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An overview of eta and eta ' decays at BESIII
Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China.;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.;Guangxi Normal Univ, Guilin 541004, Peoples R China..
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.ORCID iD: 0000-0003-4937-2270
Guangxi Normal Univ, Guilin 541004, Peoples R China..
2018 (English)In: Chinese Physics C, High Energy Physics & Nuclear Physics, ISSN 1674-1137, E-ISSN 0899-9996, Vol. 42, no 4, article id 042002Article, review/survey (Refereed) Published
Abstract [en]

The world's largest sample of J/psi) events, 1.31 billion events accumulated at the BESIII detector, provides a unique opportunity to investigate eta and eta' physics via two-body J/psi radiative or hadronic decays. For many eta' 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 eta and eta' 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 similar to 10(-5). Finally, prospects of forthcoming runs at the J/psi peak for eta and eta' physics are discussed.

Place, publisher, year, edition, pages
IOP PUBLISHING LTD , 2018. Vol. 42, no 4, article id 042002
Keywords [en]
eta/-eta ' decays, the BESIII detector, J/psi decays
National Category
Subatomic Physics
Identifiers
URN: urn:nbn:se:uu:diva-357488DOI: 10.1088/1674-1137/42/4/042002ISI: 000430884300002OAI: oai:DiVA.org:uu-357488DiVA, id: diva2:1241251
Available from: 2018-08-23 Created: 2018-08-23 Last updated: 2018-08-23Bibliographically approved

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