Physics – High Energy Physics – High Energy Physics - Experiment
Scientific paper
2001-04-13
Physics
High Energy Physics
High Energy Physics - Experiment
4 pages, Proceedings of the 4th International Conference on B Physics & CP Violation, Ise-Shima, Japan, February 19 - 23, 2001
Scientific paper
The production of a kaon pair ($K^+ K^-$ and $K^0_S K^0_S$) in two-photon processes has been measured using the Belle detector at the electron-positron collider KEKB. We have obtained the invariant-mass distribution of the processes between 1.3 and 2.3 GeV. A broad bump structure around 1.7 GeV in the $K^0_S K^0_S$ channel is confirmed, while, in the $K^+ K^-$ channel, a bump structure is seen near 1.9 GeV. The angular distribution of the final-state kaons is analyzed to explore the spin(-helicity) structure in each invariant-mass region for the two processes. Contributions from existing and postulated resonances are discussed.
for the Belle Collaboration
Huang Hsuan-Cheng
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