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MHV diagrams in twistor space and the twistor action

Abstract:

MHV diagrams give an efficient Feynman diagram-like formalism for calculating gauge theory scattering amplitudes on momentum space. Although they arise as the Feynman diagrams from an action on twistor space in an axial gauge, the main ingredients were previously expressed only in momentum space and momentum twistor space. Here we show how the formalism can be elegantly derived and expressed entirely in twistor space. This brings out the underlying superconformal invariance of the framework (...

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Journal:
Phys.Rev. D86: 065019, 2012 More from this journal
Publication date:
2011-03-07
Keywords:
Pubs id:
pubs:190405
UUID:
uuid:d0b5b6d3-6a49-4e5e-865e-eb9a8eb9b67c
Local pid:
pubs:190405
Source identifiers:
190405
Deposit date:
2013-02-20

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