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https://hdl.handle.net/2440/57837
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Type: | Journal article |
Title: | phi-meson photoproduction from nuclei |
Author: | Sibirtsev, A. Hammer, H. Meissner, U. Thomas, A. |
Citation: | European Physical Journal A: Hadrons and Nuclei, 2006; 29(2):209-220 |
Publisher: | Springer |
Issue Date: | 2006 |
ISSN: | 1434-6001 1434-601X |
Statement of Responsibility: | A. Sibirtsev, H.-W. Hammer, U.-G. Meißner and A.W. Thomas |
Abstract: | 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 compatible with the results obtained through the vector meson dominance model. The data on incoherent φ-meson photoproduction show an anomalous A-dependence resulting in a very strong φ-meson distortion. These data can be explained by a coupled-channel effect through the dominant contribution from the ω↦φ or the π↦φ transition or, more speculative, through the excitation of a cryptoexotic B φ-baryon. |
Rights: | © 2006 Springer, Part of Springer Science+Business Media |
DOI: | 10.1140/epja/i2006-10070-4 |
Published version: | http://dx.doi.org/10.1140/epja/i2006-10070-4 |
Appears in Collections: | Aurora harvest Physics publications |
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