Results 101 to 110 of about 21,312,209 (267)
Supersymmetric dS4 solutions in D = 11 supergravity
Journal of High Energy Physics, 2022 The necessary and sufficient conditions for warped product dS4 solutions in D = 11 supergravity to be supersymmetric are determined. The Killing spinor is associated with two possible stabilizer groups, SU(3) and G2.
M. Di Gioia, J. Gutowski
doaj +1 more source
Modified Supergravity and Early Universe: the Meeting Point of Cosmology and High-Energy Physics [PDF]
Intern. Journ. Mod. Phys. A28 (2013) 1330021, 2012 We review the new theory of modified supergravity, dubbed F(\cal R) supergravity, and some of its recent applications to inflation and reheating in the early universe cosmology. The F(\cal R) supergravity is the N=1 locally supersymmetric extension of the f(R) gravity in four space-time dimensions.
arxiv +1 more source
Double Copy From Tensor Products of Metric BV■‐Algebras
Fortschritte der Physik, Volume 73, Issue 1-2, February 2025.Abstract Field theories with kinematic Lie algebras, such as field theories featuring color–kinematics duality, possess an underlying algebraic structure known as BV■‐algebra. If, additionally, matter fields are present, this structure is supplemented by a module for the BV■‐algebra.
Leron Borsten +5 more
wiley +1 more source
Non-Lorentzian IIB supergravity from a polynomial realization of SL(2, ℝ)
Journal of High Energy Physics, 2023 We derive the action and symmetries of the bosonic sector of non-Lorentzian IIB supergravity by taking the non-relativistic string limit. We find that the bosonic field content is extended by a Lagrange multiplier that implements a restriction on the ...
Eric A. Bergshoeff +4 more
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Geometric Relational Framework for General‐Relativistic Gauge Field Theories
Fortschritte der Physik, Volume 73, Issue 1-2, February 2025.Abstract It is recalled how relationality arises as the core insight of general‐relativistic gauge field theories from the articulation of the generalized hole and point‐coincidence arguments. Hence, a compelling case for a manifestly relational framework ensues naturally.
Jordan T. François, Lucrezia Ravera
wiley +1 more source
The two-loop five-particle amplitude in N $$ \mathcal{N} $$ = 8 supergravity
Journal of High Energy Physics, 2019 We compute for the first time the two-loop five-particle amplitude in N $$ \mathcal{N} $$ = 8 supergravity. Starting from the known integrand, we perform an integration-by-parts reduction and express the answer in terms of uniform weight master integrals.
Dmitry Chicherin +5 more
doaj +1 more source
Hybrid Inflation from Supergravity D Terms [PDF]
Phys.Lett. B387 (1996) 43-47, 1996 We argue that the mass of the inflaton can be much smaller than the Hubble constant in supergravity models in which inflation is driven by D--terms and not F--terms. We investigate a supergravity toy model which leads to hybrid inflation due to an anomalous D--term.
arxiv +1 more source
T‐Symmetry in String Geometry Theory
Advances in High Energy Physics, Volume 2025, Issue 1, 2025.String geometry theory is one of the candidates of nonperturbative formulation of string theory. In this paper, we have shown that dimensionally reduced string geometry theories have what we call T‐symmetry. In the case of the dimensional reduction in space‐like directions, the T‐symmetry transformation gives the T‐dual transformation between the Type ...
Matsuo Sato +2 more
wiley +1 more source
Demonic constraints on supergravity models [PDF]
Physics Letters B, 1985 Abstract We consider renormalization group scaling of the CP -violating phases of softly broken supersymmetry. We show that unless A ( M X is real or close to zero, these phases are naturally large in conflict with the experimental bound on the dipole electric moment of the neutron (DEMON) d n .
K. Enqvist +2 more
openaire +2 more sources
De sitter magnetic black hole dipole with a supersymmetric horizon
Journal of High Energy Physics, 2021 We find a new non BPS solution in N = 2 D = 4 gauged supergravity coupled to U(1) gauge fields and matter. It consists in a closed universe with two extremal black holes of equal size, surrounding two singularities.
Davide Astesiano, S.L. Cacciatori
doaj +1 more source