4.4 Article

First search for the eta(c2)(1D) in B decays at Belle

Journal

JOURNAL OF HIGH ENERGY PHYSICS
Volume -, Issue 5, Pages -

Publisher

SPRINGER
DOI: 10.1007/JHEP05(2020)034

Keywords

e(+)-e(-) Experiments; Quarkonium; Spectroscopy

Funding

  1. Ministry of Education, Culture, Sports, Science, and Technology (MEXT) of Japan
  2. Japan Society for the Promotion of Science (JSPS)
  3. Tau-Lepton Physics Research Center of Nagoya University
  4. Australian Research Council [DP180102629, DP170102389, DP170102204, DP150103061, FT130100303]
  5. Austrian Science Fund (FWF)
  6. National Natural Science Foundation of China [11435013, 11475187, 11521505, 11575017, 11675166, 11705209]
  7. Key Research Program of Frontier Sciences, Chinese Academy of Sciences (CAS) [QYZDJ-SSW-SLH011]
  8. CAS Center for Excellence in Particle Physics (CCEPP)
  9. Shanghai Pujiang Program [18PJ1401000]
  10. Ministry of Education, Youth and Sports of the Czech Republic [LTT17020]
  11. Carl Zeiss Foundation
  12. Deutsche Forschungsgemeinschaft
  13. Excellence Cluster Universe
  14. VolkswagenStiftung
  15. Department of Science and Technology of India
  16. Istituto Nazionale di Fisica Nucleare of Italy
  17. National Research Foundation (NRF) of Korea [2016R1D1A1B01010135, 2016R1D1A1B02012900, 2018R1A2B3003643, 2018R1A6A1A06024970, 2018R1D1A1B07047294, 2019K1A3A7A09033840, 2019R1I1A3A01058933]
  18. Radiation Science Research Institute, Foreign Large-size Research Facility Application Supporting project
  19. Global Science Experimental Data Hub Center of the Korea Institute of Science and Technology Information and KREONET/GLORIAD
  20. Polish Ministry of Science and Higher Education
  21. National Science Center
  22. Russian Foundation for Basic Research [18-32-00277]
  23. University of Tabuk (Saudi Arabia) [S-1440-0321, S-0256-1438, S-0280-1439]
  24. Slovenian Research Agency
  25. Ikerbasque, Basque Foundation for Science, Spain
  26. Swiss National Science Foundation
  27. Ministry of Education
  28. Ministry of Science and Technology of Taiwan
  29. United States Department of Energy
  30. National Science Foundation

Ask authors/readers for more resources

The first dedicated search for the eta(c2)(1D) is carried out using the decays B+-> eta(c2)(1D)K+, B-0 -> eta(c2)(1D)KS0 with eta(c2)(1D) -> h(c)gamma. No significant signal is found. For the eta(c2)(1D) mass range between 3795 and 3845 MeV/c(2), the branching-fraction upper limits are determined to be & x212c;(B+-> eta(c2)(1D)K+) x & x212c;(eta(c2)(1D) -> h(c)gamma) < 3.7 x 10(-5), & x212c;(B-0 -> eta(c2)(1D)K-0) x & x212c;(eta(c2)(1D) -> h(c)gamma) < 3.5 x 10(-5), & x212c;(B-0 -> eta(c2)(1D)pi K--(+)) x & x212c;(eta(c2)(1D) -> h(c)gamma) < 1.0 x 10(-4), and & x212c;(B+-> eta(c2)(1D)pi(+)KS0) x & x212c;(eta(c2)(1D) -> h(c)gamma) < 1.1 x 10(-4) at 90% C.L. The analysis is based on the 711 fb(-1) data sample collected on the & x3d2;(4S) resonance by the Belle detector, which operated at the KEKB asymmetric-energy e(+)e(-) collider.

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