High statistics measurement of the cross sections of gamma gamma --> pi+ pi- production.

The Belle collaboration
Mori, T. , Uehara, S. , Watanabe, Y. , Abe, K. , Adachi, I. , Aihara, H. , Arinstein, K. , Aulchenko, V. , Aushev, T. , Bakich, A.M.
J.Phys.Soc.Jap. 76 (2007) 074102, 2007.

Abstract (data abstract)
KEK. High statistics measurement of the cross sections for the process GAMMA GAMMA --& gt; PI+ PI- in the invariant mass range W from 0.8 to 1.5 GeV using datahaving an integrated luminosity of 85.9 FB-1 collected at E+ E- centre of mass energies of 10.58 and 10.52 GeV.. This part has the total cross sections and differential cross sections from 0.8025 to 1.1475 GeV.. Numerical values supplied by Y Wanatabe. KEK. High statistics measurement of the cross sections for the process GAMMA GAMMA --& gt; PI+ PI- in the invariant mass range W from 0.8 to 1.5 GeV using datahaving an integrated luminosity of 85.9 FB-1 collected at E+ E- centre of mass energies of 10.58 and 10.52 GeV.. This part has the differential cross sections from 1.1525 to 1.4975 GeV.. Numerical values supplied by Y Wanatabe.

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