3 citations · 3 across the 18 of their papers we have counts for
5 papers · 1 filter
Effects of Radiative Corrections on Starobinsky Inflation
John Ellis, Tony Gherghetta, Kunio Kaneta +2
We analyze radiative corrections to the Starobinsky model of inflation arising from self-interactions of the inflaton, and from its Yukawa couplings, , to matter fermions, and d…
Supergravity from the Bottom Up
Tony Gherghetta, Wenqi Ke
We employ on-shell methods to construct scattering amplitudes and derive effective theories involving massive spin-3/2 fermions interacting with spin 0, 1 and 2 bosons. The four-po…
On-shell recursion relations for higher-spin Compton amplitudes
Yohei Ema, Ting Gao, Wenqi Ke +2
We recursively construct tree-level electromagnetic and gravitational Compton amplitudes of higher-spin massive particles by the all-line transverse momentum shift. With three-poin…
How Accidental was Inflation?
Ignatios Antoniadis, John Ellis, Wenqi Ke +2
Data on the cosmic microwave background (CMB) are discriminating between different models of inflation, disfavoring simple monomial potentials whilst being consistent with models w…
Scalar Field Fluctuations and the Production of Dark Matter
Marcos A. G. Garcia, Wenqi Ke, Yann Mambrini +2
One of the simplest possible candidates for dark matter is a stable scalar singlet beyond the Standard Model. If its mass is below the Hubble scale during inflation, long-wavelengt…