A Measurement of the Total Width, the Electronic Width, and the Mass of the Upsilon(10580) Resonance

Abstract

We present a measurement of the parameters of the ${\rm Y}(10580)$ resonance based on a dataset collected with the BABAR detector at the SLAC PEP-II asymmetric $B$ factory. We measure the total width ${\Gamma }_{\mathrm{tot}}$ to be $(20.7\pm 1.6\pm 2.5)\mathrm{MeV}$, the electronic partial width ${\Gamma }_{ee}=(0.321\pm 0.017\pm 0.029)\mathrm{keV}$ and the mass $M=(10579.3\pm 0.4\pm 1.2)MeV/{\mathrm{c}}^2$.

12 pages, 4 postscript figures, submitted to Physical Review D

References in corpus (1)

• Big Bang Nucleosynthesis (in "The Review of Particle Properties" 2004)

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