We report e+e-→bb 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 Y(10860) and Y(11020) resonances. In particular we show that their widths may be smaller than previously measured.

Aubert, B., Bona, M., Karyotakis, Y., Lees, J., Poireau, V., Prencipe, E., et al. (2009). Measurement of the e+e-→ bb Cross Section between s√ = 10.54 and 11.20 GeV. PHYSICAL REVIEW LETTERS, 102(1) [10.1103/PhysRevLett.102.012001].

Measurement of the e+e-→ bb Cross Section between s√ = 10.54 and 11.20 GeV

CARPINELLI, Massimo;
2009

Abstract

We report e+e-→bb 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 Y(10860) and Y(11020) resonances. In particular we show that their widths may be smaller than previously measured.
Articolo in rivista - Articolo scientifico
BABAR experiment
English
2009
102
1
012001
none
Aubert, B., Bona, M., Karyotakis, Y., Lees, J., Poireau, V., Prencipe, E., et al. (2009). Measurement of the e+e-→ bb Cross Section between s√ = 10.54 and 11.20 GeV. PHYSICAL REVIEW LETTERS, 102(1) [10.1103/PhysRevLett.102.012001].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/389367
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