IAFE   05512
INSTITUTO DE ASTRONOMIA Y FISICA DEL ESPACIO
Unidad Ejecutora - UE
artículos
Título:
Supersymmetry, T-duality and heterotic α′-corrections
Autor/es:
CARMEN NUÑEZ; ERIC LESCANO; ALEJANDRO RODRIGUEZ
Revista:
JOURNAL OF HIGH ENERGY PHYSICS - (Online)
Editorial:
Springer
Referencias:
Año: 2021
ISSN:
1029-8479
Resumen:
Higher-derivative interactions and transformation rules of the fields in the effectivefield theories of the massless string states are strongly constrained by space-time symmetries and dualities. Here we use an exact formulation of ten dimensional N = 1 supergravity coupled to Yang-Mills with manifest T-duality symmetry to construct the firstorder α′-corrections of the heterotic string effective action. The theory contains a supersymmetric and T-duality covariant generalization of the Green-Schwarz mechanism thatdetermines the modifications to the leading order supersymmetry transformation rules ofthe fields. We compute the resulting field-dependent deformations of the coefficients inthe supersymmetry algebra and construct the invariant action, with up to and includingfour-derivative terms of all the massless bosonic and fermionic fields of the heterotic stringspectrum.