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Showing 1 to 1 of 1 for “"Decays of Y"”.
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Evidence for e+e− → γηc(1S) at center-of-mass energies between 4.01 and 4.60 GeV at BESIII
This dissertation shows the first evidence of the process e+e− → γηc(1S) using data collected by the BESIII experiment operating at BEPCII. This process can be used as a probe to study the nature of recently discovered charmonium-like Y states between 4.0 and 4.6 GeV, including the Y (4260) and Y …