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1. chinaXiv:201703.00600 [pdf]

Determination of ψ(2S) Total Number by Inclusive Hadronic Decay

MO Xiao-Hu; ZHU Yong-Sheng; YUAN Chang-Zheng; FU Cheng-Dong; Li Gang
Subjects: Physics >> Condensed Matter: Structural, Mechanical and Thermal Properties

On the basis of the study of inclusive hadronic events, two methods are adopted to determine the number of produced ψ(2S) events collected by BES in 2001-2002 run, which is 14:0 ? 106 with the uncertainty of 4%.

submitted time 2017-03-26 Hits1439Downloads798 Comment 0

2. chinaXiv:201609.00926 [pdf]

Combined estimation for multi-measurements of branching ratio

LIU Xiao-Xia; LYU Xiao-Rui; ZHU Yong-Sheng
Subjects: Physics >> Nuclear Physics

A maximum likelihood method is used to deal with the combined estimation of multi-measurements of a branching ratio, where each result can be presented as an upper limit. The joint likelihood function is constructed using observed spectra of all measurements and the combined estimate of the branching ratio is obtained by maximizing the joint likelihood function. The Bayesian credible interval, or upper limit of the combined branching ratio, is given in cases both with and without inclusion of systematic error.

submitted time 2016-09-13 Hits1111Downloads639 Comment 0

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