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The generalized Bergshoeff-de Roo identification
(Springer, 2018-11)
There are two main approaches to duality covariant first order higher derivative corrections to the heterotic string, one extending the duality structure and the other deforming the gauge transformations. In this paper we ...
Chameleons on the racetrack
(2013-09-30)
We modify the ansatz for embedding chameleon scalars in string theory proposed in [1] by considering a racetrack superpotential with two KKLT-type exponentials e ia instead of one. This satisfies all experimental constraints, ...
The cohomology of superspace, pure spinors and invariant integrals
(Int School Advanced Studies, 2008-06-01)
The superform construction of supersymmetric invariants, which consists of integrating the top component of a closed superform over spacetime, is reviewed. The cohomological methods necessary for the analysis of closed ...
Chameleons on the racetrack
(2013-09-30)
We modify the ansatz for embedding chameleon scalars in string theory proposed in [1] by considering a racetrack superpotential with two KKLT-type exponentials e ia instead of one. This satisfies all experimental constraints, ...
Simplified D = 11 pure spinor b ghost
(2017-07-01)
A b-ghost was constructed for the D = 11 non-minimal pure spinor superparticle by requiring that (Q, b) = T where Q= Λ αDα+ RαW¯ α is the usual non-minimal pure spinor BRST operator. As was done for the D = 10 b-ghost, we ...
The cohomology of superspace, pure spinors and invariant integrals
(Int School Advanced Studies, 2008-06-01)
The superform construction of supersymmetric invariants, which consists of integrating the top component of a closed superform over spacetime, is reviewed. The cohomological methods necessary for the analysis of closed ...
ELKO SPINOR FIELDS: LAGRANGIANS FOR GRAVITY DERIVED FROM SUPERGRAVITY
(World Scientific Publ Co Pte Ltd, 2009-05-01)
Dual-helicity eigenspinors of the charge conjugation operator (ELKO spinor fields) belong - together with Majorana spinor fields - to a wider class of spinor fields, the so-called flagpole spinor fields, corresponding to ...
ELKO SPINOR FIELDS: LAGRANGIANS FOR GRAVITY DERIVED FROM SUPERGRAVITY
(World Scientific Publ Co Pte Ltd, 2009-05-01)
Dual-helicity eigenspinors of the charge conjugation operator (ELKO spinor fields) belong - together with Majorana spinor fields - to a wider class of spinor fields, the so-called flagpole spinor fields, corresponding to ...