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

被引：27

作者：

Polyakov, MV ^{[1
]}

Sibirtsev, A

Tsushima, K

Cassing, W

Goeke, K

机构：

[1] Ruhr Univ Bochum, Inst Theoret Phys 2, D-44780 Bochum, Germany

[2] Petersburg Nucl Phys Inst, Gatchina 188350, Russia

[3] Univ Giessen, Inst Theoret Phys, D-35392 Giessen, Germany

[4] Univ Adelaide, Special Res Ctr Subatom Struct Matter, CSSM, Adelaide, SA 5005, Australia

[5] Univ Adelaide, Dept Phys & Math Phys, Adelaide, SA 5005, Australia

来源：

EUROPEAN PHYSICAL JOURNAL A | 2000年 / 9卷 / 01期

关键词：

D O I：

10.1007/s100500070061

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

The possibility for an observation of a narrow penta-quark Z(+)-baryon in NN reactions is discussed. It is shown that the pp-->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.

引用

页码：115 / 118

页数：4

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