Results 61 to 70 of about 462 (74)
2-Group Symmetries of 6D Little String Theories and T-Duality. [PDF]
Ann Henri Poincare, 2021 Del Zotto M, Ohmori K.
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Heterotic sigma models on T 8 and the Borcherds automorphic form Φ12
Journal of High Energy Physics, 2017 We consider the spectrum of BPS states of the heterotic sigma model with (0, 8) supersymmetry and T 8 target, as well as its second-quantized counterpart.
Sarah M. Harrison +4 more
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T-duality invariant effective actions at orders α′, α′2
Journal of High Energy Physics, 2018 We use compatibility of the D-dimensional effective actions for diagonal metric and for dilaton with the T-duality when theory is compactified on a circle, to find the D-dimensional couplings of curvatures and dilaton as well as the higher derivative ...
Hamid Razaghian, Mohammad R. Garousi
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Upper bound on the Atiyah-Singer index from tadpole cancellation
Journal of High Energy PhysicsWe propose an upper bound on the Atiyah-Singer index in the effective action of string theory. For E 8 × E 8 ′ $$ {E}_8^{\prime } $$ and SO(32) heterotic string theories on smooth Calabi-Yau threefolds with line bundles, we find that the tadpole ...
Keiya Ishiguro +4 more
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Heterotic and bosonic string amplitudes via field theory
Journal of High Energy Physics, 2018 Previous work has shown that massless tree amplitudes of the type I and IIA/B superstrings can be dramatically simplified by expressing them as double copies between field-theory amplitudes and scalar disk/sphere integrals, the latter containing all the ...
Thales Azevedo +3 more
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Towards the underlying gauge theory of the pure spinor superstring
Journal of High Energy Physics, 2019 Previous attempts to determine the worldsheet origin of the pure spinor formalism were not completely successful, but introduced important concepts that seem to be connected to its fundamental structure, e.g., emergent supersymmetry and the role of ...
Renann Lipinski Jusinskas
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Inverse of the string theory KLT kernel
Journal of High Energy Physics, 2017 The field theory Kawai-Lewellen-Tye (KLT) kernel, which relates scattering amplitudes of gravitons and gluons, turns out to be the inverse of a matrix whose components are bi-adjoint scalar partial amplitudes.
Sebastian Mizera
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Rounding out the story of higher derivative consistent truncations
Journal of High Energy PhysicsAt the two-derivative order, the group manifold reduction of heterotic supergravity on S 3 results in a half-maximal 7D gauged supergravity coupled to three vector multiplets, and a further truncation can be taken to remove the vector multiplets.
James T. Liu, Robert J. Saskowski
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Superstring amplitudes from BCJ numerators at one loop
Journal of High Energy PhysicsWe find a direct map that determines moduli-space integrands for one-loop superstring amplitudes in terms of field-theory loop integrands in the BCJ form. The latter can be computed using efficient unitarity methods, so our map provides an alternative to
Yvonne Geyer +3 more
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The physical moduli of heterotic G 2 string compactifications
Journal of High Energy PhysicsIn previous works, an operator was developed for heterotic compactifications on ℝ2,1 × G 2 and AdS 3 × G 2, which preserves N = 1 d = 3 supersymmetry and whose kernel is related to the moduli of the compactification. The operator is described in terms of
Jock McOrist +2 more
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