Rate amplification of the two photon emission from para-hydrogen toward the neutrino mass measurement

Takahiko Masuda; Hideaki Hara; Yuki Miyamoto; Susumu Kuma; Itsuo Nakano; Chiaki Ohae; Noboru Sasao; Minoru Tanaka; Satoshi Uetake; Akihiro Yoshimi; Koji Yoshimura; Motohiko Yoshimura

doi:10.1007/s10751-015-1177-1

Rate amplification of the two photon emission from para-hydrogen toward the neutrino mass measurement

Takahiko Masuda, Hideaki Hara, Yuki Miyamoto, Susumu Kuma, Itsuo Nakano, Chiaki Ohae, Noboru Sasao, Minoru Tanaka, Satoshi Uetake, Akihiro Yoshimi, Koji Yoshimura, Motohiko Yoshimura

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	73-77
Number of pages	5
Journal	Hyperfine Interactions
Volume	236
Issue number	1-3
DOIs	https://doi.org/10.1007/s10751-015-1177-1
Publication status	Published - Nov 1 2015

Keywords

Neutrino
Para-hydrogen
Raman excitation

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
Nuclear and High Energy Physics
Condensed Matter Physics
Physical and Theoretical Chemistry

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Rate amplification of the two photon emission from para-hydrogen toward the neutrino mass measurement. / Masuda, Takahiko ; Hara, Hideaki ; Miyamoto, Yuki; Kuma, Susumu; Nakano, Itsuo; Ohae, Chiaki; Sasao, Noboru; Tanaka, Minoru; Uetake, Satoshi ; Yoshimi, Akihiro ; Yoshimura, Koji ; Yoshimura, Motohiko.

In: Hyperfine Interactions, Vol. 236, No. 1-3, 01.11.2015, p. 73-77.

Research output: Contribution to journal › Article › peer-review

Masuda, Takahiko ; Hara, Hideaki ; Miyamoto, Yuki ; Kuma, Susumu ; Nakano, Itsuo ; Ohae, Chiaki ; Sasao, Noboru ; Tanaka, Minoru ; Uetake, Satoshi ; Yoshimi, Akihiro ; Yoshimura, Koji ; Yoshimura, Motohiko. / Rate amplification of the two photon emission from para-hydrogen toward the neutrino mass measurement. In: Hyperfine Interactions. 2015 ; Vol. 236, No. 1-3. pp. 73-77.

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AU - Masuda, Takahiko

AU - Hara, Hideaki

AU - Miyamoto, Yuki

AU - Kuma, Susumu

AU - Nakano, Itsuo

AU - Ohae, Chiaki

AU - Sasao, Noboru

AU - Tanaka, Minoru

AU - Uetake, Satoshi

AU - Yoshimi, Akihiro

AU - Yoshimura, Koji

AU - Yoshimura, Motohiko

PY - 2015/11/1

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AB - 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.

KW - Neutrino

KW - Para-hydrogen

KW - Raman excitation

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Rate amplification of the two photon emission from para-hydrogen toward the neutrino mass measurement

Abstract

Keywords

ASJC Scopus subject areas

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