H. Li

Fuzzy Evolutionary Algorithm in Construction Project for Valuation

H. Li

Construction project valuation refers to the process of determining the economic value or worth of a construction project. This assessment is crucial for various stakeholders involved in the construction industry, including investors, lenders, developers, and contractors. Clustering algorithms has emerged as an …

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Observation of $e^+e^-\toπ^0π^0ψ_2(3823)$

BESIII Collaboration, M. Ablikim, Mikhail N. Achasov, P. Adlarson et autres

Using a data sample corresponding to an integrated luminosity of 11.3 $\rm fb^{-1}$ collected at center-of-mass energies from $4.23$ to $4.70$~GeV with the BESIII detector, we observe the process $e^+e^-\toπ^0π^0ψ_2(3823)$ for the first time with a statistical significance of $6.0σ$. The ratio …