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https://hdl.handle.net/2445/140643| Title: | Search for Strange-Pentaquark Production in e+e− Annihilation at √s=10.58 GeVc |
| Author: | Graugés Pous, Eugeni BABAR Collaboration |
| Keywords: | Física de partícules Experiments Particle physics Experiments |
| Issue Date: | 21-Jul-2005 |
| Publisher: | American Physical Society |
| Abstract: | We search for strange-pentaquark states that have been previously reported by other experiments the Θ ( 1540 ) + , Ξ 5 ( 1860 ) −− , and Ξ 5 ( 1860 ) 0 in 123 fb − 1 of data recorded with the BABAR detector at the PEP-II e + e − storage ring. We find no evidence for these states and set 95% confidence level upper limits on the number of Θ ( 1540 ) + and Ξ 5 ( 1860 ) −− pentaquarks produced per e + e − annihilation into q ¯ q and per Υ ( 4 S ) decay. For q ¯ q events the Θ ( 1540 ) + [ Ξ 5 ( 1860 ) −− ] limit is about 8 [4] times lower than the rates measured for ordinary baryons of similar mass. |
| Note: | Reproducció del document publicat a: https://doi.org/10.1103/PhysRevLett.95.042002 |
| It is part of: | Physical Review Letters, 2005, vol. 95, num. 4, p. 042002 |
| URI: | https://hdl.handle.net/2445/140643 |
| Related resource: | https://doi.org/10.1103/PhysRevLett.95.042002 |
| ISSN: | 0031-9007 |
| Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
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| File | Description | Size | Format | |
|---|---|---|---|---|
| 539087.pdf | 157.39 kB | Adobe PDF | View/Open |
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