| Title: | MEASUREMENTS OF  PRODUCTION AND χC2 PRODUCTION IN TWO-PHOTON COLLISIONS |
| DOI No: | 10.1142/9789812777157_0053 |
| Source: | PHOTON 2001 (pp 263-267)
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| Author(s): | S. UEHARA
KEK-IPNS, Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization, Tsukuba 305-0801, Japan
for the Belle Collaboration |
| Abstract: | We have measured  production and χc2 production in two-photon collisions with the Belle detector at the KEKB e+e- collider. The invariant-mass spectra for γγ → K+K- and  processes are measured, and resonant structures found in the 1.7 - 2.3 GeV region are discussed. Production of the χc0 has been observed in the  channel. The production of χc2 is measured in the γJ/ψ decay channel, and a preliminary result for its two-photon decay width is obtained. |
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