In-Medium Properties of the ω Meson in Photon Induced Nuclear Reactions

We discuss the possibility to study the in-medium changes of the properties of the ω meson in reactions on ordinary nuclei with elementary electromagnetic probes. We present a tree-level calculation of the elementary γp→ωp process which is extended to describe also the photoproduction of medium-modified ω mesons in nuclear matter. Using a semi-classical transport approach we obtain results for e+e− and π0γ photoproduction off heavy nuclei in the invariant mass range of the ρ and ω mesons. Both reactions are also studied experimentally and are presently being analyzed at accelerator facilities in Bonn and at Jefferson Lab. We show that the in-medium signals expected can be as large as those obtained in heavy-ion reactions.

• Publication year

  2005

• Venue

  Acta Physica Hungarica A) Heavy Ion Physics

• Publication date

  2005-02-11

• Fields of study

  Physics

• Identifiers
  DOI 10.1556/APH.27.2006.1.18arXiv nucl-th/0502029
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar

• No claims are published for this paper.

• No concepts are published for this paper.

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