| Autor: |
J.T. Boyd |
| Rok vydání: |
2004 |
| Předmět: |
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| Zdroj: |
Nuclear Physics B - Proceedings Supplements. 126:243-249 |
| ISSN: |
0920-5632 |
| DOI: |
10.1016/s0920-5632(03)02338-7 |
| Popis: |
The authors present three analyses on charmonium production using 89 fb{sup -1} of e{sup +}e{sup -} collision data collected by the BABAR detector at the PEP-II storage ring operating at the {Upsilon}(4S) at SLAC. A precise measurement of the {eta}{sub c} total width is obtained from a study of the invariant K{sub s}{sup 0}K{sup {+-}}{pi}{sup {-+}} mass spectrum for a sample of {eta}{sub c} mesons produced in two-photon interactions. The total width of the J/{psi} meson is measured using initial state radiation e{sup +}e{sup -} {yields} {mu}{sup +}{mu}{sup -}{gamma} events. Finally branching fraction measurements for the exclusive B meson decays B{sup 0} {yields} J/{psi} p{bar p} and B{sup +} {yields} J/{psi} p{bar {Lambda}} are presented. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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