Theoretical Model of the Φ Meson Photoproduction Amplitudes
نویسندگان
چکیده
P–wave amplitudes for elastic KK photoproduction on hydrogen near the φ(1020) resonance have been derived in an analytical form and a partial wave decomposition of the amplitudes has been performed. We discuss the high energy limit of the resulting amplitudes and compare two types of pomeron coupling to nucleons. PACS numbers: 13.60.Le, 13.75Lb
منابع مشابه
φ-meson photoproduction from nuclei
We study coherent and incoherent φ-meson photoproduction from nuclei. The available data are analyzed in terms of single and coupled channel photoproduction. It is found that the data on coherent photoproduction can be well reproduced within a single channel optical model and show only little room for ω− φ mixing. These data indicate a normal distortion of the φ-meson in nuclei, which is compat...
متن کاملTHE FLORIDA STATE UNIVERSITY COLLEGE OF ARTS AND SCIENCES SEARCH FOR NEW AND UNUSUAL STRANGEONIA IN PHOTOPRODUCTION USING CLAS By MUKESH
We perform a survey of the proton, K+ , K− 3 charged track data, taken by the CLAS detector for the HyCLAS experiment [1] during the g12 run-period at Jefferson Lab. We aim to study the strong decay amplitudes, partial widths and production channels of strangeonia from the CLAS g12 dataset. HyCLAS was motivated by the experimental results for gluonic hybrid meson candidates, theoretical Lattice...
متن کاملHard Exclusive Production of a Vector Meson
The processes of a light neutral vector meson, V = ρ 0 , ω, φ, electroproduction and a heavy quarkonium, V = J/Ψ, Υ, photoproduction are studied in the framework of QCD factorization. We derive a complete set of hard-scattering amplitudes which describe these processes at next-to-leading order (NLO).
متن کاملDiffractive Vector Meson Photoproduction from Dual String Theory
We study diffractive vector meson photoproduction using string theory via AdS/CFT. The large s behavior of the cross sections for the scattering of the vector meson V on a proton is dominated by the soft Pomeron, σV ∼ s2ǫ−2α′P/B, where from the string theory model of [9], ǫ is approximately 1/7 below 10 GeV, and 1/11 for higher, but still sub-Froissart, energies. This is due to the production o...
متن کاملPolarization Observables in φ Meson Photoproduction and the Strangeness Content of the Proton
The contributions of the diffractive production and direct knockout processes to the φ photoproduction from proton are calculated with the use of Pomeron-photon analogy and a relativistic harmonic oscillator quark model. We find that some of the double polarization observables are very sensitive to a possible ss̄ admixture in the proton. It arises from the different spin structures of the amplit...
متن کامل