An overview of η and η' decays at BESIII |
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引用本文: | 房双世,Andrzej Kupsc,魏代会.An overview of η and η' decays at BESIII[J].中国物理C(英文版),2018(4). |
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作者姓名: | 房双世 Andrzej Kupsc 魏代会 |
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摘 要: | The world's largest sample of J/ψ events, 1.31 billion events accumulated at the BESIII detector, provides a unique opportunity to investigate η and η physics via two-body J/ψ radiative or hadronic decays. For many η decay channels the low background data samples are up to three orders of magnitude larger than collected in any previous experiment. Here we review the most significant results on η and η obtained at BESIII so far. The analyses range from detailed studies of common decay dynamics, observations of new radiative and Dalitz decays, and searches for rare/forbidden decays with sensitivity up to B~10-5. Finally, prospects of forthcoming runs at the J/ψ peak forη and η physics are discussed.
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