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arXiv 1012.0246hep-phnucl-th
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Minkowski空间中Bethe-Salpeter方程的解及其在电磁形状因子中的应用

Solutions of the Bethe-Salpeter equation in Minkowski space and applications to electromagnetic form factors

J. Carbonell, V. A. Karmanov

摘要:

提出了一种求解Minkowski空间中二体Bethe-Salpeter方程的新方法。它是基于Nakanishi的Bethe-Salpeter振幅积分表示和随后的投影方程的光前平面上。该方法适用于由不可约费曼图给出的任何核以及无自旋粒子或费米子系统。得到了Minkowski空间中的Bethe-Salpeter振幅。电磁形状因子的计算和比较的欧几里德的结果。

英文摘要:

We present a new method for solving the two-body Bethe-Salpeter equation in Minkowski space. It is based on the Nakanishi integral representation of the Bethe-Salpeter amplitude and on subsequent projection of the equation on the light-front plane. The method is valid for any kernel given by the irreducible Feynman graphs and for systems of spinless particles or fermions. The Bethe-Salpeter amplitudes in Minkowski space are obtained. The electromagnetic form factors are computed and compared to the Euclidean results.

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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