Search of η-nucleus bound state formation in recoil free transfer reactions

Jha, V. ; Budzanowski, A. ; Chatterjee, A. ; Hawranek, P. ; Jahn, R. ; et., al (2009) Search of η-nucleus bound state formation in recoil free transfer reactions International Journal of Modern Physics E, 18 (5-6). pp. 1378-1382. ISSN 0218-3013

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Official URL: http://www.worldscinet.com/ijmpe/18/1805n06/S02183...

Related URL: http://dx.doi.org/10.1142/S0218301309013592

Abstract

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

Item Type:Article
Source:Copyright of this article belongs to World Scientific Publishing Company.
Keywords:η Meson Production; η-nucleon; η-nucleus Interaction
ID Code:85480
Deposited On:03 Mar 2012 10:46
Last Modified:03 Mar 2012 10:46

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