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Title: Measurement of the e(+)e(-) -> b(b)over-bar Cross Section between root s=10.54 and 11.20 GeV
Authors: Babar Collaboration; Azzolini, Virginia; López-March, Neus; Martínez-Vidal, Fernando; Milanés, Diego A.; Oyanguren, Arantza; Aubert, B.
Issue Date: 9-Jan-2009
Publisher: American Physical Society
Citation: Physical Review Letters 102 (1): 012001 (2009)
Abstract: 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.
Publisher version (URL): 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
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