학술논문
Inclusive study of bottomonium production in association with an $$\eta $$ η meson in $$e^+e^-$$ e+e- annihilations near $$\varUpsilon (5S)$$ Υ(5S)
Document Type
article
Author
U. Tamponi; E. Guido; R. Mussa; I. Adachi; H. Aihara; S. Al Said; D. M. Asner; H. Atmacan; V. Aulchenko; T. Aushev; R. Ayad; V. Babu; I. Badhrees; A. M. Bakich; V. Bansal; E. Barberio; P. Behera; M. Berger; V. Bhardwaj; B. Bhuyan; J. Biswal; A. Bondar; A. Bozek; M. Bračko; T. E. Browder; D. Červenkov; A. Chen; B. G. Cheon; K. Chilikin; K. Cho; Y. Choi; D. Cinabro; S. Cunliffe; T. Czank; N. Dash; S. Di Carlo; Z. Doležal; Z. Drásal; S. Eidelman; D. Epifanov; J. E. Fast; T. Ferber; B. G. Fulsom; R. Garg; V. Gaur; N. Gabyshev; A. Garmash; M. Gelb; P. Goldenzweig; J. Haba; T. Hara; K. Hayasaka; H. Hayashii; M. T. Hedges; W.-S. Hou; K. Inami; G. Inguglia; A. Ishikawa; R. Itoh; M. Iwasaki; Y. Iwasaki; I. Jaegle; H. B. Jeon; Y. Jin; K. K. Joo; T. Julius; K. H. Kang; T. Kawasaki; H. Kichimi; D. Y. Kim; H. J. Kim; J. B. Kim; K. T. Kim; S. H. Kim; K. Kinoshita; P. Kodyš; S. Korpar; D. Kotchetkov; P. Križan; R. Kroeger; P. Krokovny; R. Kulasiri; Y.-J. Kwon; I. S. Lee; S. C. Lee; L. K. Li; Y. Li; L. Li Gioi; J. Libby; D. Liventsev; T. Luo; M. Masuda; T. Matsuda; D. Matvienko; M. Merola; H. Miyata; R. Mizuk; G. B. Mohanty; H. K. Moon; T. Mori; T. Nanut; K. J. Nath; Z. Natkaniec; M. Nayak; N. K. Nisar; S. Nishida; S. Okuno; H. Ono; Y. Onuki; P. Pakhlov; G. Pakhlova; B. Pal; H. Park; S. Paul; T. K. Pedlar; R. Pestotnik; L. E. Piilonen; M. Ritter; A. Rostomyan; G. Russo; Y. Sakai; M. Salehi; S. Sandilya; T. Sanuki; V. Savinov; O. Schneider; G. Schnell; C. Schwanda; Y. Seino; K. Senyo; O. Seon; M. E. Sevior; V. Shebalin; C. P. Shen; T.-A. Shibata; N. Shimizu; J.-G. Shiu; B. Shwartz; A. Sokolov; E. Solovieva; M. Starič; J. F. Strube; T. Sumiyoshi; M. Takizawa; K. Tanida; F. Tenchini; K. Trabelsi; M. Uchida; S. Uehara; T. Uglov; Y. Unno; S. Uno; P. Urquijo; C. Van Hulse; G. Varner; A. Vinokurova; V. Vorobyev; A. Vossen; B. Wang; C. H. Wang; M.-Z. Wang; P. Wang; X. L. Wang; M. Watanabe; Y. Watanabe; E. Widmann; E. Won; H. Ye; C. Z. Yuan; Y. Yusa; S. Zakharov; Z. P. Zhang; V. Zhilich; V. Zhukova; V. Zhulanov; A. Zupanc
Source
European Physical Journal C: Particles and Fields, Vol 78, Iss 8, Pp 1-10 (2018)
Subject
Language
English
ISSN
1434-6044
1434-6052
1434-6052
Abstract
Abstract We study bottomonium production in association with an $$\eta $$ η meson in $$e^+e^-$$ e+e- annihilations near the $$\varUpsilon (5S)$$ Υ(5S) , at a centre-of-mass energy of $$\sqrt{s}=10.866$$ s=10.866 GeV. The results are based on the 121.4 fb$$^{-1}$$ -1 data sample collected by the Belle experiment at the asymmetric-energy KEKB collider. Only the $$\eta $$ η meson is reconstructed and the missing-mass spectrum of $$\eta $$ η candidates is investigated. We observe the $$e^+e^-\rightarrow \eta \varUpsilon _J(1D)$$ e+e-→ηΥJ(1D) process and find evidence for the $$e^+e^-\rightarrow \eta \varUpsilon (2S)$$ e+e-→ηΥ(2S) process, while no significant signals of $$\varUpsilon (1S)$$ Υ(1S) , $$h_b(1P)$$ hb(1P) , nor $$h_b(2P)$$ hb(2P) are found. Cross sections for the studied processes are reported.