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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
Source PublicationPHYSICAL REVIEW C
ISSN2469-9985
EISSN2469-9993
Volume94Issue:1Pages:14003
Corresponding Author董宇兵
SubtypeArticle
AbstractThe 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
WOS KeywordSU(3) QUARK-MODEL ; MESON PRODUCTION ; NEAR-THRESHOLD ; COLLISIONS ; DIBARYONS
Indexed BySCI ; ADS ; ADS
Language英语
WOS IDWOS:000380110200001
ADS Bibcode2016PhRvC..94a4003D
ADS URLhttps://ui.adsabs.harvard.edu/abs/2016PhRvC..94a4003D
ADS CITATIONShttps://ui.adsabs.harvard.edu/abs/2016PhRvC..94a4003D/citations
inspireid1436373
Citation statistics
Cited Times:34 [INSPIRE]
Cited Times:32 [ADS]
Document Type期刊论文
Identifierhttp://ir.ihep.ac.cn/handle/311005/261075
Collection院士
Affiliation中国科学院高能物理研究所
Recommended Citation
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):14003.
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),14003.
MLA 董宇兵,et al."Decay width of d*(2380) -> N N pi pi processes".PHYSICAL REVIEW C 94.1(2016):14003.
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