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Post-Inflationary Gravitino Production Revisited
John Ellis, Marcos A. G. Garcia, Dimitri V. Nanopoulos +2
We revisit gravitino production following inflation. As a first step, we review the standard calculation of gravitino production in the thermal plasma formed at the end of post-inf…
On the Interpretation of a Possible GeV Particle Decaying into
John Ellis, Sebastian A. R. Ellis, Jérémie Quevillon +2
We consider interpretations of the recent reports by the CMS and ATLAS collaborations of a possible state decaying into final states. We foc…
The Universal One-Loop Effective Action
Aleksandra Drozd, John Ellis, Jérémie Quevillon +1
We present the universal one-loop effective action for all operators of dimension up to six obtained by integrating out massive, non-degenerate multiplets. Our general expression m…
Complete Normal Ordering 1: Foundations
John Ellis, Nick E. Mavromatos, Dimitri P. Skliros
We introduce a new prescription for quantising scalar field theories perturbatively around a true minimum of the full quantum effective action, which is to `complete normal order'…
Information Retention by Stringy Black Holes
John Ellis, Nick E. Mavromatos, D. V. Nanopoulos
Building upon our previous work on two-dimensional stringy black holes and its extension to spherically-symmetric four-dimensional stringy black holes, we show how the latter retai…
Prospects for Supersymmetry at the LHC & Beyond
John Ellis
Run 1 of the LHC has provided three new motivations for supersymmetry: the need to stabilize the electroweak vacuum, the mass of the Higgs boson, and the fact that its couplings ar…