Study of e( )e(-) -> Upsilon(1S, 2S)eta and e( )e(-) -> Upsilon(1S)eta ' at root s=10.866 GeV with the Belle detector

E Kovalenko; A Garmash; P Krokovny; I Adachi; H Aihara; DM Asner; V Aulchenko; T Aushev; R Ayad; V Babu; S Bahinipati; P Behera; J Bennett; M Bessner; T Bilka; J Biswal; A Bobrov; A Bondar; G Bonvicini; A Bozek; M Bracko; TE Browder; M Campajola; L Cao; D Cervenkov; M-C Chang; BG Cheon; K Chilikin; HE Cho; K Cho; S-J Cho; S-K Choi; Y Choi; S Choudhury; D Cinabro; S Cunliffe; S Das; G De Nardo; F Di Capua; Z Dolezal; T Dong; S Eidelman; D Epifanov; T Ferber; A Frey; BG Fulsom; R Garg; V Gaur; N Gabyshev; A Giri; P Goldenzweig; D Greenwald; K Gudkova; C Hadjivasiliou; T Hara; K Hayasaka; W-S Hou; C-L Hsu; T Iijima; K Inami; A Ishikawa; R Itoh; M Iwasaki; WW Jacobs; Y Jin; KK Joo; G Karyan; H Kichimi; C Kiesling; CH Kim; DY Kim; K-H Kim; SH Kim; Y-K Kim; K Kinoshita; P Kodys; T Konno; A Korobov; S Korpar; P Krizan; R Kroeger; T Kuhr; M Kumar; R Kumar; K Kumara; A Kuzmin; Y-J Kwon; K Lalwani; JS Lange; SC Lee; YB Li; L Li Gioi; J Libby; K Lieret; D Liventsev; C MacQueen; M Masuda; T Matsuda; D Matvienko; M Merola; F Metzner; K Miyabayashi; R Mizuk; GB Mohanty; M Nakao; A Natochii; L Nayak; M Niiyama; NK Nisar; S Nishida; K Ogawa; S Ogawa; H Ono; P Oskin; P Pakhlov; G Pakhlova; S Pardi; H Park; S-H Park; S Patra; S Paul; TK Pedlar; R Pestotnik; LE Piilonen; T Podobnik; E Prencipe; MT Prim; A Rabusov; M Rohrken; A Rostomyan; N Rout; G Russo; D Sahoo; Y Sakai; S Sandilya; A Sangal; T Sanuki; V Savinov; G Schnell; C Schwanda; Y Seino; K Senyo; ME Sevior; C Sharma; J-G Shiu; B Shwartz; A Sokolov; E Solovieva; M Staric; ZS Stottler; M Sumihama; T Sumiyoshi; W Sutcliffe; M Takizawa; U Tamponi; K Tanida; F Tenchini; K Trabelsi; M Uchida; T Uglov; Y Unno; K Uno; S Uno; P Urquijo; Y Usov; R Van Tonder; G Varner; A Vinokurova; E Waheed; CH Wang; M-Z Wang; P Wang; M Watanabe; O Werbycka; E Won; W Yan; SB Yang; H Ye; JH Yin; Y Yusa; ZP Zhang; V Zhilich; V Zhukova

Journal article

Study of e( )e(-) -> Upsilon(1S, 2S)eta and e( )e(-) -> Upsilon(1S)eta ' at root s=10.866 GeV with the Belle detector

E Kovalenko, A Garmash, P Krokovny, I Adachi, H Aihara, DM Asner, V Aulchenko, T Aushev, R Ayad, V Babu, S Bahinipati, P Behera, J Bennett, M Bessner, T Bilka, J Biswal, A Bobrov, A Bondar, G Bonvicini, A Bozek Show all

PHYSICAL REVIEW D | AMER PHYSICAL SOC | Published : 2021

DOI: 10.1103/PhysRevD.104.112006

Abstract

We report the first observation of the processes e+e-→D(1S,2S)η at s=10.866 GeV, with significance exceeding 10σ for both processes. The measured Born cross sections are σ(e+e-→D(2S)η)=2.07±0.21±0.19 pb, and σ(e+e-→D(1S)η)=0.42±0.08±0.04 pb. We also set the upper limit on the cross section of the process e+e-→D(1S)η′ to be σ(e+e-→D(1S)η′)<0.037 pb at 90% C.L. The results are obtained with the data sample collected with the Belle detector at the KEKB asymmetric-energy e+e- collider in the energy range from 10.63 to 11.02 GeV.

University of Melbourne Researchers

Martin Sevior Author Physics

Phillip Urquijo Author Physics

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Grants

Awarded by Australian Research Council

Awarded by FWF Austrian Science Fund

Awarded by National Natural Science Foundation of China

Awarded by Key Research Program of Frontier Sciences, Chinese Academy of Sciences (CAS)

Awarded by Shanghai Science and Technology Committee (STCSM)

Awarded by Ministry of Education, Youth and Sports of the Czech Republic

Awarded by Horizon 2020 ERC Advanced Grant

Awarded by ERC

Awarded by Department of Atomic Energy

Awarded by National Research Foundation (NRF) of Korea

Awarded by Ministry of Science and Higher Education of the Russian Federation

Awarded by University of Tabuk

Awarded by Slovenian Research Agency

Funding Acknowledgements

We thank the KEKB group for the excellent operation of the accelerator; the KEK cryogenics group for the efficient operation of the solenoid; and the KEK computer group, and the Pacific Northwest National Laboratory (PNNL) Environmental Molecular Sciences Laboratory (EMSL) computing group for strong computing support; and the National Institute of Informatics, and Science Information NETwork 5 (SINET5) for valuable network support. We acknowledge support from the Ministry of Education, Culture, Sports, Science, and Technology (MEXT) of Japan, the Japan Society for the Promotion of Science (JSPS), and the Tau-Lepton Physics Research Center of Nagoya University; the Australian Research Council including Grants No. DP180102629, No. DP170102389, No. DP170102204, No. DP150103061, and No. FT130100303; Austrian Federal Ministry of Education, Science and Research (FWF) and FWF Austrian Science Fund No. P 31361-N36; the National Natural Science Foundation of China under Contracts No. 11435013, No. 11475187, No. 11521505, No. 11575017, No. 11675166, and No. 11705209; Key Research Program of Frontier Sciences, Chinese Academy of Sciences (CAS), Grant No. QYZDJ-SSW-SLH011; the CAS Center for Excellence in Particle Physics (CCEPP); the Shanghai Science and Technology Committee (STCSM) under Grant No. 19ZR1403000; the Ministry of Education, Youth and Sports of the Czech Republic under Contract No. LTT17020; Horizon 2020 ERC Advanced Grant No. 884719 and ERC Starting Grant No. 947006 "InterLeptons" (European Union); the Carl Zeiss Foundation, the Deutsche Forschungsgemeinschaft, the Excellence Cluster Universe, and the VolkswagenStiftung; the Department of Atomic Energy (Project Identification No. RTI 4002) and the Department of Science and Technology of India; the Istituto Nazionale di Fisica Nucleare of Italy; National Research Foundation (NRF) of Korea Grants No. 2016R1D1A1B01010135, No. 2016R1D1A1B02012900, No. 2018R1A2B3003643, No. 2018R1A6A1A06024970, No. 2019K1A3A7A09033840, No. 2019R1I1A3A01058933, No. 2021R1A6A1A03043957, No. 2021R1F1A1060423, and No. 2021R1F1A1064008; Radiation Science Research Institute, Foreign Large-size Research Facility Application Supporting project, the Global Science Experimental Data Hub Center of the Korea Institute of Science and Technology Information and KREONET/GLORIAD; the Polish Ministry of Science and Higher Education and the National Science Center; the Ministry of Science and Higher Education of the Russian Federation, Agreement No. 14.W03.31.0026, and the HSE University Basic Research Program, Moscow; University of Tabuk Research Grants No. S-1440-0321, No. S-0256-1438, and No. S-0280-1439 (Saudi Arabia); the Slovenian Research Agency Grants No. J1-9124 and No. P1-0135; Ikerbasque, Basque Foundation for Science, Spain; the Swiss National Science Foundation; the Ministry of Education and the Ministry of Science and Technology of Taiwan; and the United States Department of Energy and the National Science Foundation.