We report e(+)e(-) -> b (b) over bar 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.

Measurement of the e(+)e(-) -> b(b)over-bar Cross Section between root s=10.54 and 11.20 GeV RID C-5223-2009

CALDERINI, GIOVANNI;ANGELINI, CARLO;BATIGNANI, GIOVANNI;BETTARINI, STEFANO;FORTI, FRANCESCO;GIORGI, MARCELLO;PAOLONI, EUGENIO;RIZZO, GIULIANA;
2009-01-01

Abstract

We report e(+)e(-) -> b (b) over bar 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.
2009
Aubert, B; Bona, M; Karyotakis, Y; Lees, Jp; Poireau, V; Prencipe, E; Prudent, X; Tisserand, V; Tico, J; Grauges, E; Lopez, L; Palano, A; Pappagallo, ...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11568/193705
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