Conformal Supergravity in Twistor-String Theory | Zendy

Nathan Berkovits | Zendy; Edward Witten | Zendy

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Conformal Supergravity in Twistor-String Theory

Author(s) -

Nathan Berkovits,

Edward Witten

Publication year - 2004

Publication title -

journal of high energy physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.998

H-Index - 261

eISSN - 1126-6708

pISSN - 1029-8479

DOI - 10.1088/1126-6708/2004/08/009

Subject(s) - twistor theory , supergravity , physics , mathematical physics , string (physics) , higher dimensional supergravity , quantum electrodynamics , conformal map , heterotic string theory , conformal field theory , scattering amplitude , string duality , string theory , supersymmetry , theoretical physics , particle physics , amplitude , quantum mechanics , mathematics , relationship between string theory and quantum field theory , mathematical analysis , quantum , quantum gravity

Conformal supergravity arises in presently known formulations oftwistor-string theory either via closed strings or via gauge-singlet openstrings. We explore this sector of twistor-string theory, relating the relevantstring modes to the particles and fields of conformal supergravity. We also usethe twistor-string theory to compute some tree level scattering amplitudes withsupergravitons, and compare to expectations from conformal supergravity. Sincethe supergravitons interact with the same coupling constant as the Yang-Millsfields, conformal supergravity states will contribute to loop amplitudes ofYang-Mills gluons in these theories. Those loop amplitudes will therefore notcoincide with the loop amplitudes of pure super Yang-Mills theory.Comment: 43 pages harvmac tex, added footnote to introductio

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