| Budget Amount *help |
¥18,720,000 (Direct Cost: ¥14,400,000、Indirect Cost: ¥4,320,000)
Fiscal Year 2014: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2013: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2012: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2011: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2010: ¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
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| Outline of Final Research Achievements |
We first measured the transition form factor of the pi0 meson through singly tagged two-photon process and obtained better agreement with the QCD limiting value than the BaBar's, settling the "BaBar anomaly". Then measured the cross section of no-tag-two-photon production of K0S pair from the threshold, confirming the full interference between the f2(1270) and a2(1320) and measuring the two-photon widths of the f2'(1525),etc.
At present, the paper on the measurement of pi0 pair production cross section through singly tagged two-photon collision is almost ready to publish, where the transition form factors of the f0(980) and those of the f2(1270) for each of helicity=0,1 and 2 states as a function of Q2 are measured and compared with theories for the first time.
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