Control of electro-weak process by macro-coherence: towards the neutrino mass spectroscopy with atoms or molecules
| Project/Area Number |
15H03660
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (B)
|
| Allocation Type | Single-year Grants |
|---|
| Section | 一般 |
|---|
| Research Field |
Particle/Nuclear/Cosmic ray/Astro physics
|
|---|
| Research Institution | Okayama University |
|---|
Principal Investigator |
Uetake Satoshi 岡山大学, 異分野基礎科学研究所, 准教授 (80514778)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
吉村 太彦 岡山大学, 異分野基礎科学研究所, 教授 (70108447)
|
|---|
| Project Period (FY) |
2015-04-01 – 2018-03-31
|
| Project Status |
Completed (Fiscal Year 2017)
|
| Budget Amount *help |
¥17,420,000 (Direct Cost: ¥13,400,000、Indirect Cost: ¥4,020,000)
Fiscal Year 2017: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2016: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2015: ¥10,400,000 (Direct Cost: ¥8,000,000、Indirect Cost: ¥2,400,000)
|
|---|
| Keywords | ニュートリノ質量分光 / マクロコヒーレント増幅 / ニュートリノ質量 |
|---|
| Outline of Final Research Achievements |
Radiative emission of neutrino pair (RENP) from atoms or molecules has been considered a novel tool to determine the yet unknown neutrino parameters. In order for a future RENP experiment, (1) we proceeded detail study of macro-coherent amplification mechanism for developing an experimental method to control higher order process of quantum electrodynamics such as two-photon paired superradiance or multiphoton emission; (2) search the best target that has high-density and long coherence time for RENP process. We have succeeded to enhance the emission rate to 18 orders of magnitude in the two-photon emission process by optimizing the experimental parameters. Also we have observed automatic development of coherence in the solid parahydrogen crystal. The coherence seems to increase 10 times longer time duration than the input pulse duration. We developed the excitation laser for Xe gas, which is a suitable candidate for the RENP experiment.
|
Report
(4 results)
Research Products
(32 results)
-
-
-
-
-
-
[Journal Article] Simultaneous Measurements of Superradiance at Multiple Wavelength from Helium Excited States: II. Analysis.2016
Author(s)
Ohae, C., Harries, J.R., Iwayama, H., Kawaguchi, K., Kuma, S., Miyamoto, Y., Nagasono, M., Nakajima, K., Nakano, I., Shigemasa, E., Sasao, N., Uetake, S., Wakabayashi, T., Yoshimi, A., Yoshimura, K., Yoshimura, M
-
Journal Title
J. Phys. Soc. Jpn.
Volume: 85
Issue: 3
Pages: 034301-034301
DOI
Related Report
Peer Reviewed / Int'l Joint Research
-
-
-
-
[Presentation] ニュートリノ質量分光のためのパラ水素ガスを用いた対向レーザー励起実験2018
Author(s)
平木貴宏, 原秀明, 今村慧, 増田孝彦, 宮本祐樹, 笹尾登, 高江洲義太郎, 植竹智, 吉見彰洋, 吉村浩司, 吉村太彦
Organizer
日本物理学会第73回年次大会
Related Report
-
[Presentation] ニュートリノ質量分光へ向けたXeガス対向励起実験の開発2018
Author(s)
今村慧, 原秀明, 平木貴宏, 宮本祐樹, 増田孝彦, 岡井晃一, 笹尾登, 佐藤帯子, 高江洲義太郎, 植竹智, 吉見彰洋, 吉村浩司, 吉村太彦
Organizer
日本物理学会第73回年次大会
Related Report
-
-
-
-
-
-
[Presentation] 原子を用いたニュートリノ質量分光のための対向レーザー励起実験の現状2017
Author(s)
植竹智, 原秀明, 平木貴宏, 今村慧, 増田孝彦, 宮本祐樹, 岡井晃一, 笹尾登, 高江洲義太郎, 田中実, 津村浩二, 吉見彰洋, 吉村浩司, 吉村太彦
Organizer
日本物理学会2017年秋季大会
Related Report
-
[Presentation] 中赤外光を用いたラダー型励起による水素分子振動準位間のコヒーレンス生成2017
Author(s)
原秀明, 平木貴宏, 今村慧, 増田孝彦, 宮本祐樹, 笹尾登, 高江洲義太郎, 植竹智, 吉見彰洋, 吉村浩司, 吉村太彦
Organizer
日本物理学会2017年秋季大会
Related Report
-
-
-
-
-
-
-
-
-
-
-
-
-
-
