activity
20052018
most citedA facility to Search for Hidden Particles at the CERN SPS: the SHiP physics case

782 citations · 1.8k across the 24 of their papers we have counts for

collaborators

24 papers

hep-ph2018★ 11 cited

Electroweak Multiplet Dark Matter at Future Lepton Colliders

Kenji Kadota, Andrew Spray

An electroweak multiplet stable due to a new global symmetry is a simple and well-motivated candidate for thermal dark matter. We study how direct searches at a future linear colli…

hep-ph2018★ 11 cited

Low-Temperature Enhancement of Semi-annihilation and the AMS-02 Positron Anomaly

Yi Cai, Andrew Spray

Semi-annihilation is a generic feature of particle dark matter that is most easily probed by cosmic ray experiments. We explore models where the semi-annihilation cross section is…

hep-ph2018★ 385 cited

Long-Lived Particles at the Energy Frontier: The MATHUSLA Physics Case

David Curtin, Marco Drewes, Matthew McCullough +85

We examine the theoretical motivations for long-lived particle (LLP) signals at the LHC in a comprehensive survey of Standard Model (SM) extensions. LLPs are a common prediction of…

hep-ph2016★ 7 cited

A Systematic Effective Operator Analysis of Semi-Annihilating Dark Matter

Yi Cai, Andrew Spray

Semi-annihilation is a generic feature of dark matter theories stabilised by symmetries larger than a . It contributes to thermal freeze out, but is irrelevant for direct and…

hep-ph2015★ 9 cited

The Galactic Center Excess from Z3 Scalar Semi-Annihilations

Yi Cai, Andrew Paul Spray

We investigate the possibility of the Z3 scalar singlet model explaining the Fermi galactic centre excess. We find a good fit to the measured spectral excess in the region where th…

hep-ph2015★ 4 cited

Implications of diphoton searches for a Radion in the Bulk-Higgs Scenario

Peter Cox, Anibal D. Medina, Tirtha Sankar Ray +1

In this work we point out that the apparent diphoton excess initially presented by the ATLAS and CMS collaborations could have originated from a radion in the bulk Higgs scenario w…