Physical Review D, ( ISI ), Volume (88), No (127), Year (2013-7) , Pages (1-3)

Title : ( Generalized Riemann curvature corrections to type II supergravity )

Authors: Mohammad Reza Garousi ,

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We observe that the replacement of the Riemann curvature with the generalized Riemann curvature in the corrections to type-II supergravity at order 03, which are in terms of the contractions of four Riemann curvatures R4, is not fully consistent with the S-matrix elements in the superstring theory. In particular, they produce nonzero S-matrix elements for an odd number of B-field strengths which are not consistent with the string theory results. Using the consistency of the couplings with the linear T duality as a guiding principle, we consider all T-duality-invariant couplings and fix their coefficients by requiring them to be consistent with the S-matrix elements. The new Lagrangian density is then equivalent to the placement of the generalized Riemann curvature into the expression t8t8R4.

Keywords

, Effective action, Generalized Riemann curvature,
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@article{paperid:1035674,
author = {Garousi, Mohammad Reza},
title = {Generalized Riemann curvature corrections to type II supergravity},
journal = {Physical Review D},
year = {2013},
volume = {88},
number = {127},
month = {July},
issn = {1550-7998},
pages = {1--3},
numpages = {2},
keywords = {Effective action; Generalized Riemann curvature; T-duality},
}

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%0 Journal Article
%T Generalized Riemann curvature corrections to type II supergravity
%A Garousi, Mohammad Reza
%J Physical Review D
%@ 1550-7998
%D 2013

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