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Título: | Measurement of the e(+)e(-) -> b(b)over-bar Cross Section between root s=10.54 and 11.20 GeV |
Autor: | Babar Collaboration; Azzolini, Virginia; López-March, Neus CSIC; Martínez-Vidal, Fernando CSIC ORCID; Milanés, Diego A. CSIC ORCID; Oyanguren, Arantza CSIC ORCID; Aubert, B. | Fecha de publicación: | 9-ene-2009 | Editor: | American Physical Society | Citación: | Physical Review Letters 102 (1): 012001 (2009) | Resumen: | We report e+e- --> b anti-b cross section measurements by the BABAR experiment performed during an energy scan in the range of 10.54 to 11.20 GeV at the PEP-II e+e- collider. A total relative error of about 5% is reached in more than three hundred center-of-mass energy steps, separated by about 5 MeV. These measurements can be used to derive precise information on the parameters of the Y(10860) and Y(11020) resonances. In particular we show that their widths may be smaller than previously measured. | Versión del editor: | http://dx.doi.org/ 10.1103/PhysRevLett.102.012001 | URI: | http://hdl.handle.net/10261/21997 | DOI: | 10.1103/PhysRevLett.102.012001 | ISSN: | 0031-9007 |
Aparece en las colecciones: | (IFIC) Artículos |
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cross section.pdf | 186,7 kB | Adobe PDF | Visualizar/Abrir |
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