We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Effective action of heterotic string theory at order α′<sup>2</sup>.
- Authors
Garousi, Mohammad R.
- Abstract
Upon examining the effective action of the heterotic string theory at order α′2, an inconsistency between the Chern-Simons coupling Ω2 and T-duality has been discovered. To address this issue, we introduce 60 parity-even independent geometrical couplings involving the B-field, metric, and dilation at the same order, each with arbitrary coefficients. To ensure the invariance of these couplings under T-duality, we consider the Miessner action for the couplings at order α′ and rigorously determine the coefficients of the 60 couplings in terms of the Chern-Simons coupling. Notably, it is found that the coefficients of the Riemann cubed terms must be zero, which aligns with the results of S-matrix calculations. Additionally, the parity odd couplings at order α′2 are obtained through T-duality. Overall, our analysis successfully resolves the inconsistency between the Chern-Simons coupling and T-duality, providing a more comprehensive understanding of the behavior of the heterotic string theory at order α′2.
- Publication
Journal of High Energy Physics, 2023, Vol 2023, Issue 9, p1
- ISSN
1126-6708
- Publication type
Article
- DOI
10.1007/JHEP09(2023)020