Rate amplification of the two photon emission from para-hydrogen toward the neutrino mass measurement
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We recently reported an experiment which focused on demonstrating the macro-coherent amplification mechanism. This mechanism, which was proposed for neutrino mass measurements, indicates that a multi-particle emission rate should be amplified by coherence in a suitable medium. Using a para-hydrogen molecule gas target and the adiabatic Raman excitation method, we observed that the two photon emission rate was amplified by a factor of more than 1015 from the spontaneous emission rate. This paper briefly summarizes the previous experimental result and presents the current status and the future prospect.
KeywordsNeutrino Raman excitation Para-hydrogen
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- 4.Agostini, M., et al. (GERDA Collaboration): Results on neutrinoless double-β decay of 76Ge from Phase I of the GERDA experiment. Phys. Rev. Lett 111, 122503 (2013). doi: 10.1103/PhysRevLett.111.122503
- 5.Gando, A., et al. (KamLAND-Zen Collaboration): Limit on neutrinoless β β decay of 136Xe from the first phase of KamLAND-Zen and comparison with the positive claim in 76Ge. Phys. Rev. Lett. 110, 062502 (2013). doi: 10.1103/PhysRevLett.110.062502