Results 61 to 70 of about 9,369 (182)
Gauge supergravity in D = 2 + 2
Journal of High Energy Physics, 2017 We present an action for chiral N = (1, 0) supergravity in 2 + 2 dimensions. The fields of the theory are organized into an OSp(1|4) connection supermatrix, and are given by the usual vierbein V a , spin connection ω ab , and Majorana gravitino ψ.
Leonardo Castellani
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de-Sitter vacua via consistent D-terms [PDF]
, 2005 We introduce a new mechanism for producing locally stable de-Sitter or Minkowski vacua, with spontaneously broken N=1 supersymmetry and no massless scalars, applicable to superstring and M-theory compactifications with fluxes. We illustrate the mechanism
Fabio Zwirner +3 more
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String Theory - From Physics to Metaphysics [PDF]
, 2006 Currently, string theory represents the only advanced approach to a unification of all interactions, including gravity. In spite of the more than thirty years of its existence it did not make any empirically testable predictions.
Hedrich, Reiner
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Mirror symmetry for G 2-manifolds: twisted connected sums and dual tops
Journal of High Energy Physics, 2017 Recently, at least 50 million of novel examples of compact G 2 holonomy manifolds have been constructed as twisted connected sums of asymptotically cylindrical Calabi-Yau threefolds.
Andreas P. Braun, Michele Del Zotto
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Uplifts of maximal supergravities and transitions to non-geometric vacua
Journal of High Energy Physics, 2019 We describe a new procedure to obtain consistent backgrounds that uplift vacua and deformations of various maximal gauged supergravities by taking a known solution and performing singular limits along the moduli space of the corresponding 4-dimensional ...
Gianguido Dall’Agata +2 more
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Yukawa Couplings in Heterotic Standard Models [PDF]
, 2006 In this paper, we present a formalism for computing the Yukawa couplings in heterotic standard models. This is accomplished by calculating the relevant triple products of cohomology groups, leading to terms proportional to Q*H*u, Q*Hbar*d, L*H*nu and L ...
+33 more
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Journal of High Energy Physics, 2020 We study the topological properties of Calabi-Yau threefold hypersurfaces at large h 1,1. We obtain two million threefolds X by triangulating polytopes from the Kreuzer-Skarke list, including all polytopes with 240 ≤ h 1,1 ≤ 491.
Mehmet Demirtas +3 more
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Towards a complete mass spectrum of type-IIB flux vacua at large complex structure
Journal of High Energy Physics, 2021 The large number of moduli fields arising in a generic string theory compactification makes a complete computation of the low energy effective theory infeasible.
Jose J. Blanco-Pillado +3 more
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From Minkowski to de Sitter in multifield no-scale models
Journal of High Energy Physics, 2019 We show the uniqueness of superpotentials leading to Minkowski vacua of single-field no-scale supergravity models, and the construction of dS/AdS solutions using pairs of these single-field Minkowski superpotentials.
John Ellis +4 more
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A note on O6 intersections in AdS flux vacua
Journal of High Energy PhysicsThe DGKT-CFI construction of AdS flux vacua in type IIA string theory has interesting features such as classical moduli stabilization and a parametric scale separation between the Hubble scale and the Kaluza-Klein scale.
Daniel Junghans
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