Macro-coherent two photon and radiative neutrino pair emission
| dc.creator | Yoshimura, M. | |
| dc.creator | Ohae, C. | |
| dc.creator | Fukumi, A. | |
| dc.creator | Nakajima, K. | |
| dc.creator | Nakano, I. | |
| dc.creator | Nanjo, H. | |
| dc.creator | Sasao, N. | |
| dc.date | 2008-05-14 | |
| dc.date.accessioned | 2026-07-07T09:38:46Z | |
| dc.date.available | 2026-07-07T09:38:46Z | |
| dc.description | We discuss a possibility of detecting a coherent photon pair emission and related radiative neutrino pair emission from excited atoms. It is shown that atoms of lambda- and ladder-type three level system placed in a pencil-like cylinder give a back to back emission of two photons of equal energy $Δ/2$, sharply peaked with a width $\propto $ 1/(target size) and well collimated along the cylinder axis. This process has a measurable rate $\propto$ (target number density) $^2 \times$ target volume, while a broader spectral feature of one-photon distribution separated by (mass sum of a neutrino pair)$^2/(2Δ)$ from the two photon peak may arise from radiative neutrino pair emission, with a much smaller rate. | |
| dc.description | 14 pages, 3 figures | |
| dc.identifier | https://arxiv.org/abs/0805.1970 | |
| dc.identifier | http://arxiv.org/abs/0805.1970 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/160932 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Macro-coherent two photon and radiative neutrino pair emission | |
| dc.type | text |