| Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
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: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2011: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
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| Outline of Final Research Achievements |
I would like to examin what is the nature of the newly discovered exotic mesons that include heavy flavors on the basis of the fundamental theory of the strong interaction, Quantum ChromoDynamics (QCD). I then utilize lattice QCD simulations, which have been progressing with steadily increasing accuracy, to study 1) the structure of the traditional quarkonium states and 2) the possibility of narrow resonance formation near the threshold. In the former case, an application of the Bethe-Salpeter amplitude method for heavy quarkonium systems is successfully demonstrated. This approach can provide new and valuable informations. As for the latter case, I develop the Luscher finite size approach under the partially twisted boundary condition and then demonstrate the feasibility of a new approach to examine the existence of near-threshold and narrow resonance states through a study of the Y(4140) resonance in dynamical lattice QCD simulations at almost physical point.
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