Results 11 to 20 of about 134,366 (253)
The Generalized Green-Schwarz Mechanism for Type IIB Orientifolds with D3- and D7-Branes [PDF]
, 2009 In this paper, we work out in detail the tadpole cancellation conditions as well as the generalized Green-Schwarz mechanism for type IIB orientifold compactifications with D3- and D7-branes.
A. Collinucci +36 more
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Green-Schwarz Mechanism in Heterotic (2,0) Gauged Linear Sigma Models: Torsion and NS5 Branes [PDF]
, 2011 Heterotic string compactifications can be conveniently described in the language of (2,0) gauged linear sigma models (GLSMs). Such models allow for Fayet-Iliopoulos (FI)-terms, which can be interpreted as Kahler parameters and axions on the target space ...
Blaszczyk, Michael +2 more
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Heterotic Kerr-Schild Double Field Theory and its double Yang-Mills formulation
Journal of High Energy Physics, 2022 We present a formulation of heterotic Double Field Theory (DFT), where the fundamental fields are in O(D, D) representations. The theory is obtained splitting an O(D, D + K ) duality invariant DFT.
Eric Lescano, Sourav Roychowdhury
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The generalized Bergshoeff-de Roo identification. Part II
Journal of High Energy Physics, 2021 We recently introduced a T-duality covariant mechanism to compute all-order higher-derivative interactions in the heterotic string. Here we extend the formalism to account for a two-parameter family of corrections that also include the bosonic string and
W. Baron, D. Marques
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Higher-group structure in lattice Abelian gauge theory under instanton-sum modification
European Physical Journal C: Particles and Fields, 2023 We consider the U(1) gauge theory on a four-dimensional torus, where the instanton number is restricted to an integral multiple of p. This theory possesses the nontrivial higher-group structure, which can be regarded as a generalization of the Green ...
Naoto Kan +3 more
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Supersymmetry, T-duality and heterotic α′-corrections
Journal of High Energy Physics, 2021 Higher-derivative interactions and transformation rules of the fields in the effective field 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 $$ \
Eric Lescano +2 more
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Higher-derivative heterotic Double Field Theory and classical double copy
Journal of High Energy Physics, 2021 The generalized Kerr-Schild ansatz (GKSA) is a powerful tool for constructing exact solutions in Double Field Theory (DFT). In this paper we focus in the heterotic formulation of DFT, considering up to four-derivative terms in the action principle, while
Eric Lescano, Jesús A. Rodríguez
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Torsion in String-Inspired Cosmologies and the Universe Dark Sector
Universe, 2021 Several aspects of torsion in string-inspired cosmologies are reviewed. In particular, its connection with fundamental, string-model independent, axion fields associated with the massless gravitational multiplet of the string are discussed.
Nick E. Mavromatos
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Mass Hierarchies from Anomalies: a Peek Behind the Planck Curtain [PDF]
, 1996 The masses of quarks and leptons suggest a strong hierarchical structure. We argue that their patterns can be reproduced through the introduction of a new Abelian symmetry. The data suggest that this symmetry is anomalous.
Ramond, P.
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Minimal anomalous U(1) theories and collider phenomenology
Journal of High Energy Physics, 2018 We study the collider phenomenology of a neutral gauge boson Z ′ arising in minimal but anomalous U(1) extensions of the Standard Model (SM). To retain gauge invariance of physical observables, we consider cancellation of gauge anomalies through the ...
Andreas Ekstedt +4 more
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