activity
20072026
most citedA facility to Search for Hidden Particles at the CERN SPS: the SHiP physics case

782 citations · 4.8k across the 87 of their papers we have counts for

collaborators

90 papers

hep-ph2026

On the Origins of Varying Gauge Couplings

Carlos Henrique de Lima, David McKeen, David E. Morrissey +1

Variations in the gauge couplings of the Standard Model have been searched for experimentally and proposed as solutions to open questions in fundamental physics. Varying gauge coup…

hep-ph2026

Neutrino Electroweak Couplings and the Neutrino Fog at Belle II

Carlos Henrique de Lima, David McKeen, Afif Omar +1

The mono-photon process at Belle II probes both invisible new states and the electroweak couplings of neutrinos. In this work, we study the proces…

hep-ph2026

High Energy Photon Polarimetry at Lepton Colliders: Quantum Information from Converted Photons

Carlos Henrique de Lima, Navin McGinnis, David McKeen

We study high-energy photons produced at a lepton collider that convert into an pair in the detector, as a tool for measuring quantum information observables. We consider…

hep-ph2026

Low-Multiplicity Jets as Probes of GeV-Scale Light-Quark-Coupled Particles

Carlos Henrique de Lima, David McKeen, Maximilian Swiatlowski

We propose a search at the LHC for GeV-scale particles coupling predominantly to light quarks based on low-multiplicity jets. The search targets production in association with a ha…

physics.atom-ph2026

Shake-up and shake-off spectra in the electron capture decay of atomic Be

Mauro Guerra, Inwook Kim, Stephan Friedrich +33

The most stringent laboratory-based experimental limits on the existence of sub-MeV sterile neutrinos are currently set by decay spectroscopy of radioactive Be embedded into su…

hep-ph2026

Hadronic Probes of Non-Standard Neutrino Interactions

Carlos Henrique de Lima, David McKeen, John Ng +1

In this work, we study leptonic decays of hadrons as probes of light neutrinophilic scalars that mediate enhanced neutrino self-interactions. Such scalars can be emitted in process…