Update of the measurement of the cross section for e^+e^- -> psi(3770) -> hadrons

Details Update of the measurement of the cross section for e^+e^- -> psi(3770) -> hadrons Update of the measurement of the cross section for e^+e^- -> psi(3770) -> hadrons

2010-04-08

arxiv.org/abs/1004.1358v2

Phys.Rev.Lett.104:159901,2010.

Physics

High Energy Physics

High Energy Physics - Experiment

3 pages, 0 figures. This is an erratum to Phys.Rev.Lett.96:092002,2006. Added a reference.

Scientific paper

We have updated our measurement of the cross section for e^+e^- -> psi(3770) -> hadrons, our publication "Measurement of sigma(e^+e^- -> psi(3770) -> hadrons) at E_{c.m.} = 3773 MeV", arXiv:hep-ex/0512038, Phys.Rev.Lett.96, 092002 (2006). Simultaneous with this arXiv update, we have published an erratum in Phys.Rev.Lett.104, 159901 (2010). There, and in this update, we have corrected a mistake in the computation of the error on the difference of the cross sections for e^+e^- -> psi(3770) -> hadrons and e^+e^- -> psi(3770) -> DDbar. We have also used a more recent CLEO measurement of cross section for e^+e^- -> psi(3770) -> DDbar. From this, we obtain an upper limit on the branching fraction for psi(3770) -> non-DDbar of 9% at 90% confidence level.

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