Search for the double-charmonium state with ηcJ/ψ at Belle-Reference-Cited by-同舟云学术

Search for the double-charmonium state with ηcJ/ψ at Belle

Published:2023-08-18 Issue:8 Volume:2023 Page:
ISSN:1029-8479
Container-title:Journal of High Energy Physics
language:en
Short-container-title:J. High Energ. Phys.

Author:

,Yin J. H.^ORCID,Li Y. B.^ORCID,Won E.^ORCID,Adachi I.^ORCID,Aihara H.^ORCID,Al Said S.^ORCID,Asner D. M.^ORCID,Aushev T.^ORCID,Ayad R.^ORCID,Babu V.^ORCID,Banerjee Sw.^ORCID,Behera P.^ORCID,Belous K.^ORCID,Bennett J.^ORCID,Bessner M.^ORCID,Bilka T.^ORCID,Biswas D.^ORCID,Bodrov D.^ORCID,Bonvicini G.^ORCID,Borah J.^ORCID,Bozek A.^ORCID,Bračko M.^ORCID,Branchini P.^ORCID,Browder T. E.^ORCID,Budano A.^ORCID,Červenkov D.^ORCID,Chang M.-C.^ORCID,Cheon B. G.^ORCID,Chilikin K.^ORCID,Cho H. E.^ORCID,Cho K.^ORCID,Choi S.-K.^ORCID,Choi Y.^ORCID,Choudhury S.^ORCID,Cinabro D.^ORCID,Cochran J.^ORCID,Das S.^ORCID,De Nardo G.^ORCID,De Pietro G.^ORCID,Dhamija R.^ORCID,Di Capua F.^ORCID,Dingfelder J.^ORCID,Doležal Z.^ORCID,Dong T. V.^ORCID,Epifanov D.^ORCID,Ferber T.^ORCID,Ferlewicz D.^ORCID,Fulsom B. G.^ORCID,Gaur V.^ORCID,Giri A.^ORCID,Goldenzweig P.^ORCID,Graziani E.^ORCID,Gu T.^ORCID,Guan Y.^ORCID,Gudkova K.^ORCID,Hadjivasiliou C.^ORCID,Halder S.^ORCID,Hara T.^ORCID,Hayasaka K.^ORCID,Hayashii H.^ORCID,Herrmann D.^ORCID,Hou W.-S.^ORCID,Hsu C.-L.^ORCID,Iijima T.^ORCID,Ipsita N.^ORCID,Ishikawa A.^ORCID,Itoh R.^ORCID,Iwasaki M.^ORCID,Jacobs W. W.^ORCID,Ji Q. P.^ORCID,Jia S.^ORCID,Jin Y.^ORCID,Joo K. K.^ORCID,Kahn J.^ORCID,Kaliyar A. B.^ORCID,Kawasaki T.^ORCID,Kiesling C.^ORCID,Kim C. H.^ORCID,Kim D. Y.^ORCID,Kim K.-H.^ORCID,Kim Y.-K.^ORCID,Kindo H.^ORCID,Kinoshita K.^ORCID,Kodyš P.^ORCID,Korobov A.^ORCID,Korpar S.^ORCID,Kovalenko E.^ORCID,Križan P.^ORCID,Krokovny P.^ORCID,Kuhr T.^ORCID,Kumar M.^ORCID,Kumar R.^ORCID,Kumara K.^ORCID,Lam T.^ORCID,Lange J. S.^ORCID,Lee S. C.^ORCID,Li L. K.^ORCID,Li Y.^ORCID,Libby J.^ORCID,Lieret K.^ORCID,Lin Y.-R.^ORCID,Liventsev D.^ORCID,Masuda M.^ORCID,Matsuda T.^ORCID,Matvienko D.^ORCID,Maurya S. K.^ORCID,Meier F.^ORCID,Merola M.^ORCID,Metzner F.^ORCID,Mizuk R.^ORCID,Mohanty G. B.^ORCID,Mussa R.^ORCID,Nakamura I.^ORCID,Narwal D.^ORCID,Natkaniec Z.^ORCID,Natochii A.^ORCID,Nayak L.^ORCID,Nayak M.^ORCID,Nisar N. K.^ORCID,Nishida S.^ORCID,Ogawa S.^ORCID,Ono H.^ORCID,Oskin P.^ORCID,Pakhlova G.^ORCID,Pardi S.^ORCID,Park H.^ORCID,Park J.^ORCID,Park S.-H.^ORCID,Passeri A.^ORCID,Patra S.^ORCID,Paul S.^ORCID,Pestotnik R.^ORCID,Piilonen L. E.^ORCID,Podobnik T.^ORCID,Prencipe E.^ORCID,Prim M. T.^ORCID,Rout N.^ORCID,Russo G.^ORCID,Sandilya S.^ORCID,Sangal A.^ORCID,Santelj L.^ORCID,Savinov V.^ORCID,Schnell G.^ORCID,Schwanda C.^ORCID,Seino Y.^ORCID,Senyo K.^ORCID,Shan W.^ORCID,Shapkin M.^ORCID,Sharma C.^ORCID,Shiu J.-G.^ORCID,Solovieva E.^ORCID,Starič M.^ORCID,Stottler Z. S.^ORCID,Sumihama M.^ORCID,Takizawa M.^ORCID,Tanida K.^ORCID,Tenchini F.^ORCID,Tiwary R.^ORCID,Uchida M.^ORCID,Uglov T.^ORCID,Unno Y.^ORCID,Uno S.^ORCID,Usov Y.^ORCID,Vahsen S. E.^ORCID,Varner G.^ORCID,Vinokurova A.^ORCID,Wang D.^ORCID,Wang E.^ORCID,Wang M.-Z.^ORCID,Wang X. L.^ORCID,Watanuki S.^ORCID,Werbycka O.^ORCID,Xu X.^ORCID,Yabsley B. D.^ORCID,Yan W.^ORCID,Yang S. B.^ORCID,Yelton J.^ORCID,Yook Y.^ORCID,Yuan C. Z.^ORCID,Zhang Z. P.^ORCID,Zhilich V.^ORCID,Zhukova V.^ORCID

Abstract

Abstract We measure the cross section of e+e− → ηcJ/ψ at the Υ(nS)(n = 1–5) on-resonance and 10.52 GeV off-resonance energy points using the full data sample collected by the Belle detector with an integrated luminosity of 955 fb−1. We also search for double charmonium production in e+e− → ηcJ/ψ via initial state radiation near the ηcJ/ψ threshold. No evident signal of the double charmonium state is found, but evidence for the e+e−→ ηcJ/ψ process is found with a statistical significance greater than 3.3σ near the ηcJ/ψ threshold. The average cross section near the threshold is measured and upper limits of cross sections are set for other regions.

Publisher

Springer Science and Business Media LLC

Subject

Nuclear and High Energy Physics

Link

https://link.springer.com/content/pdf/10.1007/JHEP08(2023)121.pdf

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