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Decay width of d*(2380) -> N N pi pi processes
Dong YB(董宇兵); Dong, YB; Shen PN(沈彭年); Zhang ZY(张宗烨); Huang, F; Shen, PN; Zhang, ZY
2016
发表期刊PHYSICAL REVIEW C
卷号94期号:1
通讯作者董宇兵
文章类型Article
摘要The decay widths of four-body double-pion decays d* -> pn pi(0)pi(0), d* -> pn pi(+)pi(-), and isoscalar parts of d* -> pp pi(0)pi(-) and d* -> nn pi(+)pi(0) are explicitly calculated with the help of the d* wave function obtained in a chiral SU( 3) quark model calculation. The effect of the dynamical structure on d*'s width is analyzed both in the single Delta Delta channel and the Delta Delta + CC coupled-channel approximations. It is found that in the latter case, the obtained partial decay widths of d* -> pn pi(0)pi(0), d* -> pn pi(+)pi(-), and those of d* to the isoscalar parts of pp pi(0)pi(-) and nn pi(+)pi(0) are about 9.6 MeV, 20.6 MeV, 3.5 MeV and 3.5 MeV, respectively. As a consequence, the total width is about 71.9 MeV. These widths are consistent with our previous estimation by using cross section data and observed width. Apparently, the resultant mass and width in the Delta Delta + CC coupled-channel calculation again support our assertion that the d* resonance is a six-quark dominated exotic state.
DOI10.1103/PhysRevC.94.014003
关键词[WOS]SU(3) QUARK-MODEL ; MESON PRODUCTION ; NEAR-THRESHOLD ; COLLISIONS ; DIBARYONS
语种英语
WOS记录号WOS:000380110200001
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被引频次:8[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/261075
专题院士
作者单位中国科学院高能物理研究所
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GB/T 7714
Dong YB,Dong, YB,Shen PN,et al. Decay width of d*(2380) -> N N pi pi processes[J]. PHYSICAL REVIEW C,2016,94(1).
APA 董宇兵.,Dong, YB.,沈彭年.,张宗烨.,Huang, F.,...&Zhang, ZY.(2016).Decay width of d*(2380) -> N N pi pi processes.PHYSICAL REVIEW C,94(1).
MLA 董宇兵,et al."Decay width of d*(2380) -> N N pi pi processes".PHYSICAL REVIEW C 94.1(2016).
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