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arXiv · 0805.1970

Macro-coherent two photon and radiative neutrino pair emission

M. Yoshimura·C. Ohae·A. Fukumi·K. Nakajima·I. Nakano·H. Nanjo·N. Sasao
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Abstract

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.

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M. Yoshimura, C. Ohae, A. Fukumi, K. Nakajima, I. Nakano, H. Nanjo, N. Sasao. 2008-05-14. Macro-coherent two photon and radiative neutrino pair emission. https://arxiv.org/abs/0805.1970

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