Unstable Particles
| dc.creator | Stuart, Robin G. | |
| dc.date | 1995-04-15 | |
| dc.date | 1995-04-17 | |
| dc.date.accessioned | 2026-07-07T09:00:23Z | |
| dc.date.available | 2026-07-07T09:00:23Z | |
| dc.description | Unstable particles cannot be treated as asymptotic external states in $S$-matrix theory and when they occur as resonant states cannot be described by finite-order perturbation theory. The known facts concerning unstable particles are reviewed and it is shown how to construct gauge-invariant expressions for matrix elements containing intermediate unstable particles and physically meaningful production cross-sections for unstable particles. The results and methodology presented are relevant for $Z^0$ resonance physics, $W^+W^-$ and $Z^0Z^0$ pair production and can be straightforwardly applied to other processes. | |
| dc.description | 15 pages LaTeX 2e; blank line generated by line spill in mailer causes LaTeX error and has been corrected | |
| dc.identifier | https://arxiv.org/abs/hep-ph/9504308 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/9504308 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/147993 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Unstable Particles | |
| dc.type | text |