Search for the X (2370) and observation of eta(c) -> eta eta eta ' in J/psi -> gamma eta eta eta '
EC| ONEDEGGAM ,
DFG| Charmonium Physics Experiments with the BES III Detector
Ablikim M.; Achasov M. N.; Adlarson P.; Ahmed S.; Albrecht M.; Aliberti R.; Amoroso A.; +193 Authors
Ablikim M.; Achasov M. N.; Adlarson P.; Ahmed S.; Albrecht M.; Aliberti R.; Amoroso A.; An Q.; Bai X. H.; Bai Y.; Bakina O.; Ferroli R. B.; Balossino I.; Ban Y.; Begzsuren K.; Bennett J. V.; Berger N.; Bertani M.; Bettoni D.; Bianchi F.; Biernat J.; Bloms J.; Bortone A.; Boyko I.; Briere R. A.; Cai H.; Cai X.; Calcaterra A.; Cao G. F.; Cao N.; Cetin S. A.; Chang J. F.; Chang W. L.; Chelkov G.; Chen D. Y.; Chen G.; Chen H. S.; Chen M. L.; Chen S. J.; Chen X. R.; Chen Y. B.; Chen Z. J.; Cheng W. S.; Cibinetto G.; Cossio F.; Cui X. F.; Dai H. L.; Dai J. P.; Dai X. C.; Dbeyssi A.; de Boer R. E.; Dedovich D.; Deng Z. Y.; Denig A.; Denysenko I.; Destefanis M.; de Mori F.; Ding Y.; Dong C.; Dong J.; Dong L. Y.; Dong M. Y.; Du S. X.; Fang J.; Fang S. S.; Fang Y.; Farinelli R.; Fava L.; Feldbauer F.; Felici G.; Feng C. Q.; Fritsch M.; Fu C. D.; Fu Y.; Gao X. L.; Gao Y.; Gao Y.; Gao Y. G.; Garzia I.; Gersabeck E. M.; Gilman A.; Goetzen K.; Gong L.; Gong W. X.; Gradl W.; Greco M.; Gu L. M.; Gu M. H.; Gu S.; Gu Y. T.; Guan C. Y.; Guo A. Q.; Guo L. B.; Guo R. P.; Guo Y. P.; Guskov A.; Han S.; Han T. T.; Han T. Z.; Hao X. Q.; Harris F. A.; Husken N.; He K. L.; Heinsius F. H.; Heinz C. H.; Held T.; Heng Y. K.; Himmelreich M.; Holtmann T.; Hou Y. R.; Hou Z. L.; Hu H. M.; Hu J. F.; Hu T.; Hu Y.; Huang G. S.; Huang L. Q.; Huang X. T.; Huang Y. P.; Huang Z.; Hussain T.; Andersson W. I.; Imoehl W.; Irshad M.; Jaeger S.; Janchiv S.; Ji Q.; Ji Q. P.; Ji X. B.; Ji X. L.; Jiang H. B.; Jiang X. S.; Jiao J. B.; Jiao Z.; Jin S.; Jin Y.; Johansson T.; Kalantar-Nayestanaki N.; Kang X. S.; Kappert R.; Kavatsyuk M.; Ke B. C.; Keshk I. K.; Khoukaz A.; Kiese P.; Kiuchi R.; Kliemt R.; Koch L.; Kolcu O. B.; Kopf B.; Kuemmel M.; Kuessner M.; Kupsc A.; Kurth M. G.; Kuhn W.; Lane J. J.; Lange J. S.; Larin P.; Lavania A.; Lavezzi L.; Leithoff H.; Lellmann M.; Lenz T.; Li C.; Li C. H.; Li C.; Li D. M.; Li F.; Li G.; Li H.; Li H. B.; Li H. J.; Li J. L.; Li J. Q.; Li K.; Li L. K.; Li L.; Li P. L.; Li P. R.; Li S. Y.; Li W. D.; Li W. G.; Li X. H.; Li X. L.; Li Z. Y.; Liang H.; Liang H.; Liang Y. F.; Liang Y. T.; Liao G. R.; Liao L. Z.; Libby J.; Lin C. X.; Liu B.; Liu B. J.; Liu C. X.; Liu D.; Liu D. Y.; Liu F. H.; Liu F.;
Search for the X (2370) and observation of eta(c) -> eta eta eta ' in J/psi -> gamma eta eta eta '
Using a sample of 1.31×109 J/ψ events collected with the BESIII detector, we perform a study of J/ψ→γηηη′ to search for the X(2370) and ηc in the ηηη′ invariant mass distribution. No significant signal for the X(2370) is observed, and we set an upper limit for the product branching fraction of B(J/ψ→γX(2370)·B(X(2370)→ηηη′)<9.2×10-6 at the 90% confidence level. A clear ηc signal is observed for the first time, yielding a product branching fraction of B(J/ψ→γηc)·B(ηc→ηηη′)=(4.86±0.62(stat)±0.45(sys))×10-5.
- University of Ferrara Italy
- THE CHANCELLOR, MASTERS AND SCHOLARS OF THE UNIVERSITY OF OXFORD United Kingdom
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selected citations
Citations provided by BIP!
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
Citations provided by BIP!popularityPopularity provided by BIP!
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
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