Threshold Multiparticle Amplitudes in Phi^4 Theories at Large N
| dc.creator | Makeenko, Yu. | |
| dc.date | 1994-08-22 | |
| dc.date.accessioned | 2026-07-07T03:57:02Z | |
| dc.date.available | 2026-07-07T03:57:02Z | |
| dc.description | I review some recent work on the problem of multiparticle production in a phi^4-theory with an O(N) symmetry. Threshold amplitudes with fixed number of produced particles are exactly calculated at large-N to all loops and vanish on mass shell for 2->n when n>2 due to a dynamical symmetry. I consider an extension to the cases when the O(N) symmetry is softly broken by masses including spontaneous breaking of a remaining reflection symmetry. The exact solutions are obtained by the Gelfand--Dikii technique of finding the diagonal resolvent of the Schrodinger operator which emerges due to factorization at large N. I report also some new results on the diagonal resolvent for a general Poschl--Teller potential, which could be useful for calculations of multiparticle amplitudes in the standard model. | |
| dc.description | 20pp., Latex, YM-5-94 [Talk at Quarks-94] | |
| dc.identifier | https://arxiv.org/abs/hep-ph/9408337 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/9408337 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/45245 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.subject | High Energy Physics - Theory | |
| dc.title | Threshold Multiparticle Amplitudes in Phi^4 Theories at Large N | |
| dc.type | text |