| Budget Amount *help |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2015: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2014: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2013: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2012: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
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| Outline of Final Research Achievements |
I constructed a low-energy hadron effective model based on the gauge-gravity duality in superstring theories, and studied phase structure and changes of hadron properties in nuclear matter at high density. Main results are as follows. I confirmed the existence of half-Skyrmion phase where the spontaneous chiral symmetry breaking has an inhomogeneity in space. I showed that the nucleon mass decreases with density in the low-density region, while it is stable against the density in the half-Skyrmion phase. I also showed that the masses of the pseudoscalar and vector D mesons, which include a charm quark, are degenerate with those of the scalar and axial-vector D mesons.
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