Five-leg photon-neutrino interactions
| dc.creator | Abada, A. | |
| dc.creator | Matias, J. | |
| dc.creator | Pittau, R. | |
| dc.date | 1998-09-16 | |
| dc.date.accessioned | 2026-07-07T04:05:04Z | |
| dc.date.available | 2026-07-07T04:05:04Z | |
| dc.description | In a first part, we justify the feasibility of substituting a photon leg by a neutrino current in the Euler-Heisenberg Lagrangian to obtain an effective Lagrangian for the process $γν\toγγν$ and its crossed reactions. We establish the link between these processes and the four-photon scattering in both the Standard Model and the effective theory. As an application, we compute in this effective theory the processes $γν\toγγν$ and $γγ\toγν\barν$ and show how to use the $γγ\toγγ$ results as a check. We settle the question of the disagreement between two computations in the literature concerning the reaction $γγ\to γν\barν$. In the second part, we present results of the direct computation of the photon-neutrino five-leg processes in the Standard Model, discuss possible astrophysical implications of our results, and provide simple fits to the exact expressions. | |
| dc.description | 6 pages, axodraw, ltwol2e, 5 figures, contributed paper to the 29th International Conference on High Energy Physics (Vancouver) | |
| dc.identifier | https://arxiv.org/abs/hep-ph/9809418 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/9809418 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/48279 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Five-leg photon-neutrino interactions | |
| dc.type | text |