Results 11 to 20 of about 1,132 (189)
Baryogenesis in supergravity inflationary models [PDF]
Physics Letters B, 1985 Realistic N=1 supergravity theories with a gravitino mass of order 1 TeV require a period of inflation to dilute the gravitino abundance. Moreover, if the gravitino is unstable the reheat temperature is bounded to be no greater than O(108 GeV). We show that such models may still have acceptable rates of baryosynthesis and discuss possible mechanisms.
Department of Theoretical Physics Keble Road, Oxford OX1 3NP, UK ( host institution ) +6 more
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Component decompositions and adynkra libraries for supermultiplets in lower dimensional superspaces
Journal of High Energy Physics, 2021 We present Adynkra Libraries that can be used to explore the embedding of multiplets of component field (whether on-shell or partial on-shell) within Salam-Strathdee superfields for theories in dimension nine through four.
S. James Gates +2 more
doaj +1 more source
WMAP and supergravity inflationary models [PDF]
Physical Review D, 2004 7 pages, 4 eps figures, references corrected, version to appear in Phys.
Bento, M. C. +2 more
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Symmetries of supergravity backgrounds and supersymmetric field theory
Journal of High Energy Physics, 2020 In four spacetime dimensions, all N $$ \mathcal{N} $$ = 1 supergravity-matter systems can be formulated in the so-called U(1) superspace proposed by Howe in 1981.
Sergei M. Kuzenko +1 more
doaj +1 more source
SUPERGRAVITY UNIFIED MODELS [PDF]
, 1998 The development of supergravity unified models and their implications for current and future experiments are discussed.
Arnowitt, R., Nath, Pran
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AdS (super)projectors in three dimensions and partial masslessness
Journal of High Energy Physics, 2021 We derive the transverse projection operators for fields with arbitrary integer and half-integer spin on three-dimensional anti-de Sitter space, AdS3. The projectors are constructed in terms of the quadratic Casimir operators of the isometry group SO(2 ...
Daniel Hutchings +2 more
doaj +1 more source
Scrutinizing supergravity models through neutrino telescopes [PDF]
Physical Review D, 1994 Galactic halo neutralinos ($ $) captured by the Sun or Earth produce high-energy neutrinos as end-products of various annihilation modes. These neutrinos can travel from the Sun or Earth cores to the neighborhood of underground detectors (``neutrino telescopes") where they can interact and produce upwardly-moving muons. We compute these muon fluxes in
Gandhi, Raj +4 more
openaire +3 more sources
New duality-invariant models for nonlinear supersymmetric electrodynamics
Journal of High Energy Physics, 2023 We propose a new family of U(1) duality-invariant models for nonlinear N $$ \mathcal{N} $$ = 1 supersymmetric electrodynamics coupled to supergravity.
Sergei M. Kuzenko, Jake C. Stirling
doaj +1 more source
Chromo-natural inflation in Supergravity
Physics Letters B, 2018 We present supergravity realizations of chromo-natural inflationary models. We show that by using superpotentials with “imaginary” holomorphic functions of the inflaton one can obtain effective theories of inflation that are also consistent truncations ...
Gianguido Dall'Agata
doaj +1 more source
Journal of High Energy Physics, 2020 For the first time in the physics literature, the Lorentz representations of all 2,147,483,648 bosonic degrees of freedom and 2,147,483,648 fermionic degrees of freedom in an unconstrained eleven dimensional scalar superfield are presented.
S. James Gates +2 more
doaj +1 more source