Gravity on-shell diagrams
Journal Article
·
· Journal of High Energy Physics (Online)
- California Inst. of Technology (CalTech), Pasadena, CA (United States)
- Univ. of California, Davis, CA (United States)
We study on-shell diagrams for gravity theories with any number of super-symmetries and find a compact Grassmannian formula in terms of edge variables of the graphs. Unlike in gauge theory where the analogous form involves only d log-factors, in gravity there is a non-trivial numerator as well as higher degree poles in the edge variables. Based on the structure of the Grassmannian formula for $$\mathcal{N}$$ = 8 supergravity we conjecture that gravity loop amplitudes also possess similar properties. In particular, we find that there are only logarithmic singularities on cuts with finite loop momentum and that poles at infinity are present, in complete agreement with the conjecture presented in[1].
- Research Organization:
- California Institute of Technology (CalTech), Pasadena, CA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), High Energy Physics (HEP)
- Grant/Contract Number:
- SC0011632
- OSTI ID:
- 1360112
- Alternate ID(s):
- OSTI ID: 1596445
- Journal Information:
- Journal of High Energy Physics (Online), Vol. 2016, Issue 11; ISSN 1029-8479
- Publisher:
- Springer BerlinCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Cited by: 33 works
Citation information provided by
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Web of Science
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