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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, Martínez-Vidal, Fernando, Milanés, Diego A., Oyanguren, Arantza, Aubert, B.
Fecha de publicación : 9-Jan-2009
Editor: American Physical Society
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: 10.1103/PhysRevLett.102.012001
ISSN: 0031-9007
DOI: 10.1103/PhysRevLett.102.012001
Citación : Physical Review Letters 102 (1): 012001 (2009)
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