Results 71 to 80 of about 1,194 (150)

A Cosmological Upper Bound on Superpartner Masses [PDF]

open access: yesarXiv, 2013
If some superpartners were in thermal equilibrium in the early universe, and if the lightest superpartner is a cosmologically stable gravitino, then there is a powerful upper bound on the scale of the superpartner masses. Typically the bound is below tens of TeV, often much lower, and has similar parametrics to the WIMP miracle.
arxiv  

Comments on nonlinear sigma models coupled to supergravity

open access: yesPhysics Letters B, 2017
N=1, D=4 nonlinear sigma models, parametrized by chiral superfields, usually describe Kählerian geometries, provided that Einstein frame supergravity is used.
Sergio Ferrara, Massimo Porrati
doaj  

Supersymmetric inflation from the fifth dimension

open access: yesJournal of High Energy Physics, 2019
We develop a supersymmetric bi-axion model of high-scale inflation coupled to supergravity, in which the axionic structure originates from, and is protected by, gauge symmetry in an extra dimension. While local supersymmetry (SUSY) is necessarily Higgsed
Kaustubh Deshpande, Raman Sundrum
doaj   +1 more source

Charting generalized supersoft supersymmetry

open access: yesJournal of High Energy Physics, 2018
Without any shred of evidence for new physics from LHC, the last hiding spots of natural electroweak supersymmetry seem to lie either in compressed spectra or in spectra where scalars are suppressed with respect to the gauginos.
Sabyasachi Chakraborty   +2 more
doaj   +1 more source

Is the World Supersymmetric? Do We Already Know? [PDF]

open access: yesarXiv, 1993
In addition to the very good theoretical motivations for supersymmetry, there are now at least nine phenomenological indications that nature is supersymmetric. All are indirect, so more is better. They are enumerated here. Some discussion is also given of models, of when and where superpartners might be directly detected, and of why the scale of ...
arxiv  

On polarized scattering equations for superamplitudes of 11D supergravity and ambitwistor superstring

open access: yesJournal of High Energy Physics, 2019
We revisited the formalism of 110 polarized scattering equation by Geyer and Mason from the perspective of spinor frame approach and spinor moving frame formulation of the 110 ambitwistor superstring action.
Igor Bandos
doaj   +1 more source

SUSY Hidden in the Continuum [PDF]

open access: yes, 2011
We study models where the superpartners of the ordinary particles have continuous spectra rather than being discrete states, which can occur when the supersymmetric standard model is coupled to an approximately conformal sector. We show that when superpartners that are well into the continuum are produced at a collider they tend to have long decay ...
arxiv   +1 more source

Left-Right Asymetry From Supersymmetry in Polarized Møller Scattering [PDF]

open access: yesarXiv, 1995
We calculate the leading contribution to the left-right asymmetry in polarized M{\o}ller scattering from the superpartners in the Minimal Supersymmetric Standard Model (MSSM), using an effective lagrangian approach. We determine the maximum asymmetry that can result from the superpartners in the MSSM under different scenarios, and discuss the ...
arxiv  

A global fit of LEP/SLC data with light superpartners [PDF]

open access: green, 1995
Gordon Kane   +2 more
openalex   +1 more source

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