The pentaquark Θ+ in nK+ and pKS0, and its Σ5+ partner

被引：11

作者：

Zhao, Q ^{[1
]}

Close, FE

机构：

[1] Univ Surrey, Dept Phys, Guildford GU2 7XH, Surrey, England

[2] Univ Oxford, Dept Theoret Phys, Oxford OX1 3NP, England

来源：

JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS | 2005年 / 31卷 / 01期

关键词：

D O I：

10.1088/0954-3899/31/1/L01

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：

A systematic lowering in mass of strangeness ambiguous pK(S)(O) peaks relative S to the nK(+) is noted. We discuss how measurement of gammap --> Theta(+)K(S)(O) --> pK(S)(O)K(S)(O) --> ppi(+) pi(-) pi(+) pi(-) in association with gammap --> Theta(+)K(S)(O) --> nK(+)K(S)(O) can help to clarify the nature of the narrow baryon state claimed in pK(S)(O) invariant mass distributions. This can both establish the Theta(+) in a single experiment and also reveal, or place severe limits on, the existence of an associated Sigma(5) pentaquark.

引用

页码：L1 / L5

页数：5

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