(Non)-supersymmetric Marginal Deformations from Twistor String Theory

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dc.creatorGao, Peng
dc.creatorWu, Jun-Bao
dc.date2006-11-13
dc.date2008-03-06
dc.date.accessioned2026-07-07T11:43:58Z
dc.date.available2026-07-07T11:43:58Z
dc.descriptionThe tree-level amplitudes in $β$-deformed theory are studied from twistor string theory. We first show that a simple generalization of the proposal in hep-th/0410122 gives the correct results for all of the tree-level amplitudes to the first order of the deformation parameter $β$. Then we give a proposal to all orders of $β$ and show this matches the field theory. We also show the prescription using connected instantons and the prescription using disconnected instantons are equivalent in the deformed twistor string theory. The tree-level amplitudes in non-supersymmetric $γ$-deformed theory are also obtained in this framework. The tree-level purely gluonic amplitudes in theories with generic marginal deformations are also discussed in the twistor string theory side.
dc.description14 pages, no figures; v2, references added, typos corrected, minor changes, 15 pages; v3, a section on the tree-level purely gluonic amplitudes and conclusion section added, references added, typos corrected, 22 pages; v4, minor changes; v5 minor changes, published version
dc.identifierhttps://arxiv.org/abs/hep-th/0611128
dc.identifierhttp://arxiv.org/abs/hep-th/0611128
dc.identifierNucl.Phys.B798:184-197,2008
dc.identifierdoi:10.1016/j.nuclphysb.2008.01.027
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/201434
dc.subjectHigh Energy Physics - Theory
dc.title(Non)-supersymmetric Marginal Deformations from Twistor String Theory
dc.typetext

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