Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10722128 | Physics Letters B | 2009 | 6 Pages |
Abstract
The cross sections for the reactions e+eââÏη, Ïηâ², Ïη, ÏηⲠhave been measured using a data sample of 516 fbâ1 collected with the Belle detector at the KEKB asymmetric-energy e+eâ collider. The corresponding values of the cross sections are: 1.4±0.4±0.1 fb (Ïη), 5.3±1.1±0.4 fb (Ïηâ²), 3.1±0.5±0.1 fb (Ïη) and 3.3±0.6±0.2 fb (Ïηâ²). The energy dependence of the cross sections is presented using Belle measurements together with those of CLEO and BaBar.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Nuclear and High Energy Physics
Authors
Belle Collaboration Belle Collaboration, K. Belous, M. Shapkin, I. Adachi, H. Aihara, K. Arinstein, V. Aulchenko, A.M. Bakich, V. Balagura, E. Barberio, W. Bartel, A. Bay, M. Bischofberger, A. Bondar, A. Bozek, M. BraÄko, T.E. Browder, P. Chang,