Publication details
String theory at order α′2 and the generalized Bergshoeff-de Roo identification
| Authors | |
|---|---|
| Year of publication | 2021 |
| Type | Article in Periodical |
| Magazine / Source | Journal of High Energy Physics |
| MU Faculty or unit | |
| Citation | |
| Web | https://link.springer.com/article/10.1007/JHEP11(2021)186 |
| Doi | http://dx.doi.org/10.1007/JHEP11(2021)186 |
| Keywords | Bosonic Strings; Global Symmetries; String Duality; Superstrings and Heterotic Strings |
| Description | It has been shown by Marques and Nunez that the first ?'-correction to the bosonic and heterotic string can be captured in the O(D, D) covariant formalism of Double Field Theory via a certain two-parameter deformation of the double Lorentz transformations. This deformation in turn leads to an infinite tower of ?'-corrections and it has been suggested that they can be captured by a generalization of the Bergshoeff-de Roo identification between Lorentz and gauge degrees of freedom in an extended DFT formalism. Here we provide strong evidence that this indeed gives the correct ?'2-corrections to the bosonic and heterotic string by showing that it leads to a cubic Riemann term for the former but not for the latter, in agreement with the known structure of these corrections including the coefficient of Riemann cubed. |