Charm cross-section and charmonium(like) states in e+e- annihilation with Belle
T.Uglov
TL;DR
This paper presents measurements of exclusive cross sections in e+e- annihilation, reports the first observation of certain decay modes, and identifies new states like Y(4660) and a cluster at 4.05 GeV/c2.
Contribution
It provides new experimental data on charm production and discovers new charmonium-like states using Belle's ISR measurements.
Findings
Observation of psi(4415) -> DD*2(2460)bar decay
Discovery of Y(4660) state
Identification of a new event cluster at 4.05 GeV/c2
Abstract
We report BELLE measurements of the exclusive cross sections for the processes e+e-->DD*, e+e-->DD, e+e-->DDpi, the first observation of psi(4415)-> DD*2(2460)bar decay and new state, Y(4660), using ISR. In addition, another cluster of events at around 4.05GeV/c2 is reported.
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