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arXiv 0805.0239hep-th
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MHV QCD拉格朗日量

The MHV QCD Lagrangian

James H. Ettle, Tim R. Morris, Zhiguang Xiao

摘要:

我们进行光锥规范无质量QCD的场变量的正则变化,以获得一个拉格朗日项的偏振因子成比例的MHV振幅和继续由CSW处方壳外。我们解决了这个变换作为一个系列的扩展到所有的订单在新的领域,并使用它来证明所得到的顶点确实是MHV顶点声称。我们还演示了这是如何明确的顶点工程:两个夸克和两个胶子,四个夸克,和一个特定的螺旋配置的两个夸克和三个胶子。最后,我们推广到大质量QCD的建设。

英文摘要:

We perform a canonical change of the field variables of light-cone gauge massless QCD to obtain a lagrangian whose terms are proportional up to polarisation factors to MHV amplitudes and continued off shell by the CSW prescription. We solve for this transformation as a series expansion to all orders in the new fields, and use this to prove that the resulting vertices are indeed MHV vertices as claimed. We also demonstrate how this works explicitly for the vertices with: two quarks and two gluons, four quarks, and a particular helicity configuration of two quarks and three gluons. Finally, we generalise the construction to massive QCD.

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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