Search for X(1870) via the decay J/ψ→ωK+K−η

M Ablikim,M N Achasov,P Adlarson,O Afedulidis,X C Ai,R Aliberti,A Amoroso,Q An,Y Bai,O Bakina,I Balossino,Y Ban,H.-R Bao,V Batozskaya,K Begzsuren,N Berger,M Berlowski,M Bertani,D Bettoni,F Bianchi,E Bianco,A Bortone,I Boyko,R A Briere,A Brueggemann,H Cai,X Cai,A Calcaterra,G F Cao,N Cao,S A Cetin,X Y Chai,J F Chang,G R Che,G Chelkov,C Chen,C H Chen,Chao Chen,G Chen,H S Chen,H Y Chen,M L Chen,S J Chen,S L Chen,S M Chen,T Chen,X R Chen,X T Chen,Y B Chen,Y Q Chen,Z J Chen,Z Y Chen,S K Choi,G Cibinetto,F Cossio,J J Cui,H L Dai,J P Dai,A Dbeyssi,R E De Boer,D Dedovich,C Q Deng,Z Y Deng,A Denig,I Denysenko,M Destefanis,F De Mori,B Ding,X X Ding,Y Ding,Y Ding,J Dong,L Y Dong,M Y Dong,X Dong,M C Du,S X Du,Y Y Duan,Z H Duan,P Egorov,Y H Fan,J Fang,J Fang,S S Fang,W X Fang,Y Fang,Y Q Fang,R Farinelli,L Fava,F Feldbauer,G Felici,C Q Feng,J H Feng,Y T Feng,M Fritsch,C D Fu,J L Fu,Y W Fu,H Gao,X B Gao,Y N Gao,Yang Gao,S Garbolino,I Garzia,L Ge,P T Ge,Z W Ge,C Geng,E M Gersabeck,A Gilman,K Goetzen,L Gong,W X Gong,W Gradl,S Gramigna,M Greco,M H Gu,Y T Gu,C Y Guan,A Q Guo,L B Guo,M J Guo,R P Guo,Y P Guo,A Guskov,J Gutierrez,K L Han,T T Han,F Hanisch,X Q Hao,F A Harris,K K He,K L He,F H Heinsius,C H Heinz,Y K Heng,C Herold,T Holtmann,P C Hong,G Y Hou,X T Hou,Y R Hou,Z L Hou,B Y Hu,H M Hu,J F Hu,S L Hu,T Hu,Y Hu,G S Huang,K X Huang,L Q Huang,X T Huang,Y P Huang,Y S Huang,T Hussain,F Hölzken,N Hüsken,N In Der Wiesche,J Jackson,S Janchiv,J H Jeong,Q Ji,Q P Ji,W Ji,X B Ji,X L Ji,Y Y Ji,X Q Jia,Z K Jia,D Jiang,H B Jiang,P C Jiang,S S Jiang,T J Jiang,X S Jiang,Y Jiang,J B Jiao,J K Jiao,Z Jiao,S Jin,Y Jin,M Q Jing,X M Jing,T Johansson,S Kabana,N Kalantar-Nayestanaki,X L Kang,X S Kang,M Kavatsyuk,B C Ke,V Khachatryan,A Khoukaz,R Kiuchi,O B Kolcu,B Kopf,M Kuessner,X Kui,N Kumar,A Kupsc,W Kühn,J J Lane,L Lavezzi,T T Lei,Z H Lei,M Lellmann,T Lenz,C Li,C Li,C H Li,Cheng Li,D M Li,F Li,G Li,H B Li,H J Li,H N Li,Hui Li,J R Li,J S Li,K Li,K L Li,L J Li,L K Li,Lei Li,M H Li,P R Li,Q M Li,Q X Li,R 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doi:10.1103/physrevd.110.052005

Search for X(1870) via the decay J/ψ→ωK+K−η

M Ablikim, M N Achasov + Show 667 more

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https://doi.org/10.1103/physrevd.110.052005

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Journal: Physical Review D	Publication Date: Sep 18, 2024
License type: CC BY 4.0

#Upper Limit #Confidence Level + Show 2 more

Abstract
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Abstract

Using a sample of (10087±44)×106 J/ψ events collected by the BESIII detector at the BEPCII collider, we search for the decay X(1870)→K+K−η via the J/ψ→ωK+K−η process for the first time. No significant X(1870) signal is observed. The upper limit on the branching fraction of the decay J/ψ→ωX(1870)→ωK+K−η is determined to be 9.55×10−7 at the 90% confidence level. In addition, the branching faction B(J/ψ→ωK+K−η) is measured to be (3.33±0.02(stat)±0.12(syst))×10−4. Published by the American Physical Society 2024

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