3 papers
hep-ph2026
Cornering MeV-GeV Axions and Dark Photons with LDMX
Sarah Gaiser, Alessandro Russo, Philip Schuster
Axion-like particles (ALPs), the QCD axion, and dark photons in the MeV-GeV mass range are motivated by various dark matter models and the strong CP problem, and are ubiquitous in…
hep-ph2025
Hydrogen 21 cm Constraints on the Photon's Spin Scale
Aidan Reilly, Alessandro Russo, Philip Schuster +1
We explore the fundamental but untested possibility that the photon is a continuous spin particle (CSP) with a small but non-zero spin Casimir . When , the familiar p…
hep-th2025
Interactions of a Continuous-Spin Field with a Spin-1/2 Particle
Shayarneel Kundu, Alessandro Russo, Philip Schuster +1
We introduce a formalism for coupling a bosonic Continuous-Spin field to familiar spin-1/2 matter. To do this, we describe the matter using the supersymmetric worldline formalism.…