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2009-01-09

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Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/138263

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

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https://doi.org/10.1103/PhysRevLett.102.012001

Abstract

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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Física de partícules, Experiments

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Particle physics, Experiments

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Articles publicats en revistes (Física Quàntica i Astrofísica)

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GARRA TICÓ, Jordi, GRAUGÉS POUS, Eugeni and BABAR Collaboration. Measurement of the e+e−→b¯b Cross Section between √s=10.54 and 11.20 GeV. Physical Review Letters. 2009. Vol. 102, num. 1, pags. 012001. ISSN 0031-9007. [consulted: 19 of August of 2026]. Available at: https://hdl.handle.net/2445/138263

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