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Abstract
The first dedicated search for the ηc2(1D) is carried out using the decays B+→ ηc2(1D)K+, B0 → ηc2(1D), B0→ ηc2(1D)π−K+, and B+→ ηc2(1D)π+ with ηc2(1D) → hcγ. No significant signal is found. For the ηc2(1D) mass range between 3795 and 3845 MeV/c2, the branching-fraction upper limits are determined to be ℬ(B+→ ηc2(1D)K+) × ℬ(ηc2(1D) → hcγ) < 3.7 × 10−5, ℬ(B0→ ηc2(1D)K0) × ℬ(ηc2(1D) → hcγ) < 3.5 × 10−5, ℬ(B0→ ηc2(1D)π−K+) × ℬ(ηc2(1D) → hcγ) < 1.0 × 10−4, and ℬ(B+→ ηc2(1D)π+) × ℬ(ηc2(1D) → hcγ) < 1.1 × 10−4 at 90% C.L. The analysis is based on the 711 fb−1 data sample collected on the ϒ(4S) resonance by the Belle detector, which operated at the KEKB asymmetric-energy e+e− collider.
Details
1 P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow, Russia (GRID:grid.425806.d) (ISNI:0000 0001 0656 6476)
2 High Energy Accelerator Research Organization (KEK), Tsukuba, Japan (GRID:grid.410794.f) (ISNI:0000 0001 2155 959X); SOKENDAI (The Graduate University for Advanced Studies), Hayama, Japan (GRID:grid.275033.0) (ISNI:0000 0004 1763 208X)
3 University of Tokyo, Department of Physics, Tokyo, Japan (GRID:grid.26999.3d) (ISNI:0000 0001 2151 536X)
4 University of Tabuk, Department of Physics, Faculty of Science, Tabuk, Saudi Arabia (GRID:grid.440760.1) (ISNI:0000 0004 0419 5685); King Abdulaziz University, Department of Physics, Faculty of Science, Jeddah, Saudi Arabia (GRID:grid.412125.1) (ISNI:0000 0001 0619 1117)
5 Brookhaven National Laboratory, Upton, U.S.A. (GRID:grid.202665.5) (ISNI:0000 0001 2188 4229)
6 Budker Institute of Nuclear Physics SB RAS, Novosibirsk, Russia (GRID:grid.418495.5); Novosibirsk State University, Novosibirsk, Russia (GRID:grid.4605.7) (ISNI:0000000121896553)
7 Higher School of Economics (HSE), Moscow, Russia (GRID:grid.410682.9) (ISNI:0000 0004 0578 2005)
8 University of Tabuk, Department of Physics, Faculty of Science, Tabuk, Saudi Arabia (GRID:grid.440760.1) (ISNI:0000 0004 0419 5685)
9 Deutsches Elektronen–Synchrotron, Hamburg, Germany (GRID:grid.7683.a) (ISNI:0000 0004 0492 0453)
10 Indian Institute of Technology Bhubaneswar, Satya Nagar, India (GRID:grid.459611.e) (ISNI:0000 0004 1774 3038)
11 Indian Institute of Technology Madras, Chennai, India (GRID:grid.417969.4) (ISNI:0000 0001 2315 1926)
12 Georg-August-Universität Göttingen, II. Physikalisches Institut, Göttingen, Germany (GRID:grid.7450.6) (ISNI:0000 0001 2364 4210)
13 Institute for High Energy Physics, Protvino, Russia (GRID:grid.424823.b) (ISNI:0000 0004 0620 440X)
14 University of Mississippi, University, U.S.A. (GRID:grid.251313.7) (ISNI:0000 0001 2169 2489)
15 Indian Institute of Science Education and Research Mohali, Nagar, India (GRID:grid.458435.b) (ISNI:0000 0004 0406 1521)
16 Charles University, Faculty of Mathematics and Physics, Prague, Czech Republic (GRID:grid.4491.8) (ISNI:0000 0004 1937 116X)
17 J. Stefan Institute, Ljubljana, Slovenia (GRID:grid.11375.31) (ISNI:0000 0001 0706 0012)
18 Wayne State University, Detroit, U.S.A. (GRID:grid.254444.7) (ISNI:0000 0001 1456 7807)
19 H. Niewodniczanski Institute of Nuclear Physics, Krakow, Poland (GRID:grid.418860.3) (ISNI:0000 0001 0942 8941)
20 J. Stefan Institute, Ljubljana, Slovenia (GRID:grid.11375.31) (ISNI:0000 0001 0706 0012); University of Maribor, Maribor, Slovenia (GRID:grid.8647.d) (ISNI:0000 0004 0637 0731)
21 University of Hawaii, Honolulu, U.S.A. (GRID:grid.410445.0) (ISNI:0000 0001 2188 0957)
22 INFN — Sezione di Napoli, Napoli, Italy (GRID:grid.470211.1); Università di Napoli Federico II, Napoli, Italy (GRID:grid.4691.a) (ISNI:0000 0001 0790 385X)
23 University of Bonn, Bonn, Germany (GRID:grid.10388.32) (ISNI:0000 0001 2240 3300)
24 Fu Jen Catholic University, Department of Physics, Taipei, Taiwan (GRID:grid.256105.5) (ISNI:0000 0004 1937 1063)
25 Max-Planck-Institut für Physik, München, Germany (GRID:grid.435824.c) (ISNI:0000 0001 2375 0603)
26 National Central University, Chung-li, Taiwan (GRID:grid.37589.30) (ISNI:0000 0004 0532 3167)
27 Hanyang University, Department of Physics and Institute of Natural Sciences, Seoul, South Korea (GRID:grid.49606.3d) (ISNI:0000 0001 1364 9317)
28 Korea Institute of Science and Technology Information, Daejeon, South Korea (GRID:grid.249964.4) (ISNI:0000 0001 0523 5253)
29 Gyeongsang National University, Jinju, South Korea (GRID:grid.256681.e) (ISNI:0000 0001 0661 1492)
30 Sungkyunkwan University, Suwon, South Korea (GRID:grid.264381.a) (ISNI:0000 0001 2181 989X)
31 Indian Institute of Technology Hyderabad, Telangana, India (GRID:grid.459612.d) (ISNI:0000 0004 1767 065X)
32 Fudan University, Key Laboratory of Nuclear Physics and Ion-beam Application (MOE) and Institute of Modern Physics, Shanghai, China (GRID:grid.8547.e) (ISNI:0000 0001 0125 2443)
33 Budker Institute of Nuclear Physics SB RAS, Novosibirsk, Russia (GRID:grid.418495.5); Novosibirsk State University, Novosibirsk, Russia (GRID:grid.4605.7) (ISNI:0000000121896553); P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow, Russia (GRID:grid.425806.d) (ISNI:0000 0001 0656 6476)
34 Pacific Northwest National Laboratory, Richland, U.S.A. (GRID:grid.451303.0) (ISNI:0000 0001 2218 3491)
35 University of Melbourne, School of Physics, Melbourne, Australia (GRID:grid.1008.9) (ISNI:0000 0001 2179 088X)
36 Panjab University, Chandigarh, India (GRID:grid.261674.0) (ISNI:0000 0001 2174 5640)
37 Virginia Polytechnic Institute and State University, Blacksburg, U.S.A. (GRID:grid.438526.e) (ISNI:0000 0001 0694 4940)
38 Karlsruher Institut für Technologie, Institut für Experimentelle Teilchenphysik, Karlsruhe, Germany (GRID:grid.7892.4) (ISNI:0000 0001 0075 5874)
39 J. Stefan Institute, Ljubljana, Slovenia (GRID:grid.11375.31) (ISNI:0000 0001 0706 0012); University of Ljubljana, Faculty of Mathematics and Physics, Ljubljana, Slovenia (GRID:grid.8954.0) (ISNI:0000 0001 0721 6013)
40 Niigata University, Niigata, Japan (GRID:grid.260975.f) (ISNI:0000 0001 0671 5144)
41 Nara Women’s University, Nara, Japan (GRID:grid.174568.9) (ISNI:0000 0001 0059 3836)
42 National Taiwan University, Department of Physics, Taipei, Taiwan (GRID:grid.19188.39) (ISNI:0000 0004 0546 0241)
43 University of Sydney, School of Physics, Sydney, Australia (GRID:grid.1013.3) (ISNI:0000 0004 1936 834X)
44 Nagoya University, Graduate School of Science, Nagoya, Japan (GRID:grid.27476.30) (ISNI:0000 0001 0943 978X)
45 Institute of High Energy Physics, Vienna, Austria (GRID:grid.450258.e) (ISNI:0000 0004 0625 7405)
46 SOKENDAI (The Graduate University for Advanced Studies), Hayama, Japan (GRID:grid.275033.0) (ISNI:0000 0004 1763 208X); High Energy Accelerator Research Organization (KEK), Tsukuba, Japan (GRID:grid.410794.f) (ISNI:0000 0001 2155 959X)
47 Osaka City University, Osaka, Japan (GRID:grid.261445.0) (ISNI:0000 0001 1009 6411)
48 High Energy Accelerator Research Organization (KEK), Tsukuba, Japan (GRID:grid.410794.f) (ISNI:0000 0001 2155 959X)
49 Indiana University, Bloomington, U.S.A. (GRID:grid.411377.7) (ISNI:0000 0001 0790 959X)
50 Beihang University, Beijing, China (GRID:grid.64939.31) (ISNI:0000 0000 9999 1211)
51 Chonnam National University, Gwangju, South Korea (GRID:grid.14005.30) (ISNI:0000 0001 0356 9399)
52 Tata Institute of Fundamental Research, Mumbai, India (GRID:grid.22401.35) (ISNI:0000 0004 0502 9283)
53 Kitasato University, Sagamihara, Japan (GRID:grid.410786.c) (ISNI:0000 0000 9206 2938)
54 Soongsil University, Seoul, South Korea (GRID:grid.263765.3) (ISNI:0000 0004 0533 3568)
55 Yonsei University, Seoul, South Korea (GRID:grid.15444.30) (ISNI:0000 0004 0470 5454)
56 University of Cincinnati, Cincinnati, U.S.A. (GRID:grid.24827.3b) (ISNI:0000 0001 2179 9593)
57 University of Maribor, Maribor, Slovenia (GRID:grid.8647.d) (ISNI:0000 0004 0637 0731); J. Stefan Institute, Ljubljana, Slovenia (GRID:grid.11375.31) (ISNI:0000 0001 0706 0012)
58 University of Ljubljana, Faculty of Mathematics and Physics, Ljubljana, Slovenia (GRID:grid.8954.0) (ISNI:0000 0001 0721 6013); J. Stefan Institute, Ljubljana, Slovenia (GRID:grid.11375.31) (ISNI:0000 0001 0706 0012)
59 Ludwig Maximilians University, Munich, Germany (GRID:grid.5252.0) (ISNI:0000 0004 1936 973X)
60 Kennesaw State University, Kennesaw, U.S.A. (GRID:grid.258509.3) (ISNI:0000 0000 9620 8332)
61 Punjab Agricultural University, Ludhiana, India (GRID:grid.412577.2) (ISNI:0000 0001 2176 2352)
62 Malaviya National Institute of Technology Jaipur, Jaipur, India (GRID:grid.444471.6) (ISNI:0000 0004 1764 2536)
63 Justus-Liebig-Universität Gießen, Gießen, Germany (GRID:grid.8664.c) (ISNI:0000 0001 2165 8627)
64 Kyungpook National University, Daegu, South Korea (GRID:grid.258803.4) (ISNI:0000 0001 0661 1556)
65 Chinese Academy of Sciences, Institute of High Energy Physics, Beijing, China (GRID:grid.9227.e) (ISNI:0000000119573309)
66 Peking University, Beijing, China (GRID:grid.11135.37) (ISNI:0000 0001 2256 9319)
67 Virginia Polytechnic Institute and State University, Blacksburg, U.S.A. (GRID:grid.438526.e) (ISNI:0000 0001 0694 4940); High Energy Accelerator Research Organization (KEK), Tsukuba, Japan (GRID:grid.410794.f) (ISNI:0000 0001 2155 959X)
68 University of Tokyo, Earthquake Research Institute, Tokyo, Japan (GRID:grid.26999.3d) (ISNI:0000 0001 2151 536X)
69 University of Miyazaki, Miyazaki, Japan (GRID:grid.410849.0) (ISNI:0000 0001 0657 3887)
70 P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow, Russia (GRID:grid.425806.d) (ISNI:0000 0001 0656 6476); Higher School of Economics (HSE), Moscow, Russia (GRID:grid.410682.9) (ISNI:0000 0004 0578 2005)
71 Seoul National University, Seoul, South Korea (GRID:grid.31501.36) (ISNI:0000 0004 0470 5905)
72 INFN — Sezione di Torino, Torino, Italy (GRID:grid.470222.1)
73 Tel Aviv University, School of Physics and Astronomy, Tel Aviv, Israel (GRID:grid.12136.37) (ISNI:0000 0004 1937 0546)
74 University of Pittsburgh, Pittsburgh, U.S.A. (GRID:grid.21925.3d) (ISNI:0000 0004 1936 9000)
75 Toho University, Funabashi, Japan (GRID:grid.265050.4) (ISNI:0000 0000 9290 9879)
76 Nippon Dental University, Niigata, Japan (GRID:grid.412196.9) (ISNI:0000 0001 2293 6406); Niigata University, Niigata, Japan (GRID:grid.260975.f) (ISNI:0000 0001 0671 5144)
77 P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow, Russia (GRID:grid.425806.d) (ISNI:0000 0001 0656 6476); Moscow Physical Engineering Institute, Moscow, Russia (GRID:grid.425806.d)
78 INFN — Sezione di Napoli, Napoli, Italy (GRID:grid.470211.1)
79 Technische Universität München, Department of Physics, Garching, Germany (GRID:grid.6936.a) (ISNI:0000000123222966)
80 Luther College, Iowa, U.S.A. (GRID:grid.2294.d) (ISNI:0000 0004 0394 7857)
81 Forschungszentrum Jülich, Jülich, Germany (GRID:grid.8385.6) (ISNI:0000 0001 2297 375X)
82 Università di Napoli Federico II, Napoli, Italy (GRID:grid.4691.a) (ISNI:0000 0001 0790 385X)
83 Tohoku University, Department of Physics, Sendai, Japan (GRID:grid.69566.3a) (ISNI:0000 0001 2248 6943)
84 University of the Basque Country UPV/EHU, Bilbao, Spain (GRID:grid.11480.3c) (ISNI:0000000121671098); IKERBASQUE, Basque Foundation for Science, Bilbao, Spain (GRID:grid.424810.b) (ISNI:0000 0004 0467 2314)
85 Yamagata University, Yamagata, Japan (GRID:grid.268394.2) (ISNI:0000 0001 0674 7277)
86 Tokyo Metropolitan University, Tokyo, Japan (GRID:grid.265074.2) (ISNI:0000 0001 1090 2030)
87 Showa Pharmaceutical University, Tokyo, Japan (GRID:grid.412579.c) (ISNI:0000 0001 2180 2836); J-PARC Branch, KEK Theory Center, High Energy Accelerator Research Organization (KEK), Tsukuba, Japan (GRID:grid.410794.f) (ISNI:0000 0001 2155 959X); Theoretical Research Division, Nishina Center, RIKEN, Saitama, Japan (GRID:grid.7597.c) (ISNI:0000000094465255)
88 Japan Atomic Energy Agency, Advanced Science Research Center, Naka, Japan (GRID:grid.20256.33) (ISNI:0000 0001 0372 1485)
89 LAL, Univ. Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, Orsay, France (GRID:grid.462450.1) (ISNI:0000 0001 0278 4900)
90 Tokyo Institute of Technology, Tokyo, Japan (GRID:grid.32197.3e) (ISNI:0000 0001 2179 2105)
91 National United University, Miao Li, Taiwan (GRID:grid.412103.5) (ISNI:0000 0004 0622 7206)
92 Korea University, Seoul, South Korea (GRID:grid.222754.4) (ISNI:0000 0001 0840 2678)
93 Soochow University, Suzhou, China (GRID:grid.263761.7) (ISNI:0000 0001 0198 0694)
94 University of Science and Technology of China, Hefei, China (GRID:grid.59053.3a) (ISNI:0000000121679639)




