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GlueX Experiment Document 2784-v4

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Photoproduction of omega mesons off nuclei and impact of polarization on meson-nucleon interaction

Document #:
GlueX-doc-2784-v4
Document type:
Journal Publications
Submitted by:
Sergey Gevorgyan
Updated by:
Sergey Gevorgyan
Document Created:
26 Jul 2015, 14:25
Contents Revised:
14 Aug 2015, 10:15
Metadata Revised:
14 Aug 2015, 10:15
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Other Versions:
GlueX-doc-2784-v7
28 Jan 2016, 12:03
GlueX-doc-2784-v6
15 Oct 2015, 14:59
GlueX-doc-2784-v5
23 Sep 2015, 18:15
GlueX-doc-2784-v3
29 Jul 2015, 15:27
GlueX-doc-2784-v2
26 Jul 2015, 16:47
GlueX-doc-2784-v1
26 Jul 2015, 14:25
Abstract:
We consider photoproduction of $\omega$ mesons off complex nuclei to study interactions of transversely and longitudinally polarized vector mesons with nucleons. Whereas the total cross section for interactions of the transversely polarized vector mesons with nucleons
sigma_T = sigma(V_T N) can be obtained from coherent photoproduction, measurements of vector meson photoproduction in the incoherent region provide a unique opportunity to extract the not-yet-measured total cross section for longitudinally polarized mesons
sigma_L = sigma(V_L N). The predictions for the latter strongly depend on the theoretical approaches. This work is stimulated by the construction of the new experiment GlueX at Jefferson Lab, designed to study the photoproduction of mesons in a large beam energy range up to 12 GeV.
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