On the search for a narrow penta-quark Z$^+$ baryon in NN interactions

A. Sibirtsev (Giessen U.); CSSM); K. Goeke (Ruhr U. Bochum); K. Tsushima (Adelaide U.; M.V. Polyakov (Ruhr U. Bochum; NPI Petersburg); W. Cassing (Giessen U.)

arxiv: nucl-th/9909048 · v1 · submitted 1999-09-19 · ⚛️ nucl-th

On the search for a narrow penta-quark Z^+ baryon in NN interactions

M.V. Polyakov (Ruhr U. Bochum , NPI Petersburg) , A. Sibirtsev (Giessen U.) , K. Tsushima (Adelaide U. , CSSM) , W. Cassing (Giessen U.) , K. Goeke (Ruhr U. Bochum) This is my paper

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keywords baryonnarrowaroundmasspenta-quarkaboveanalysisconditions

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The possibility for an observation of a narrow penta-quark $Z^+$ baryon in $NN$ reactions is discussed. It is shown that the $pp{\to}n\Sigma^+K^+$ reaction at excess energies around 100 MeV above threshold provides optimal conditions for $Z^+$ baryon detection by an analysis of the $nK^+$ invariant mass spectrum, if the $Z^+$ mass is located around 1.5 GeV involving a rather narrow width.

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On the search for a narrow penta-quark Z^+ baryon in NN interactions

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