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arXiv 0712.1771hep-ph
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强力生产过程断弦距离的推导

Deducing the string-breaking distance in strong production processes

Eef van Beveren, George Rupp

摘要:

我们表明,弦断裂距离可以从介子生产数据读取,通过采用先前推导的生产振幅的表达式。相应地,我们发现,在共振谱展开模型中得到的产生非奇异q-qbar对的半径分别为0.67、0.34和0.20 fm,在光夸克、c-cbar和b-bbar环境下,与S波双π介子产生数据完全一致。

英文摘要:

We show that the string-breaking distance can be read from meson-production data, by employing a previously derived expression for the production amplitude. Accordingly, we find that the radii of 0.67, 0.34 and 0.20 fm for the creation of non-strange q-qbar pairs obtained in the Resonance-Spectrum-Expansion model, for light-quark, c-cbar, and b-bbar environments, respectively, are in perfect agreement with S-wave di-pion production data, upon employing an ansatz with no additional free parameters.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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