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Charmonium decays of Y(4260), psi(4160), and psi(4040)
| dc.contributor.author | Besson, David Zeke | |
| dc.date.accessioned | 2007-04-13T20:05:18Z | |
| dc.date.available | 2007-04-13T20:05:18Z | |
| dc.date.issued | 2006-04 | |
| dc.identifier.citation | Coan, TE, Gao, YS, et al. Charmonium decays of Y(4260), psi(4160), and psi(4040). PHYSICAL REVIEW LETTERS. April 2006. 96(16) | |
| dc.identifier.uri | http://hdl.handle.net/1808/1409 | |
| dc.description.abstract | Using data collected with the CLEO detector operating at the CESR e(+)e(-) collider at root s = 3.97-4.26 GeV, we investigate 15 charmonium decay modes of the psi(4040), psi(4160), and Y(4260) resonances. We confirm, at 11 sigma significance, the BABAR Y(4260)->pi(+)pi(-)J/psi discovery, make the first observation of Y(4260)->pi(0)pi(0)J/psi (5.1 sigma), and find the first evidence for Y(4260)-> K(+)K(-)J/psi (3.7 sigma). We measure e(+)e(-) cross sections at root s=4.26 GeV as sigma(pi(+)pi(-)J/psi)=58(-10)(+12)+/- 4 pb, sigma(pi(0)pi(0)J/psi)=23(-8)(+12)+/- 1 pb, and sigma(K(+)K(-)J/psi)=9(-5)(+9)+/- 1 pb, in which the uncertainties are statistical and systematic, respectively. Upper limits are placed on other decay rates from all three resonances. | |
| dc.language.iso | en_US | |
| dc.publisher | AMERICAN PHYSICAL SOC | |
| dc.relation.isversionof | http://publish.aps.org/ | |
| dc.title | Charmonium decays of Y(4260), psi(4160), and psi(4040) | |
| dc.type | Article | |
| dc.rights.accessrights | openAccess |
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