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arXiv · 0805.4577

CSW rules for massive matter legs and glue loops

Rutger Boels·Christian Schwinn
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Abstract

Cachazo-Svrcek-Witten-type Feynman rules for massive matter scalar legs and pure glue loops are presented, obtained by deriving them directly from the space-time action. We comment on the derivation and some sample applications, in particular to calculating one loop effects in pure Yang-Mills theory. Furthermore, we derive CSW rules for effective Higgs-gluon couplings studied in the literature. In addition, it is shown how twistor techniques for deriving canonical field transformations explored for massless scalars extend to massless fermions.

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Rutger Boels, Christian Schwinn. 2008-05-29. CSW rules for massive matter legs and glue loops. https://doi.org/10.1016/j.nuclphysbps.2008.09.094

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