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Open Access item 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
Appears in Collections:(IFIC) Artículos

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