Complete equivalence between gluon tree amplitudes in twistor string theory and in gauge theory

被引:0
作者
Louise Dolan
Peter Goddard
机构
[1] University of North Carolina,Department of Physics
[2] Institute for Advanced Study,undefined
来源
Journal of High Energy Physics | / 2012卷
关键词
Scattering Amplitudes; Conformal Field Models in String Theory; Supersymmetric gauge theory; Extended Supersymmetry;
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摘要
The gluon tree amplitudes of open twistor string theory, defined as contour integrals over the ACCK link variables, are shown to satisfy the BCFW relations, thus confirming that they coincide with the corresponding amplitudes in gauge field theory. In this approach, the integration contours are specified as encircling the zeros of certain constraint functions that force the appropriate relation between the link variables and the twistor string world-sheet variables. To do this, methods for calculating the tree amplitudes using link variables are developed further including diagrammatic methods for organizing and performing the calculations.
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