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arXiv · 1209.6199

Determination of the number of $\psi^{\prime}$ event at BESIII

M. Ablikim·M. N. Achasov·D. J. Ambrose
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Abstract

The number of $\psp$ events accumulated by the BESIII experiment from March 3 through April 14, 2009, is determined by counting inclusive hadronic events. The result is $106.41\times(1.00\pm 0.81%)\times 10^{6} $. The error is systematic only; the statistical error is negligible.

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M. Ablikim, M. N. Achasov, D. J. Ambrose. 2012-09-27. Determination of the number of $\psi^{\prime}$ event at BESIII. https://doi.org/10.1088/1674-1137/37/6/063001

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