2016 Fiscal Year Final Research Report
Photon-photon scattering experiment using XFEL
| Project/Area Number |
15K17629
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Particle/Nuclear/Cosmic ray/Astro physics
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| Research Institution | The University of Tokyo |
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Principal Investigator |
Yamazaki Takayuki 東京大学, 素粒子物理国際研究センター, 特任研究員 (40632360)
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| Project Period (FY) |
2015-04-01 – 2017-03-31
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| Keywords | 素粒子実験 / X線 |
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| Outline of Final Research Achievements |
I have searched for photon-photon elastic scattering at SACLA using a Laue-case beam splitter. No evidence of x-ray photon-photon scattering was observed, but the most stringent limit on the scattering cross section in the x-ray region was obtained. This result is published in Phys. Lett. B 763 (2016) 454-457.
Collision of an x-ray free electron laser and a high power near-infrared laser expects a much larger cross section of photon-photon scattering and is a new promising method to observe photon-photon scattering. I have developed a optical system to focus both lasers to 10 μm focal spot and collide them spacially and temporally.
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| Free Research Field |
素粒子実験
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