Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2008-09-26
JHEP0812:002,2008
Physics
High Energy Physics
High Energy Physics - Theory
0+36 pages, latex, V2: substantial changes in abstract, introduction. Section 4 and section 5 swapped. Argument in section 4 (
Scientific paper
10.1088/1126-6708/2008/12/002
We will discuss two inequivalent generalizations of the standard (2,0) supergravity action gr-qc/9501018 to include gravitational Chern-Simons term. One is in the first order formalism where we treat \omega_{M}^{ab} as independent and the other is in the second order formalism where \omega_{M}^{ab} is determined in terms of other fields via a standard constraint equation. The two theories have different equations of motion and the solutions to the equations of motion of the first order theory spans only a subset of those of the second order theory. We will be interested in computing the boundary S-matrix, describing correlation functions in a dual conformal field theory, in this sector and hence we use the equations of motion coming out of the first order theory. We restrict ourselves to the gauge+fermionic sector of the theory to compute the boundary S-matrix. We will also look at the effect of higher derivative terms on the boundary S-matrix obtained using the standard supergravity action.
Kaura Payal
Sahoo Bindusar
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