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 کامل0 Test of φ renormalization in nuclei through φ photoproduction
We propose an experimental procedure to find out the medium modifications of the φ meson. The reaction is inclusive φ photoproduction in nuclei, looking for KK pairs from the φ decay with total momentum smaller than 100-150 MeV/c, which are made possible at energies of present laboratories from center of mass φ backward production and the help of Fermi motion. We have conducted a many body calc...
متن کاملΦ-meson Photoproduction and Strangeness of the Nucleon
The possible existence of hidden strangeness in the nucleon has been one of the most controversial problems in hadron physics. Some experimental results have been interpreted as signatures of hidden strangeness of the nucleon, but it has been also claimed that these experiments could be understood with little or null strangeness in the nucleon. It will be interesting, therefore, to study other ...
متن کاملTheoretical Model of the Φ Meson Photoproduction Amplitudes
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
متن کاملNucleonic resonance effects in the φ meson photoproduction
The process γp → φp close to threshold is investigated focusing on the role played by the sand u-channel nucleonic resonances. For this purpose, a recent quark model approach, based on the SU(6) ⊗ O(3) symmetry with an effective Lagrangian, is extended to the φ meson photoproduction. Another non-diffractive process, the tchannel π0 exchange, is also included. The diffractive contribution is pro...
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ژورنال
عنوان ژورنال: The European Physical Journal A
سال: 2006
ISSN: 1434-6001,1434-601X
DOI: 10.1140/epja/i2006-10070-4