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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

AuthorsBabar Collaboration; Azzolini, Virginia; López-March, Neus CSIC; Martínez-Vidal, Fernando CSIC ORCID; Milanés, Diego A. CSIC; Oyanguren, Arantza CSIC ORCID; Aubert, B.
Issue Date9-Jan-2009
PublisherAmerican Physical Society
CitationPhysical Review Letters 102 (1): 012001 (2009)
AbstractWe 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
URIhttp://hdl.handle.net/10261/21997
DOI10.1103/PhysRevLett.102.012001
ISSN0031-9007
Appears in Collections:(IFIC) Artículos




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