Conformal Supergravity in Twistor-String Theory
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 use the twistor-string theory to compute some tree level scattering amplitudes with supergravitons. 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.
- Publication:
-
Journal of High Energy Physics
- Pub Date:
- August 2004
- DOI:
- 10.1088/1126-6708/2004/08/009
- arXiv:
- arXiv:hep-th/0406051
- Bibcode:
- 2004JHEP...08..009B
- Keywords:
-
- Superstrings and Heterotic Strings Topological Strings Classical Theories of Gravity;
- High Energy Physics - Theory
- E-Print:
- 43 pages harvmac tex, added footnote to introduction