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New Electron Beam-Dump Experiments to Search for MeV to few-GeV Dark Matter
Eder Izaguirre, Gordan Krnjaic, Philip Schuster +1
In a broad class of consistent models, MeV to few-GeV dark matter interacts with ordinary matter through weakly coupled GeV-scale mediators. We show that a suitable meter-scale (or…
A Gauge Field Theory of Continuous-Spin Particles
Philip Schuster, Natalia Toro
We propose and quantize a local, covariant gauge-field action that unifies the description of all free helicity and continuous-spin degrees of freedom in a simple manner. This is t…
On the Theory of Continuous-Spin Particles: Helicity Correspondence in Radiation and Forces
Philip Schuster, Natalia Toro
We have recently shown that continuous-spin particles (CSPs) have covariant single-emission amplitudes with the requisite properties to mediate long-range forces. CSPs, the most ge…
On the Theory of Continuous-Spin Particles: Wavefunctions and Soft-Factor Scattering Amplitudes
Philip Schuster, Natalia Toro
The most general massless particles allowed by Poincare-invariance are "continuous-spin" particles (CSPs) characterized by a scale ρ, which at ρ=0 reduce to familiar helicity parti…