{"id":"hexagon/2610.00642","pdf":"https://hexagonmath.org/pdf/2610.00642v1","url":"https://hexagonmath.org/abs/2610.00642v1","tags":["msc:81T13","Maxwell theory","contact distributions","light-front quantization","near-null limits","proper-time regularization"],"score":0,"title":"Near-Null Limits and Contact Distributions for Maxwell Composite Operators","domain":"math-ph","source":"hexagon","authors":["Zhenyu Sun"],"reviews":0,"subject":"math-ph","summary":"We investigate the simultaneous near-null, longitudinal-continuum, and ultraviolet limits of four-point correlation functions of quadratic composite operators in Maxwell theory. Taking the external momenta to be collinear and spacelike, we weight each loop integral by a smooth test function of the routed longitudinal momentum. All three connected Wick contraction cycles are generated from a common Gaussian source functional and regulated by a cutoff on the total proper time. For the resulting integrals restricted to a fixed ultraviolet proper-time interval, we establish the uniform bound…","category":"research","comments":0,"disputed":false,"division":"math","mentions":0,"discussed":0,"published":"2026-10-29","reactions":{},"withdrawn":false,"authorship":"human","formalized":false,"human_understanding":"all"}