Description: Phi-Meson Photoproduction from Nuclei

This title appears in the Scientific Report : 2006

Phi-Meson Photoproduction from Nuclei

We study coherent and incoherent phi-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 roo...

Personal Name(s):	Sibirtsev, A.
	Hammer, H. W. / Meissner, U.G. / Thomas, A. W.
Contributing Institute:	Institut 3 (Theoretische Kernphysik); IKP-TH Jülich-Aachen Research Alliance - Simulation Sciences; JARA-SIM
Published in:	The @European physical journal / A, 29 (2006) S. 209 - 220
Imprint:	Berlin Springer 2006
Physical Description:	209 - 220
DOI:	10.1140/epja/i2006-10070-4
Document Type:	Journal Article
Research Program:	Physik der Hadronen und Kerne
Series Title:	European Physical Journal A 29
Subject (ZB):	photon nucleus: coherent interaction photon nucleus: incoherent interaction Phi(1020): photoproduction model: optical amplitude analysis: vector dominance coupled channel dependence: mass number slope differential cross section: energy dependence interference: (Phi(1020) omega(783)) baryon: exotic numerical calculations: interpretation of experiments
Link:	Get full text OpenAccess OpenAccess
	Publikationsportal JuSER

Please use the identifier: http://dx.doi.org/10.1140/epja/i2006-10070-4 in citations.
Please use the identifier: http://hdl.handle.net/2128/10574 in citations.

We study coherent and incoherent phi-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 omega-phi mixing. These data indicate a normal distortion of the phi-meson in nuclei, which is compatible with the results obtained through the vector meson dominance model. The data on incoherent phi-meson photoproduction show an anomalous A-dependence resulting in a very strong phi-meson distortion. These data can be explained by a coupled-channel effect through the dominant contribution from the omega -> phi or the pi -> phi transition or, more speculative, through the excitation of a cryptoexotic B (phi)-baryon.