The width of the $\Theta^{ + }$ exotic baryon in the chiral soliton model期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

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The width of the $\Theta^{ + }$ exotic baryon in the chiral soliton model

Authors:	R L Jaffe

Institution:	(1) Massachusetts Institute of Technology, Center for Theoretical Physics, Laboratory for Nuclear Science and Department of Physics, 02139 Cambridge, Massachusetts, USA

Abstract:	In 1997 Diakonov, Petrov, and Polyakov, calculated the width of the exotic baryon that they called $\Theta^{ + }$ . The prediction, $\Gamma(\Theta^{ + })\lesssim 15$ MeV, has received considerable attention, especially in light of the narrowness of the experimentally reported $\Theta^{ + }$ resonance. However, there is an arithmetic error in their work: when corrected, the width estimate quoted in that paper should have been $\lesssim 30$ MeV.Received: 29 January 2004, Published online: 5 May 2004

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