| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2016: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2015: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2013: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
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| Outline of Final Research Achievements |
The spontaneously broken chiral symmetry in vacuum is considered to be incompletely restored in finite nuclear density systems with moderate reduction of the magnitude of the quark condensate. The investigation of partial restoration of chiral symmetry in nuclear matter faces two directions: to know the density dependence of the chiral condensate more accurately beyond linear density approximation, to know whether other systems than pion also have partial restoration consistently. In this work, we construct a chiral effective theory in nuclear medium for pion and evaluate the density dependence of the chiral condensate, decay constant and wave function renormalization. We also investigate the in-medium properties of the eta' and K+ meson for the consistency study. We also study the role of the diquark in hadron spectrum, the compositeness of hadron resonances, the nature of Lambda(1405).
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