2016 Fiscal Year Final Research Report
Study of highly excited baryon resonances via double meson photoproduction
| Project/Area Number |
26400287
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Particle/Nuclear/Cosmic ray/Astro physics
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| Research Institution | Tohoku University |
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Principal Investigator |
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Keywords | ハドロン物理 / 光生成反応 / ダイバリオン / バリオン分光 |
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| Outline of Final Research Achievements |
Highly-excited baryons and dibaryons have been experimentally studied via double meson photoproduction. Baryon resonances which hardly couple to a single meson and nucleon are investigated using simultaneous photoproduction of the charged and neutral pions. We have found baryons coupling to a rho meson and nucleon, and the details of them were reported at an international conference. The dibaryon state is of interest, which can be a molecule consisting of two baryons or a spatially compact hexaquark object. Coherent double neutral-pion photoproduction on the deuteron was investigated. The cross section for photoproduction of the isoscalar double Delta quasi bound state was reported as a letter in a scientific journal. We have also found a Delta and nucleon quasi-bound state candidate, which will be reported at an international conference and published in a scientific journal in this fiscal year.
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| Free Research Field |
ハドロン物理(実験)
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