with hadronic and electromagnetic probes
• Fermi motion effects in electroproduction of hypernuclei