Conformal supergravity in twistor-string theory
Jun, 200443 pages
Published in:
- JHEP 08 (2004) 009
e-Print:
- hep-th/0406051 [hep-th]
Report number:
- IFT-P-019-2004
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Abstract:
Conformal supergravity arises in presently known formulations of twistor-string theory either via closed strings or via gauge-singlet open strings. We explore this sector of twistor-string theory, relating the relevant string modes to the particles and fields of conformal supergravity. We also use the twistor-string theory to compute some tree level scattering amplitudes with supergravitons, and compare to expectations from conformal supergravity. Since the supergravitons interact with the same coupling constant as the Yang-Mills fields, conformal supergravity states will contribute to loop amplitudes of Yang-Mills gluons in these theories. Those loop amplitudes will therefore not coincide with the loop amplitudes of pure super Yang-Mills theory.- supergravity: conformal
- twistor
- string model
- string: closed
- string: open
- supersymmetry: superspace
- scattering amplitude: higher-order
- graviton
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