Grange, Pierre and Ullrich, Peter and Werner, Ernst (1998) Continuum version of phi(4)(1+1) theory in light-front quantization. PHYSICAL REVIEW D, 57 (8). pp. 4981-4989. ISSN 0556-2821
Full text not available from this repository.Abstract
A genuine continuum treatment of the massive phi(1+1)(4) 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 nonperturbative, 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 r(1) = 1, whereas the RG-improved fourth-order result is r(4) = 1.8 +/- 0.05.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | SPONTANEOUS SYMMETRY-BREAKING; CONE FIELD-THEORY; ZERO MODES |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 24 Feb 2023 11:01 |
| Last Modified: | 24 Feb 2023 11:01 |
| URI: | https://pred.uni-regensburg.de/id/eprint/49938 |
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