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Title: Measurement of e + e - π + π - ψ ( 2 S ) via initial state radiation at Belle

Abstract

We report here measurement of the cross section of e + e - π + π - ψ ( 2 S ) between 4.0 and 5.5 GeV, based on an analysis of initial state radiation events in a 980 fb - 1 data sample recorded with the Belle detector. The properties of the Y(4360) and Y(4660) states are determined. Fitting the mass spectrum of π + π - ψ ( 2 S ) with two coherent Breit-Wigner functions, we discover two solutions with identical mass and width but different couplings to electron-positron pairs: M Y ( 4360 ) = ( 4347 ± 6 ± 3 ) MeV / c 2 , Γ Y ( 4360 ) = ( 103 ± 9 ± 5 ) MeV , M Y ( 4660 ) = ( 4652 ± 10 ± 8 ) MeV / c 2 , Γ Y ( 4660 ) = ( 68 ± 11 ± 1 ) MeV ; and B [ Y ( 4360 ) π + π - ψ ( 2 S ) ] · Γ Y ( 4360 ) e + e - = ( 10.9 ± 0.6 ± 0.7 ) eV and B [ Y ( 4660 ) π + π - ψ ( 2 S ) ] · Γ Y ( 4660 ) e + e - = ( 8.1 ± 1.1 ± 0.5 ) eV for one solution; or B [ Y ( 4360 ) π + π - ψ ( 2 S ) ] · Γ Y ( 4360 ) e + e - = ( 9.2 ± 0.6 ± 0.6 ) eV and B [ Y ( 4660 ) π + π = ψ ( 2 S ) ] · Γ Y ( 4660 ) e + e - = ( 2.0 ± 0.3 ± 0.2 ) eV for the other. Here, the first errors are statistical and the second systematic. Evidence for a charged charmoniumlike structure at 4.05 GeV / c 2 is observed in the π±ψ(2S) intermediate state in the Y(4360) decays. decays.

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:
1594433
Grant/Contract Number:  
SC0009973
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review. D, Particles, Fields, Gravitation and Cosmology
Additional Journal Information:
Journal Volume: 91; 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

Wang, X. L., Yuan, C. Z., Shen, C. P., Wang, P., Abdesselam, A., Adachi, I., Aihara, H., Al Said, S., Arinstein, K., Asner, D. M., Ayad, R., Bakich, A. M., Bansal, V., Bhuyan, B., Bobrov, A., Bonvicini, G., Bračko, M., Browder, T. E., Červenkov, D., Chang, P., 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., Doležal, Z., Drásal, Z., Drutskoy, A., Dutta, K., Eidelman, S., Farhat, H., Fast, J. E., Ferber, T., Gaur, V., Garmash, A., Getzkow, D., Gillard, R., Goh, Y. M., Haba, J., Hayasaka, K., Hayashii, H., He, X. H., Hou, W. -S., Iijima, T., Inami, K., Ishikawa, A., Itoh, R., Iwasaki, Y., Joffe, D., Julius, T., Kang, K. H., Kato, E., Kawasaki, T., Kiesling, C., Kim, D. Y., Kim, H. J., Kim, J. B., Kim, J. H., Kim, M. J., Kim, S. H., Kim, Y. J., Kinoshita, K., Ko, B. R., Kodyš, P., Korpar, S., Križan, P., Krokovny, P., Kuzmin, A., Kwon, Y. -J., Lange, J. S., Lee, I. S., Lewis, P., Li, Y., Li Gioi, L., Libby, J., Liventsev, D., Lukin, P., Matvienko, D., Miyabayashi, K., Miyata, H., Mizuk, R., Moll, A., Mori, T., Mussa, R., Nakano, E., Nakao, M., Nanut, T., Natkaniec, Z., Nisar, N. K., Nishida, S., Ogawa, S., Okuno, S., Olsen, S. L., Pakhlov, P., Pakhlova, G., Park, C. W., Park, H., Pedlar, T. K., Pestotnik, R., Petrič, M., Piilonen, L. E., Ribežl, E., Ritter, M., Rostomyan, A., Ryu, S., Sakai, Y., Sandilya, S., Santelj, L., Sanuki, T., Savinov, V., Schneider, O., Schnell, G., Schwanda, C., Semmler, D., Senyo, K., Shebalin, V., Shibata, T. -A., Shiu, J. -G., Sibidanov, A., Simon, F., Sohn, Y. -S., Sokolov, A., Solovieva, E., Starič, M., Steder, M., Sumiyoshi, T., Tamponi, U., Tanida, K., Tatishvili, G., Teramoto, Y., Trabelsi, K., Uchida, M., Uglov, T., Unno, Y., Uno, S., Usov, Y., Van Hulse, C., Vanhoefer, P., Varner, G., Vinokurova, A., Wagner, M. N., Watanabe, Y., Won, E., Yashchenko, S., Yusa, Y., Zhang, Z. P., Zhilich, V., and Zupanc, A. Measurement of e+e-→π+π-ψ(2S) via initial state radiation at Belle. United States: N. p., 2015. Web. doi:10.1103/PhysRevD.91.112007.
Wang, X. L., Yuan, C. Z., Shen, C. P., Wang, P., Abdesselam, A., Adachi, I., Aihara, H., Al Said, S., Arinstein, K., Asner, D. M., Ayad, R., Bakich, A. M., Bansal, V., Bhuyan, B., Bobrov, A., Bonvicini, G., Bračko, M., Browder, T. E., Červenkov, D., Chang, P., 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., Doležal, Z., Drásal, Z., Drutskoy, A., Dutta, K., Eidelman, S., Farhat, H., Fast, J. E., Ferber, T., Gaur, V., Garmash, A., Getzkow, D., Gillard, R., Goh, Y. M., Haba, J., Hayasaka, K., Hayashii, H., He, X. H., Hou, W. -S., Iijima, T., Inami, K., Ishikawa, A., Itoh, R., Iwasaki, Y., Joffe, D., Julius, T., Kang, K. H., Kato, E., Kawasaki, T., Kiesling, C., Kim, D. Y., Kim, H. J., Kim, J. B., Kim, J. H., Kim, M. J., Kim, S. H., Kim, Y. J., Kinoshita, K., Ko, B. R., Kodyš, P., Korpar, S., Križan, P., Krokovny, P., Kuzmin, A., Kwon, Y. -J., Lange, J. S., Lee, I. S., Lewis, P., Li, Y., Li Gioi, L., Libby, J., Liventsev, D., Lukin, P., Matvienko, D., Miyabayashi, K., Miyata, H., Mizuk, R., Moll, A., Mori, T., Mussa, R., Nakano, E., Nakao, M., Nanut, T., Natkaniec, Z., Nisar, N. K., Nishida, S., Ogawa, S., Okuno, S., Olsen, S. L., Pakhlov, P., Pakhlova, G., Park, C. W., Park, H., Pedlar, T. K., Pestotnik, R., Petrič, M., Piilonen, L. E., Ribežl, E., Ritter, M., Rostomyan, A., Ryu, S., Sakai, Y., Sandilya, S., Santelj, L., Sanuki, T., Savinov, V., Schneider, O., Schnell, G., Schwanda, C., Semmler, D., Senyo, K., Shebalin, V., Shibata, T. -A., Shiu, J. -G., Sibidanov, A., Simon, F., Sohn, Y. -S., Sokolov, A., Solovieva, E., Starič, M., Steder, M., Sumiyoshi, T., Tamponi, U., Tanida, K., Tatishvili, G., Teramoto, Y., Trabelsi, K., Uchida, M., Uglov, T., Unno, Y., Uno, S., Usov, Y., Van Hulse, C., Vanhoefer, P., Varner, G., Vinokurova, A., Wagner, M. N., Watanabe, Y., Won, E., Yashchenko, S., Yusa, Y., Zhang, Z. P., Zhilich, V., & Zupanc, A. Measurement of e+e-→π+π-ψ(2S) via initial state radiation at Belle. United States. https://doi.org/10.1103/PhysRevD.91.112007
Wang, X. L., Yuan, C. Z., Shen, C. P., Wang, P., Abdesselam, A., Adachi, I., Aihara, H., Al Said, S., Arinstein, K., Asner, D. M., Ayad, R., Bakich, A. M., Bansal, V., Bhuyan, B., Bobrov, A., Bonvicini, G., Bračko, M., Browder, T. E., Červenkov, D., Chang, P., 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., Doležal, Z., Drásal, Z., Drutskoy, A., Dutta, K., Eidelman, S., Farhat, H., Fast, J. E., Ferber, T., Gaur, V., Garmash, A., Getzkow, D., Gillard, R., Goh, Y. M., Haba, J., Hayasaka, K., Hayashii, H., He, X. H., Hou, W. -S., Iijima, T., Inami, K., Ishikawa, A., Itoh, R., Iwasaki, Y., Joffe, D., Julius, T., Kang, K. H., Kato, E., Kawasaki, T., Kiesling, C., Kim, D. Y., Kim, H. J., Kim, J. B., Kim, J. H., Kim, M. J., Kim, S. H., Kim, Y. J., Kinoshita, K., Ko, B. R., Kodyš, P., Korpar, S., Križan, P., Krokovny, P., Kuzmin, A., Kwon, Y. -J., Lange, J. S., Lee, I. S., Lewis, P., Li, Y., Li Gioi, L., Libby, J., Liventsev, D., Lukin, P., Matvienko, D., Miyabayashi, K., Miyata, H., Mizuk, R., Moll, A., Mori, T., Mussa, R., Nakano, E., Nakao, M., Nanut, T., Natkaniec, Z., Nisar, N. K., Nishida, S., Ogawa, S., Okuno, S., Olsen, S. L., Pakhlov, P., Pakhlova, G., Park, C. W., Park, H., Pedlar, T. K., Pestotnik, R., Petrič, M., Piilonen, L. E., Ribežl, E., Ritter, M., Rostomyan, A., Ryu, S., Sakai, Y., Sandilya, S., Santelj, L., Sanuki, T., Savinov, V., Schneider, O., Schnell, G., Schwanda, C., Semmler, D., Senyo, K., Shebalin, V., Shibata, T. -A., Shiu, J. -G., Sibidanov, A., Simon, F., Sohn, Y. -S., Sokolov, A., Solovieva, E., Starič, M., Steder, M., Sumiyoshi, T., Tamponi, U., Tanida, K., Tatishvili, G., Teramoto, Y., Trabelsi, K., Uchida, M., Uglov, T., Unno, Y., Uno, S., Usov, Y., Van Hulse, C., Vanhoefer, P., Varner, G., Vinokurova, A., Wagner, M. N., Watanabe, Y., Won, E., Yashchenko, S., Yusa, Y., Zhang, Z. P., Zhilich, V., and Zupanc, A. Fri . "Measurement of e+e-→π+π-ψ(2S) via initial state radiation at Belle". United States. https://doi.org/10.1103/PhysRevD.91.112007. https://www.osti.gov/servlets/purl/1594433.
@article{osti_1594433,
title = {Measurement of e+e-→π+π-ψ(2S) via initial state radiation at Belle},
author = {Wang, X. L. and Yuan, C. Z. and Shen, C. P. and Wang, P. and Abdesselam, A. and Adachi, I. and Aihara, H. and Al Said, S. and Arinstein, K. and Asner, D. M. and Ayad, R. and Bakich, A. M. and Bansal, V. and Bhuyan, B. and Bobrov, A. and Bonvicini, G. and Bračko, M. and Browder, T. E. and Červenkov, D. and Chang, P. 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 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 Garmash, A. and Getzkow, D. and Gillard, R. and Goh, Y. M. and Haba, J. and Hayasaka, K. and Hayashii, H. and He, X. H. and Hou, W. -S. and Iijima, T. and Inami, K. and Ishikawa, A. and Itoh, R. and Iwasaki, Y. and Joffe, D. and Julius, T. and Kang, K. H. and Kato, E. and Kawasaki, T. and Kiesling, C. and Kim, D. Y. and Kim, H. J. and Kim, J. B. and Kim, J. H. and Kim, M. J. and Kim, S. H. and Kim, Y. J. 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 Lee, I. S. and Lewis, P. and Li, Y. and Li Gioi, L. and Libby, J. and Liventsev, D. and Lukin, P. and Matvienko, D. and Miyabayashi, K. and Miyata, H. and Mizuk, R. and Moll, A. and Mori, T. and Mussa, R. and Nakano, E. and Nakao, M. and Nanut, T. and Natkaniec, Z. and Nisar, N. K. and Nishida, S. and Ogawa, S. and Okuno, S. and Olsen, S. L. and Pakhlov, P. and Pakhlova, G. 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 Ryu, S. and Sakai, Y. and Sandilya, S. and Santelj, L. and Sanuki, T. and Savinov, V. 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 Sibidanov, A. and Simon, F. and Sohn, Y. -S. and Sokolov, A. and Solovieva, E. and Starič, M. and Steder, M. and Sumiyoshi, T. and Tamponi, U. and Tanida, K. and Tatishvili, G. and Teramoto, Y. and Trabelsi, K. and Uchida, M. and Uglov, T. and Unno, Y. and Uno, S. and Usov, Y. and Van Hulse, C. and Vanhoefer, P. and Varner, G. and Vinokurova, A. and Wagner, M. N. and Watanabe, Y. and Won, E. and Yashchenko, S. and Yusa, Y. and Zhang, Z. P. and Zhilich, V. and Zupanc, A.},
abstractNote = {We report here measurement of the cross section of e+e-→π+π-ψ(2S) between 4.0 and 5.5 GeV, based on an analysis of initial state radiation events in a 980fb-1 data sample recorded with the Belle detector. The properties of the Y(4360) and Y(4660) states are determined. Fitting the mass spectrum of π+π-ψ(2S) with two coherent Breit-Wigner functions, we discover two solutions with identical mass and width but different couplings to electron-positron pairs: MY(4360)=(4347±6±3)MeV/c2, ΓY(4360)=(103±9±5)MeV, MY(4660)=(4652±10±8)MeV/c2, ΓY(4660)=(68±11±1)MeV; and B[Y(4360)→π+π-ψ(2S)]·ΓY(4360)e+e-=(10.9±0.6±0.7)eV and B[Y(4660)→π+π-ψ(2S)]·ΓY(4660)e+e-=(8.1±1.1±0.5)eV for one solution; or B[Y(4360)→π+π-ψ(2S)]·ΓY(4360)e+e-=(9.2±0.6±0.6)eV and B[Y(4660)→π+π=ψ(2S)]·ΓY(4660)e+e-=(2.0±0.3±0.2)eV for the other. Here, the first errors are statistical and the second systematic. Evidence for a charged charmoniumlike structure at 4.05GeV/c2 is observed in the π±ψ(2S) intermediate state in the Y(4360) decays. decays.},
doi = {10.1103/PhysRevD.91.112007},
journal = {Physical Review. D, Particles, Fields, Gravitation and Cosmology},
number = 11,
volume = 91,
place = {United States},
year = {Fri Jun 12 00:00:00 EDT 2015},
month = {Fri Jun 12 00:00:00 EDT 2015}
}

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