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Title: Eta-mesic nuclei: Past, present, future

Eta-mesic nucleus or the quasibound nuclear state of an eta (η) meson in a nucleus is caused by strong interaction force alone. This new type of nuclear species, which extends the landscape of nuclear physics, has been extensively studied since its prediction in 1986. We review and analyze in great detail the models of the fundamental η–nucleon interaction leading to the formation of an η–mesic nucleus, the methods used in calculating the properties of a bound η, and the approaches employed in the interpretation of the pertinent experimental data. In view of the successful observation of the η–mesic nucleus 25Mgη and other promising experimental results, future direction in searching for more η–mesic nuclei is suggested.
 [1] ;  [2]
  1. Fordham Univ., Bronx, NY (United States)
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Publication Date:
OSTI Identifier:
Report Number(s):
Journal ID: ISSN 0218-3013; TRN: US1500744
Grant/Contract Number:
Accepted Manuscript
Journal Name:
International Journal of Modern Physics E
Additional Journal Information:
Journal Name: International Journal of Modern Physics E; Journal ID: ISSN 0218-3013
World Scientific
Research Org:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Org:
Country of Publication:
United States
73 NUCLEAR PHYSICS AND RADIATION PHYSICS Eta-mesic nuclei; final-state interaction; binding energy; scattering length