An explanation of the△D35(1930) as a ρ△ bound state |
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作者姓名: | P. Gonz'{a}lez E. Oset J. Vijande |
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作者单位: | Departamento de F'{i}sica Te'{o}rica, Universidad de Valencia (UV) e IFIC (UV - CSIC), Spain; |
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基金项目: | Supported by DGICYT (FIS2006-03438), spanish MCyT and EU FEDER (FPA2007-65748) and Spanish Consolider Ingenio 2010 Program CPAN (CSD2007-00042). It is also partly funded by Hadron-Phisics2, a FPT-Integrating Activities and Infrastructure Program of the EU (227431) |
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摘 要: | Constituent quark models based on two-body potentials systematically overpredict the mass of △D35 (1930). A possible solution to this problem comes out from the application of a schematic hybrid model, containing three-quark as well as meson-baryon components, to the light-quark baryon spectrum. The △D35(1930) and its partners △D33(1940) and△s31(1900) are found to contain a significant pA component. Then, through the use of the hidden gauge formalism, it is shown that these resonances can be dynamically generated from the ρ-△ interaction. In particular △D35(1930) can be interpreted as being essentially a ρ△ bound state. This interpretation suggests that the inclusion of ρ△ as an effective inelastic channel in data analyses could improve the extraction and identification of the resonance.
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关 键 词: | 束缚态 组成部分 混合模式 巴勒斯坦 合作伙伴 形式主义 相互作用 数据分析 |
收稿时间: | 2009-08-07 |
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