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Title: Evidence of Υ ( 1 S ) J / ψ + χ c 1 and search for double-charmonium production in Υ ( 1 S ) and Υ ( 2 S ) decays

Abstract

Using data samples of 102 × 10 6 Υ ( 1 S ) and 158 × 10 6 Υ ( 2 S ) events collected with the Belle detector, a first experimental search has been made for double-charmonium production in the exclusive decays Υ ( 1 S , 2 S ) J / ψ ( ψ ' ) + X , where X = η c , χ c J ( J = 0 , 1 , 2 ) , η c ( 2 S ) , X ( 3940 ) , and X ( 4160 ) . No significant signal is observed in the spectra of the mass recoiling against the reconstructed J / ψ or ψ ' except for the evidence of χ c 1 production with a significance of 4.6 σ for Υ ( 1 S ) J / ψ + χ c 1 . The measured branching fraction B ( Υ ( 1 S ) J / ψ + χ c 1 ) is [ 3.90 ± 1.21 ( stat ) ± 0.23 ( syst ) ] × 10 - 6 . The 90% C.L. upper limits on the branching fractions of the other modes having a significance of less than 3 σ are determined. In conclusion, these results are consistent with theoretical calculations using the nonrelativistic QCD factorization approach.

Authors:
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Publication Date:
Research Org.:
Virginia Polytechnic Inst. and State Univ. (Virginia Tech), Blacksburg, VA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP)
Contributing Org.:
Belle Collaboration
OSTI Identifier:
1594452
Alternate Identifier(s):
OSTI ID: 1213900
Grant/Contract Number:  
SC0009973; YWF-14-WLXY-013; LG14034
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review. D, Particles, Fields, Gravitation and Cosmology
Additional Journal Information:
Journal Volume: 90; Journal Issue: 11; Journal ID: ISSN 1550-7998
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Yang, S. D., Shen, C. P., Ban, Y., Abdesselam, A., Adachi, I., Aihara, H., Al Said, S., Arinstein, K., Asner, D. M., Aulchenko, V., Aushev, T., Ayad, R., Bakich, A. M., Bansal, V., Behera, P., Bhuyan, B., Bobrov, A., Bozek, A., Bračko, M., Browder, T. E., Červenkov, D., Chekelian, V., Chen, A., Cheon, B. G., Chilikin, K., Chistov, R., Cho, K., Chobanova, V., Choi, S. -K., Choi, Y., Cinabro, D., Dalseno, J., Danilov, M., Dingfelder, J., Doležal, Z., Drásal, Z., Drutskoy, A., Dutta, K., Eidelman, S., Farhat, H., Fast, J. E., Ferber, T., Gaur, V., Gabyshev, N., Ganguly, S., Garmash, A., Gillard, R., Goh, Y. M., Golob, B., Haba, J., Hara, T., Hayasaka, K., Hayashii, H., He, X. H., Hou, W. -S., Huschle, M., Iijima, T., Inami, K., Ishikawa, A., Itoh, R., Jaegle, I., Joffe, D., Joo, K. K., Julius, T., Kawasaki, T., Kim, D. Y., Kim, H. J., Kim, J. B., Kim, J. H., Kim, K. T., Kinoshita, K., Ko, B. R., Kodyš, P., Korpar, S., Križan, P., Krokovny, P., Kuzmin, A., Kwon, Y. -J., Lange, J. S., Li, J., Li, Y., Li Gioi, L., Libby, J., Liventsev, D., Lukin, P., Miyabayashi, K., Miyata, H., Moll, A., Mussa, R., Nakano, E., Nakao, M., Nanut, T., Nisar, N. K., Nishida, S., Okuno, S., Ostrowicz, W., Park, C. W., Park, H., Pedlar, T. K., Pestotnik, R., Petrič, M., Piilonen, L. E., Ribežl, E., Ritter, M., Rostomyan, A., Sakai, Y., Sandilya, S., Santelj, L., Sanuki, T., Schneider, O., Schnell, G., Schwanda, C., Semmler, D., Senyo, K., Shebalin, V., Shibata, T. -A., Shiu, J. -G., Shwartz, B., Sibidanov, A., Simon, F., Sohn, Y. -S., Sokolov, A., Starič, M., Steder, M., Sumiyoshi, T., Tamponi, U., Tanida, K., Tatishvili, G., Teramoto, Y., Uchida, M., Uehara, S., Uglov, T., Unno, Y., Uno, S., Urquijo, P., Usov, Y., Vahsen, S. E., Van Hulse, C., Vanhoefer, P., Varner, G., Vinokurova, A., Vorobyev, V., Vossen, A., Wagner, M. N., Wang, C. H., Wang, M. -Z., Wang, P., Wang, X. L., Watanabe, M., Watanabe, Y., Won, E., Yamaoka, J., Yashchenko, S., Yook, Y., Yuan, C. Z., Zhang, Z. P., Zhilich, V., and Zhulanov, V. Evidence of Υ(1S)→J/ψ+χc1 and search for double-charmonium production in Υ(1S) and Υ(2S) decays. United States: N. p., 2014. Web. doi:10.1103/PhysRevD.90.112008.
Yang, S. D., Shen, C. P., Ban, Y., Abdesselam, A., Adachi, I., Aihara, H., Al Said, S., Arinstein, K., Asner, D. M., Aulchenko, V., Aushev, T., Ayad, R., Bakich, A. M., Bansal, V., Behera, P., Bhuyan, B., Bobrov, A., Bozek, A., Bračko, M., Browder, T. E., Červenkov, D., Chekelian, V., Chen, A., Cheon, B. G., Chilikin, K., Chistov, R., Cho, K., Chobanova, V., Choi, S. -K., Choi, Y., Cinabro, D., Dalseno, J., Danilov, M., Dingfelder, J., Doležal, Z., Drásal, Z., Drutskoy, A., Dutta, K., Eidelman, S., Farhat, H., Fast, J. E., Ferber, T., Gaur, V., Gabyshev, N., Ganguly, S., Garmash, A., Gillard, R., Goh, Y. M., Golob, B., Haba, J., Hara, T., Hayasaka, K., Hayashii, H., He, X. H., Hou, W. -S., Huschle, M., Iijima, T., Inami, K., Ishikawa, A., Itoh, R., Jaegle, I., Joffe, D., Joo, K. K., Julius, T., Kawasaki, T., Kim, D. Y., Kim, H. J., Kim, J. B., Kim, J. H., Kim, K. T., Kinoshita, K., Ko, B. R., Kodyš, P., Korpar, S., Križan, P., Krokovny, P., Kuzmin, A., Kwon, Y. -J., Lange, J. S., Li, J., Li, Y., Li Gioi, L., Libby, J., Liventsev, D., Lukin, P., Miyabayashi, K., Miyata, H., Moll, A., Mussa, R., Nakano, E., Nakao, M., Nanut, T., Nisar, N. K., Nishida, S., Okuno, S., Ostrowicz, W., Park, C. W., Park, H., Pedlar, T. K., Pestotnik, R., Petrič, M., Piilonen, L. E., Ribežl, E., Ritter, M., Rostomyan, A., Sakai, Y., Sandilya, S., Santelj, L., Sanuki, T., Schneider, O., Schnell, G., Schwanda, C., Semmler, D., Senyo, K., Shebalin, V., Shibata, T. -A., Shiu, J. -G., Shwartz, B., Sibidanov, A., Simon, F., Sohn, Y. -S., Sokolov, A., Starič, M., Steder, M., Sumiyoshi, T., Tamponi, U., Tanida, K., Tatishvili, G., Teramoto, Y., Uchida, M., Uehara, S., Uglov, T., Unno, Y., Uno, S., Urquijo, P., Usov, Y., Vahsen, S. E., Van Hulse, C., Vanhoefer, P., Varner, G., Vinokurova, A., Vorobyev, V., Vossen, A., Wagner, M. N., Wang, C. H., Wang, M. -Z., Wang, P., Wang, X. L., Watanabe, M., Watanabe, Y., Won, E., Yamaoka, J., Yashchenko, S., Yook, Y., Yuan, C. Z., Zhang, Z. P., Zhilich, V., & Zhulanov, V. Evidence of Υ(1S)→J/ψ+χc1 and search for double-charmonium production in Υ(1S) and Υ(2S) decays. United States. doi:10.1103/PhysRevD.90.112008.
Yang, S. D., Shen, C. P., Ban, Y., Abdesselam, A., Adachi, I., Aihara, H., Al Said, S., Arinstein, K., Asner, D. M., Aulchenko, V., Aushev, T., Ayad, R., Bakich, A. M., Bansal, V., Behera, P., Bhuyan, B., Bobrov, A., Bozek, A., Bračko, M., Browder, T. E., Červenkov, D., Chekelian, V., Chen, A., Cheon, B. G., Chilikin, K., Chistov, R., Cho, K., Chobanova, V., Choi, S. -K., Choi, Y., Cinabro, D., Dalseno, J., Danilov, M., Dingfelder, J., Doležal, Z., Drásal, Z., Drutskoy, A., Dutta, K., Eidelman, S., Farhat, H., Fast, J. E., Ferber, T., Gaur, V., Gabyshev, N., Ganguly, S., Garmash, A., Gillard, R., Goh, Y. M., Golob, B., Haba, J., Hara, T., Hayasaka, K., Hayashii, H., He, X. H., Hou, W. -S., Huschle, M., Iijima, T., Inami, K., Ishikawa, A., Itoh, R., Jaegle, I., Joffe, D., Joo, K. K., Julius, T., Kawasaki, T., Kim, D. Y., Kim, H. J., Kim, J. B., Kim, J. H., Kim, K. T., Kinoshita, K., Ko, B. R., Kodyš, P., Korpar, S., Križan, P., Krokovny, P., Kuzmin, A., Kwon, Y. -J., Lange, J. S., Li, J., Li, Y., Li Gioi, L., Libby, J., Liventsev, D., Lukin, P., Miyabayashi, K., Miyata, H., Moll, A., Mussa, R., Nakano, E., Nakao, M., Nanut, T., Nisar, N. K., Nishida, S., Okuno, S., Ostrowicz, W., Park, C. W., Park, H., Pedlar, T. K., Pestotnik, R., Petrič, M., Piilonen, L. E., Ribežl, E., Ritter, M., Rostomyan, A., Sakai, Y., Sandilya, S., Santelj, L., Sanuki, T., Schneider, O., Schnell, G., Schwanda, C., Semmler, D., Senyo, K., Shebalin, V., Shibata, T. -A., Shiu, J. -G., Shwartz, B., Sibidanov, A., Simon, F., Sohn, Y. -S., Sokolov, A., Starič, M., Steder, M., Sumiyoshi, T., Tamponi, U., Tanida, K., Tatishvili, G., Teramoto, Y., Uchida, M., Uehara, S., Uglov, T., Unno, Y., Uno, S., Urquijo, P., Usov, Y., Vahsen, S. E., Van Hulse, C., Vanhoefer, P., Varner, G., Vinokurova, A., Vorobyev, V., Vossen, A., Wagner, M. N., Wang, C. H., Wang, M. -Z., Wang, P., Wang, X. L., Watanabe, M., Watanabe, Y., Won, E., Yamaoka, J., Yashchenko, S., Yook, Y., Yuan, C. Z., Zhang, Z. P., Zhilich, V., and Zhulanov, V. Tue . "Evidence of Υ(1S)→J/ψ+χc1 and search for double-charmonium production in Υ(1S) and Υ(2S) decays". United States. doi:10.1103/PhysRevD.90.112008. https://www.osti.gov/servlets/purl/1594452.
@article{osti_1594452,
title = {Evidence of Υ(1S)→J/ψ+χc1 and search for double-charmonium production in Υ(1S) and Υ(2S) decays},
author = {Yang, S. D. and Shen, C. P. and Ban, Y. and Abdesselam, A. and Adachi, I. and Aihara, H. and Al Said, S. and Arinstein, K. and Asner, D. M. and Aulchenko, V. and Aushev, T. and Ayad, R. and Bakich, A. M. and Bansal, V. and Behera, P. and Bhuyan, B. and Bobrov, A. and Bozek, A. and Bračko, M. and Browder, T. E. and Červenkov, D. and Chekelian, V. and Chen, A. and Cheon, B. G. and Chilikin, K. and Chistov, R. and Cho, K. and Chobanova, V. and Choi, S. -K. and Choi, Y. and Cinabro, D. and Dalseno, J. and Danilov, M. and Dingfelder, J. and Doležal, Z. and Drásal, Z. and Drutskoy, A. and Dutta, K. and Eidelman, S. and Farhat, H. and Fast, J. E. and Ferber, T. and Gaur, V. and Gabyshev, N. and Ganguly, S. and Garmash, A. and Gillard, R. and Goh, Y. M. and Golob, B. and Haba, J. and Hara, T. and Hayasaka, K. and Hayashii, H. and He, X. H. and Hou, W. -S. and Huschle, M. and Iijima, T. and Inami, K. and Ishikawa, A. and Itoh, R. and Jaegle, I. and Joffe, D. and Joo, K. K. and Julius, T. and Kawasaki, T. and Kim, D. Y. and Kim, H. J. and Kim, J. B. and Kim, J. H. and Kim, K. T. and Kinoshita, K. and Ko, B. R. and Kodyš, P. and Korpar, S. and Križan, P. and Krokovny, P. and Kuzmin, A. and Kwon, Y. -J. and Lange, J. S. and Li, J. and Li, Y. and Li Gioi, L. and Libby, J. and Liventsev, D. and Lukin, P. and Miyabayashi, K. and Miyata, H. and Moll, A. and Mussa, R. and Nakano, E. and Nakao, M. and Nanut, T. and Nisar, N. K. and Nishida, S. and Okuno, S. and Ostrowicz, W. and Park, C. W. and Park, H. and Pedlar, T. K. and Pestotnik, R. and Petrič, M. and Piilonen, L. E. and Ribežl, E. and Ritter, M. and Rostomyan, A. and Sakai, Y. and Sandilya, S. and Santelj, L. and Sanuki, T. and Schneider, O. and Schnell, G. and Schwanda, C. and Semmler, D. and Senyo, K. and Shebalin, V. and Shibata, T. -A. and Shiu, J. -G. and Shwartz, B. and Sibidanov, A. and Simon, F. and Sohn, Y. -S. and Sokolov, A. and Starič, M. and Steder, M. and Sumiyoshi, T. and Tamponi, U. and Tanida, K. and Tatishvili, G. and Teramoto, Y. and Uchida, M. and Uehara, S. and Uglov, T. and Unno, Y. and Uno, S. and Urquijo, P. and Usov, Y. and Vahsen, S. E. and Van Hulse, C. and Vanhoefer, P. and Varner, G. and Vinokurova, A. and Vorobyev, V. and Vossen, A. and Wagner, M. N. and Wang, C. H. and Wang, M. -Z. and Wang, P. and Wang, X. L. and Watanabe, M. and Watanabe, Y. and Won, E. and Yamaoka, J. and Yashchenko, S. and Yook, Y. and Yuan, C. Z. and Zhang, Z. P. and Zhilich, V. and Zhulanov, V.},
abstractNote = {Using data samples of 102×106 Υ(1S) and 158×106 Υ(2S) events collected with the Belle detector, a first experimental search has been made for double-charmonium production in the exclusive decays Υ(1S,2S)→J/ψ(ψ')+X, where X=ηc, χcJ(J=0,1,2), ηc(2S), X(3940), and X(4160). No significant signal is observed in the spectra of the mass recoiling against the reconstructed J/ψ or ψ' except for the evidence of χc1 production with a significance of 4.6σ for Υ(1S)→J/ψ+χc1. The measured branching fraction B(Υ(1S)→J/ψ+χc1) is [3.90±1.21(stat)±0.23(syst)]×10-6. The 90% C.L. upper limits on the branching fractions of the other modes having a significance of less than 3σ are determined. In conclusion, these results are consistent with theoretical calculations using the nonrelativistic QCD factorization approach.},
doi = {10.1103/PhysRevD.90.112008},
journal = {Physical Review. D, Particles, Fields, Gravitation and Cosmology},
number = 11,
volume = 90,
place = {United States},
year = {2014},
month = {12}
}

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The Belle detector
journal, February 2002

  • Abashian, A.; Gotow, K.; Morgan, N.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 479, Issue 1
  • DOI: 10.1016/S0168-9002(01)02013-7

Electron identification in Belle
journal, June 2002

  • Hanagaki, K.; Kakuno, H.; Ikeda, H.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 485, Issue 3
  • DOI: 10.1016/S0168-9002(01)02113-1