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pubmed:abstractText |
The decays ?'???(0), ?? and ??' are studied using data collected with the BESIII detector at the BEPCII e(+)e(-) collider. The processes ?'???(0) and ?'??? are observed for the first time with signal significances of 4.6? and 4.3?, respectively. The branching fractions are determined to be B(?'???(0))=(1.58±0.40±0.13)×10(-6), B(?'???)=(1.38±0.48±0.09)×10(-6), and B(?'???')=(126±3±8)×10(-6), where the first errors are statistical and the second ones systematic.
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