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arXiv 0712.0971hep-ph
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通过闵可夫斯基和欧几里德Bethe-Salpeter振幅的电磁形状因子

Electromagnetic form factor via Minkowski and Euclidean Bethe-Salpeter amplitudes

V. A. Karmanov, J. Carbonell, M. Mangin-Brinet

摘要:

通过欧氏Bethe-Salpeter振幅和通过光阵面波函数计算的电磁形状因子与在Minkowski空间中使用Bethe-Salpeter振幅得到的电磁形状因子进行了比较。通过欧几里得Bethe-Salpeter振幅表示的形状因子(包括静态近似和非静态近似)与闵可夫斯基振幅有很大不同,而在光阵面方法中发现的形状因子与闵可夫斯基振幅几乎没有区别。

英文摘要:

The electromagnetic form factors calculated through Euclidean Bethe-Salpeter amplitude and through the light-front wave function are compared with the one found using the Bethe-Salpeter amplitude in Minkowski space. The form factor expressed through the Euclidean Bethe-Salpeter amplitude (both within and without static approximation) considerably differs from the Minkowski one, whereas form factor found in the light-front approach is almost indistinguishable from it.

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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