| dc.contributor.author | Ammar, Raymond G. | |
| dc.contributor.author | Bean, Alice | |
| dc.contributor.author | Besson, David Zeke | |
| dc.contributor.author | Davis, Robin E. P. | |
| dc.contributor.author | Kwak, Nowhan | |
| dc.contributor.author | Zhao, X. | |
| dc.date.accessioned | 2007-04-11T18:50:58Z | |
| dc.date.available | 2007-04-11T18:50:58Z | |
| dc.date.issued | 2000-10 | |
| dc.identifier.citation | Brandenburg, G, Ershov, A, et al. Measurements of the mass, total width, and two-photon partial width of the eta(c) meson. AMERICAN PHYSICAL SOC. October 2000. 85(15) : 3095-3099 | |
| dc.identifier.uri | http://hdl.handle.net/1808/1342 | |
| dc.description.abstract | Using 13.4 fb(-1) of data collected with the CLEO detector at the Cornell Electron Storage Ring, we have observed 300 events for the two-photon production of ground-state pseudoscalar charmonium in the decay eta(c) --> K(S)(0)K(+/-)pi(+/-). We have measured the eta(c) mass to be [2980.4 +/- 2.3 (stat) +/- 0.6 (syst)] MeV and its full width as [27.0 +/- 5.8 (stat) +/- 1.4 (syst)] MeV. We have determined the two-photon partial width of the eta(c) meson to be [7.6 +/- 0.8 (stat) +/- 0.4 (syst) +/- 2.3 (br)] keV, with the last uncertainty associated with the decay branching fraction. | |
| dc.language.iso | en_US | |
| dc.publisher | AMERICAN PHYSICAL SOC | |
| dc.relation.isversionof | http://publish.aps.org/ | |
| dc.title | Measurements of the mass, total width, and two-photon partial width of the eta(c) meson | |
| dc.type | Article | |
| dc.rights.accessrights | openAccess | |
