The Continuum Version of φ1+1-theory in Light-Front Quantization
نویسندگان
چکیده
A genuine continuum treatment of the massive φ41+1-theory in light-cone quantization is proposed. Fields are treated as operator valued distributions thereby leading to a mathematically well defined handling of ultraviolet and light cone induced infrared divergences and of their renormalization. Although non-perturbative the continuum light cone approach is no more complex than usual perturbation theory in lowest order. Relative to discretized light cone quantization, the critical coupling increases by 30% to a value r = 1.5. Conventional perturbation theory at the corresponding order yields r1 = 1, whereas the RG improved fourth order result is r4 = 1.8± 0.05. PM 97/18, June 1997 PACS : 11.10.Ef, 11.10.St, 11.30.Rd
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