| Budget Amount *help |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2016: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2015: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2014: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
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| Outline of Final Research Achievements |
We studied radiative emission of neutrino pair (RENP) from atoms/molecules. To prove macrocoherent enhancement, which is necessary to observe RENP, we investigated a companion process, paired superradiance (PSR), in which the neutrino pair in RENP is replaced by a photon, and observed an amplification of eighteen digits in our PSR experiment of para-hydrogen. We also examined a macrocoherent QED three-photon process (McQ3), which is the most important background process of RENP, and showed that McQ3 could be suppressed by using a photonic crystal. In addition, effects of the cosmic neutrino background (CNB) on RENP were studied and we found that the nature of CNB such as its temperature could be determined by observing RENP spectra.
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