Journal Article

PreJuSER-8497

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Search of eta-NUCLEUS Bound State Formation in Recoil Free Transfer Reactions

Jha, V. ; Budzanowski, A. ; Chatterjee, A. ; et, a.FZJ*

2009
World Scientific Singapore [u.a.]

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Please use a persistent id in citations: doi:10.1142/S0218301309013592

Abstract: We have performed an experiment to search for the bound state of eta meson in nuclei. We have measured the reaction p + 27Al -> 3He + p + pi- + X at recoil-free kinematics. An eta meson possibly produced in this reaction would be thus almost at r est in the laboratory system and could therefore be bound with high probability, if bound nuclear eta states exist. The decay of such a state through the N*(1535) resonance would lead to a proton-pi- pair emitted in opposite directions. For these conditio ns we find some indication of such a bound state. An upper limit of approx 0.5 nb for the formation cross section is found.

Note: Record converted from VDB: 12.11.2012

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Contributing Institute(s):

1. Experimentelle Hadronstruktur (IKP-1)

Research Program(s):

1. Physik der Hadronen und Kerne (P53)

Appears in the scientific report 2009

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