| Budget Amount *help |
¥19,370,000 (Direct Cost: ¥14,900,000、Indirect Cost: ¥4,470,000)
Fiscal Year 2015: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2014: ¥5,850,000 (Direct Cost: ¥4,500,000、Indirect Cost: ¥1,350,000)
Fiscal Year 2013: ¥10,140,000 (Direct Cost: ¥7,800,000、Indirect Cost: ¥2,340,000)
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| Outline of Final Research Achievements |
We have searched for axion-like particles (ALP), which can be a reasonable candidate for dark matter in the Universe, by combining two-color laser fields in the same optical axis. This search is based on ”four-wave mixing in the vacuum", where one laser is used to create ALP and the other one is used to stimulate decays of those produced particles. As a result of the search, we have not observed the signature beyond statistical fluctuations. This result has been published as two papers. The first result corresponds to historically the first search based on this unique method.
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