Hadron Spectroscopy from BES and CLEOc
Chang-Zheng Yuan
TL;DR
This paper reviews recent experimental results from BES and CLEOc on hadron spectroscopy and charmonium decays, highlighting discoveries like X(1835), scalar particles, and insights into the c0 puzzle in J/psi, psi', and psi'' decays.
Contribution
It provides a comprehensive overview of new experimental findings in hadron spectroscopy from BES and CLEOc, including observations of new states and decay patterns.
Findings
Observation of X(1835) in J/psi decays
Study of scalar particles in radiative and hadronic decays
Analysis of the c0 puzzle in charmonium decays
Abstract
Recent results from BES and CLEOc experiments on hadron spectroscopy and charmonium decays using J/psi, psi' and psi'' data samples collected in e+e- annihilation are reviewed, including the observation of X(1835) in J/psi --> gamma pi+ pi- eta', study of the scalar particles in J/psi radiative and hadronic decays, as well as in chi_c0 hadronic decays, and the study of the ``\rho\pi puzzle'' in J/psi, psi', and psi'' decays. We also make a few comments on partial wave analysis, and the study of the \rho \pi puzzle.
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