# name
Measurement of the e+e−→b¯b Cross Section between √s=10.54 and 11.20 GeV

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We report e + e − → b ¯ 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 SLAC PEP-II e + e − collider. A total relative error of about 5% is reached in more than 300 center-of-mass energy steps, separated by about 5 MeV. These measurements can be used to derive precise information on the parameters of the Υ ( 10860 ) and Υ ( 11020 ) resonances. In particular we show that their widths may be smaller than previously measured.

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Articles publicats en revistes (Física Quàntica i Astrofísica)

# metadata.dc.title[].value
Measurement of the e+e−→b¯b Cross Section between √s=10.54 and 11.20 GeV