From the 1 of 5 linked papers with an AI index.
1 citations · 1 across the 3 of their papers we have counts for
5 papers
Rolling Galileons: Evolving Braiding Strength for Viable Dark Energy
James Hallam, Krishna Naidoo, Sergi Sirera +1
Motivated by growing observational indications that dark energy may be dynamical, we introduce Rolling Galileon gravity: a minimal shift-symmetry-breaking extension of the cubic Ga…
Constraints on Horndeski Gravity with Phantom Crossing
Krishna Naidoo, James Hallam, Tessa Baker +1
The paper introduces Asymptotic Cubic Galileon (ACG) models, a subclass of Horndeski scalar‑tensor theories that can cross the phantom divide (w = –1) while remaining minimally cou…
Bimodular Gravity: Vacuum Evolution with a Frame-Dependent Phantom Crossing
James Hallam, João Magueijo
Unimodular gravity recasts the cosmological constant as an integration constant, fixed by a constraint on the volume element rather than chosen in the action. We ask what becomes o…
Imaging neutrons with a position-sensitive monolithic CLYC detector
J. Lerendegui-Marco, G. Cisterna, J. Hallam +9
In this work, we have developed and characterized a position-sensitive CLYC detector that acts as the neutron imaging layer and -ray Compton scatterer of the novel dual \g-ray…
First experimental results and optimization study of the portable neutron-gamma imager GN-Vision
Jorge Lerendegui-Marco, James Hallam, Gastón Cisterna +9
GN-Vision is a compact, dual-modality imaging device designed to simultaneously localize the spatial origin of -ray and slow neutron sources, with potential applications in nuc…