73 citations · 320 across the 18 of their papers we have counts for
18 papers
A new generic evolution for -essence dark energy with
John Kehayias, Robert J. Scherrer
We reexamine -essence dark energy models with a scalar field and a factorized Lagrangian, , with A value of the…
The Excess Radio Background and Fast Radio Transients
John Kehayias, Thomas W. Kephart, Thomas J. Weiler
In the last few years ARCADE 2, combined with older experiments, has detected an additional radio background, measured as a temperature and ranging in frequency from 22 MHz to 10 G…
Oscillating and Static Universes from a Single Barotropic Fluid
John Kehayias, Robert J. Scherrer
We consider cosmological solutions to general relativity with a single barotropic fluid, where the pressure is a general function of the density, . We derive conditions f…
Chaotic Inflation from Nonlinear Sigma Models in Supergravity
Simeon Hellerman, John Kehayias, Tsutomu T. Yanagida
We present a common solution to the puzzles of the light Higgs or quark masses and the need for a shift symmetry and large field values in high scale chaotic inflation. One way to…
A keV String Axion from High Scale Supersymmetry
Brian Henning, John Kehayias, Hitoshi Murayama +2
Various theoretical and experimental considerations motivate models with high scale supersymmetry breaking. While such models may be difficult to test in colliders, we propose look…
Emergent Lorentz Signature, Fermions, and the Standard Model
John Kehayias, Shinji Mukohyama, Jean-Philippe Uzan
This article investigates the construction of fermions and the formulation of the Standard Model of particle physics in a theory in which the Lorentz signature emerges from an unde…