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Type I supergravity effective action from pure spinor formalism
(Int School Advanced Studies, 2009-02-01)
Using the pure spinor formalism, we compute the tree-level correlation functions for three strings, one closed and two open, in N = 1 D = 10 superspace. Expanding the superfields in components, the respective terms of the ...
Relating the RNS and pure spinor formalisms for the superstring
(2001-12-01)
Recently, the superstring was covariantly quantized using the BRST-like operator Q = ∮ λαdα where λα is a pure spinor and dα are the fermionic Green-Schwarz constraints. By performing a field redefinition and a similarity ...
Type I supergravity effective action from pure spinor formalism
(Int School Advanced Studies, 2009-02-01)
Using the pure spinor formalism, we compute the tree-level correlation functions for three strings, one closed and two open, in N = 1 D = 10 superspace. Expanding the superfields in components, the respective terms of the ...
Relating the RNS and pure spinor formalisms for the superstring
(2001-12-01)
Recently, the superstring was covariantly quantized using the BRST-like operator Q = ∮ λαdα where λα is a pure spinor and dα are the fermionic Green-Schwarz constraints. By performing a field redefinition and a similarity ...
Supersymmetry breaking effects using the pure spinor formalism of the superstring
(Springer, 2014-06-23)
The SO(32) heterotic superstring on a Calabi-Yau manifold can spontaneously break supersymmetry at one-loop order even when it is unbroken at tree-level. It is known that calculating the supersymmetry-breaking effects in ...
Topological amplitude computations using the pure spinor formalism
(2019-12-01)
After constructing a simplified four-dimensional version of the b ghost, topological multiloop amplitudes in type II superstring theory compactified on a six-dimensional orbifold are computed using the non-minimal pure ...
Geometrical framework for picture changing operators in the pure spinor formalism
(Springer, 2020-09-16)
It is well known in NSR string theory, that vertex operators can be constructed in various pictures. Recently this was discussed in the context of pure spinor formalism. NSR picture changing operators have an elegant ...
One-loop superstring amplitude from integrals on pure spinors space
(Springer, 2009-12-01)
In the Type II superstring the 4-point function for massless NS-NS bosons at one-loop is well known [1, 14]. The overall constant factor in this amplitude is very important because it needs to satisfy the unitarity and ...