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hep-th2026
Massive Gauge Theories from Consistency Conditions of Amplitudes
Junmou Chen
Based on the general principles of Lorentz symmetry and unitarity, we introduce two consistency conditions -- on-shell gauge symmetry and strong massive-massless continuation -- in…
hep-th2026
Relativistic Particle on Light-Front
Junmou Chen
We construct one-particle states as unitary, irreducible representations of Poincare group in front form, characterized by a special null vector, dubbed reference vector. We demons…