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Twistor string as tensionless superstring

AuthorsBandos, Igor A.; Azcárraga, José A. de ; Miquel Espanya, César
Supersymmetric gauge theories
MHV amplitudes
Issue Date11-May-2007
PublisherJohn Wiley & Sons
CitationFortschritte der Physik - Progress of Physics 55(5-7): 573-578 (2007)
AbstractWe give a brief review of the twistor string approach to supersymmetric Yang-Mills theories with an emphasis on the different formulations of (super)string models in supertwistor space and their superspace form. We discuss the classical equivalence among the Siegel closed twistor string and the Lorentz harmonics formulation of the (N = 4) tensionless superstring, and notice the possible relation of the twistor string to the D = 10 Green-Schwarz superstring action, as well as to models in the enlarged, tensorial superspaces that are relevant in higher spin theories.
Description6 pages.-- PACS nrs.: 11.30.Pb, 11.25.-w, 11.10.Kk, 12.60.Jv.-- ISI Article Identifier: 000247103400009.-- ArXiv pre-print available at: http://arxiv.org/abs/hep-th/0702133
Talk delivered at the Workshop of the RTN network 'Constituents, fundamental forces and Symmetries of the Universe', Napoli Oct 9-13, 2006.-- Printed version published in Jul 2007.
Publisher version (URL)http://dx.doi.org/10.1002/prop.200610340
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