Results 21 to 30 of about 21,105,413 (272)

Classical Yang-Baxter equation from β-supergravity

Journal of High Energy Physics, 2019
Yang-Baxter deformations of superstring σ-models have recently inspired a supergravity solution generating technique. Using the open/closed string map and a Killing bi-vector as a deformation parameter, new solutions can be built, such that the ...
Ilya Bakhmatov, Edvard T. Musaev
doaj   +3 more sources

Reach of Fermilab Tevatron upgrades for SU(5) supergravity models with nonuniversal gaugino masses [PDF]

, 2000
We explore the reach of luminosity upgrades of the Fermilab Tevatron collider for SU(5) supergravity models in which non-universal GUT-scale gaugino masses arise via a vacuum expectation value for the auxiliary component of a superfield that transforms ...
Greg W. Anderson, Howard Baer, Chih‐Hao Chen, Pamela Quintana, Xerxes Tata   +4 more
openalex   +3 more sources

Old-minimal supergravity models of inflation [PDF]

Journal of High Energy Physics, 2013
A bstractWe study three types of the old-minimal higher-derivative supergravity theories extending the f (R) gravity, towards their use for the inflationary model building in supergravity, by using both superfields and their field components.
S. Ketov, T. Terada
semanticscholar   +4 more sources

N=2 supergravity models with stable de Sitter vacua. [PDF]

, 2003
In this paper, we shall review the construction of N = 2 supergravity models exhibiting stable de Sitter vacua. These solutions represent the first instance of stable backgrounds with positive cosmological constant in theframework of extended ...
P. Fré, M. Trigiante, A. Proeyen
semanticscholar   +4 more sources

Double-copy towards supergravity inflation with α-attractor models [PDF]

Journal of High Energy Physics, 2022
Key to the simplicity of supergravity α -attractor models of inflation are Volkov-Akulov fermions, often in the form of nilpotent superfields. Here we explore the possibility of using the double-copy to construct theories of Dirac-Born-Infeld-Volkov ...
J. J. Carrasco, Matthew Lewandowski, Nicolas H. Pavao   +2 more
semanticscholar   +1 more source

Testing primordial black holes as dark matter in supergravity from gravitational waves

Physics Letters B, 2021
We explore the Gravitational Waves (GW) phenomenology of a simple class of supergravity models that can explain and unify inflation and Primordial Black Holes (PBH) as Dark Matter (DM).
Yermek Aldabergenov, Andrea Addazi, Sergei V. Ketov   +2 more
doaj   +1 more source

Supergravity EFTs and swampland constraints [PDF]

Proceedings of Corfu Summer Institute 2022 "School and Workshops on Elementary Particle Physics and Gravity" — PoS(CORFU2022), 2023
In these proceedings, we review recent progress in analyzing the behavior of lower-dimensional supergravity theories when combined with swampland conjectures. We show that within supergravity the effectiveness and usefulness of swampland conjectures gets
N. Cribiori, F. Farakos
semanticscholar   +1 more source

Supergravities and branes from Hilbert-Poincaré series

Journal of High Energy Physics, 2023
The Molien-Weyl integral formula and the Hilbert-Poincaré series have proven to be powerful mathematical tools in relation to gauge theories, allowing to count the number of gauge invariant operators.
C. A. Cremonini, P. A. Grassi, R. Noris, L. Ravera   +3 more
doaj   +1 more source

AdS superprojectors

Journal of High Energy Physics, 2021
Within the framework of N $$ \mathcal{N} $$ = 1 anti-de Sitter (AdS) supersymmetry in four dimensions, we derive superspin projection operators (or superprojectors). For a tensor superfield V α m α ⋅ n ≔ V α 1 … αm α ⋅ 1 … α ⋅ n $$ {\mathfrak{V}}_{\alpha
E. I. Buchbinder, D. Hutchings, S. M. Kuzenko, M. Ponds   +3 more
doaj   +1 more source

Jackiw-Teitelboim supergravity, minimal strings, and matrix models

, 2021
The author studies a family of two-dimensional Jackiw--Teitelboim (JT) supergravites, and, by using string theory techniques, he gives them a complete definition to all orders in the topological expansion.
Clifford V. Johnson
semanticscholar   +1 more source