Evidence of (1S) →j /ψ+χc1 and search for double-charmonium production in (1S) and (2S) decays

S. D. Yang; C. P. Shen; Y. Ban; A. Abdesselam; I. Adachi; H. Aihara; S. Al Said; K. Arinstein; D. M. Asner; V. Aulchenko; T. Aushev; R. Ayad; A. M. Bakich; V. Bansal; P. Behera; B. Bhuyan; A. Bobrov; A. Bozek; M. Bračko; T. E. Browder; D. Červenkov; V. Chekelian; A. Chen; B. G. Cheon; K. Chilikin; R. Chistov; K. Cho; V. Chobanova; S. K. Choi; Y. Choi; D. Cinabro; J. Dalseno; M. Danilov; J. Dingfelder; Z. DoleŽal; Z. Drásal; A. Drutskoy; K. Dutta; S. Eidelman; H. Farhat; J. E. Fast; T. Ferber; V. Gaur; N. Gabyshev; S. Ganguly; A. Garmash; R. Gillard; Y. M. Goh; B. Golob; J. Haba; T. Hara; K. Hayasaka; H. Hayashii; X. H. He; W. S. Hou; M. Huschle; T. Iijima; K. Inami; A. Ishikawa; R. Itoh; I. Jaegle; D. Joffe; K. K. Joo; T. Julius; T. Kawasaki; D. Y. Kim; H. J. Kim; J. B. Kim; J. H. Kim; K. T. Kim; K. Kinoshita; B. R. Ko; P. Kodyš; S. Korpar; P. KriŽan; P. Krokovny; A. Kuzmin; Y. J. Kwon; J. S. Lange; J. Li; Y. Li; L. Li Gioi; J. Libby; D. Liventsev; P. Lukin; K. Miyabayashi; H. Miyata; A. Moll; R. Mussa; E. Nakano; M. Nakao; T. Nanut; N. K. Nisar; S. Nishida; S. Okuno; W. Ostrowicz; C. W. Park; H. Park; T. K. Pedlar; R. Pestotnik; M. Petrič; L. E. Piilonen; E. RibeŽl; M. Ritter; A. Rostomyan; Y. Sakai; S. Sandilya; L. Santelj; T. Sanuki; O. Schneider; G. Schnell; C. Schwanda; D. Semmler; K. Senyo; V. Shebalin; T. A. Shibata; J. G. Shiu; B. Shwartz; A. Sibidanov; F. Simon; Y. S. Sohn; A. Sokolov; M. Starič; M. Steder; T. Sumiyoshi; U. Tamponi; K. Tanida; G. Tatishvili; Y. Teramoto; M. Uchida; S. Uehara; T. Uglov; Y. Unno; S. Uno; P. Urquijo; Y. Usov; S. E. Vahsen; C. Van Hulse; P. Vanhoefer; G. Varner; A. Vinokurova; V. Vorobyev; A. Vossen; M. N. Wagner; C. H. Wang; M. Z. Wang; P. Wang; X. L. Wang; M. Watanabe; Y. Watanabe; E. Won; J. Yamaoka; S. Yashchenko; Y. Yook; C. Z. Yuan; Z. P. Zhang; V. Zhilich; V. Zhulanov

doi:10.1103/PhysRevD.90.112008

Evidence of (1S) →j /ψ+χc1 and search for double-charmonium production in (1S) and (2S) decays

S. D. Yang, C. P. Shen, Y. Ban, A. Abdesselam, I. Adachi, H. Aihara, S. Al Said, K. Arinstein, D. M. Asner, V. Aulchenko, T. Aushev, R. Ayad, A. M. Bakich, V. Bansal, P. Behera, B. Bhuyan, A. Bobrov, A. Bozek, M. Bračko, T. E. BrowderD. Červenkov, V. Chekelian, A. Chen, B. G. Cheon, K. Chilikin, R. Chistov, K. Cho, V. Chobanova, S. K. Choi, Y. Choi, D. Cinabro, J. Dalseno, M. Danilov, J. Dingfelder, Z. DoleŽal, Z. Drásal, A. Drutskoy, K. Dutta, S. Eidelman, H. Farhat, J. E. Fast, T. Ferber, V. Gaur, N. Gabyshev, S. Ganguly, A. Garmash, R. Gillard, Y. M. Goh, B. Golob, J. Haba, T. Hara, K. Hayasaka, H. Hayashii, X. H. He, W. S. Hou, M. Huschle, T. Iijima, K. Inami, A. Ishikawa, R. Itoh, I. Jaegle, D. Joffe, K. K. Joo, T. Julius, T. Kawasaki, D. Y. Kim, H. J. Kim, J. B. Kim, J. H. Kim, K. T. Kim, K. Kinoshita, B. R. Ko, P. Kodyš, S. Korpar, P. KriŽan, P. Krokovny, A. Kuzmin, Y. J. Kwon, J. S. Lange, J. Li, Y. Li, L. Li Gioi, J. Libby, D. Liventsev, P. Lukin, K. Miyabayashi, H. Miyata, A. Moll, R. Mussa, E. Nakano, M. Nakao, T. Nanut, N. K. Nisar, S. Nishida, S. Okuno, W. Ostrowicz, C. W. Park, H. Park, T. K. Pedlar, R. Pestotnik, M. Petrič, L. E. Piilonen, E. RibeŽl, M. Ritter, A. Rostomyan, Y. Sakai, S. Sandilya, L. Santelj, T. Sanuki, O. Schneider, G. Schnell, C. Schwanda, D. Semmler, K. Senyo, V. Shebalin, T. A. Shibata, J. G. Shiu, B. Shwartz, A. Sibidanov, F. Simon, Y. S. Sohn, A. Sokolov, M. Starič, M. Steder, T. Sumiyoshi, U. Tamponi, K. Tanida, G. Tatishvili, Y. Teramoto, M. Uchida, S. Uehara, T. Uglov, Y. Unno, S. Uno, P. Urquijo, Y. Usov, S. E. Vahsen, C. Van Hulse, P. Vanhoefer, G. Varner, A. Vinokurova, V. Vorobyev, A. Vossen, M. N. Wagner, C. H. Wang, M. Z. Wang, P. Wang, X. L. Wang, M. Watanabe, Y. Watanabe, E. Won, J. Yamaoka, S. Yashchenko, Y. Yook, C. Z. Yuan, Z. P. Zhang, V. Zhilich, V. Zhulanov

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Abstract

Using data samples of 102×106 (1S) and 158×106 (2S) events collected with the Belle detector, a first experimental search has been made for double-charmonium production in the exclusive decays (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 (1S)→J/ψ+χc1. The measured branching fraction B((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. These results are consistent with theoretical calculations using the nonrelativistic QCD factorization approach.

Original language	English
Article number	112008
Journal	Physical Review D - Particles, Fields, Gravitation and Cosmology
Volume	90
Issue number	11
DOIs	https://doi.org/10.1103/PhysRevD.90.112008
State	Published - 16 Dec 2014

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10.1103/PhysRevD.90.112008

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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., ... Zhulanov, V. (2014). Evidence of (1S) →j /ψ+χc1 and search for double-charmonium production in (1S) and (2S) decays. Physical Review D - Particles, Fields, Gravitation and Cosmology, 90(11), Article 112008. https://doi.org/10.1103/PhysRevD.90.112008

@article{20ea1bfd9bb04291a1999927bd3188ce,

title = "Evidence of (1S) →j /ψ+χc1 and search for double-charmonium production in (1S) and (2S) decays",

abstract = "Using data samples of 102×106 (1S) and 158×106 (2S) events collected with the Belle detector, a first experimental search has been made for double-charmonium production in the exclusive decays (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 (1S)→J/ψ+χc1. The measured branching fraction B((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. These results are consistent with theoretical calculations using the nonrelativistic QCD factorization approach.",

author = "Yang, {S. D.} and Shen, {C. P.} and Y. Ban and A. Abdesselam and I. Adachi and H. Aihara and {Al Said}, S. and K. Arinstein and Asner, {D. M.} and V. Aulchenko and T. Aushev and R. Ayad and Bakich, {A. M.} and V. Bansal and P. Behera and B. Bhuyan and A. Bobrov and A. Bozek and M. Bra{\v c}ko and Browder, {T. E.} and D. {\v C}ervenkov and V. Chekelian and A. Chen and Cheon, {B. G.} and K. Chilikin and R. Chistov and K. Cho and V. Chobanova and Choi, {S. K.} and Y. Choi and D. Cinabro and J. Dalseno and M. Danilov and J. Dingfelder and Z. Dole{\v Z}al and Z. Dr{\'a}sal and A. Drutskoy and K. Dutta and S. Eidelman and H. Farhat and Fast, {J. E.} and T. Ferber and V. Gaur and N. Gabyshev and S. Ganguly and A. Garmash and R. Gillard and Goh, {Y. M.} and B. Golob and J. Haba and T. Hara and K. Hayasaka and H. Hayashii and He, {X. H.} and Hou, {W. S.} and M. Huschle and T. Iijima and K. Inami and A. Ishikawa and R. Itoh and I. Jaegle and D. Joffe and Joo, {K. K.} and T. Julius and T. Kawasaki and Kim, {D. Y.} and Kim, {H. J.} and Kim, {J. B.} and Kim, {J. H.} and Kim, {K. T.} and K. Kinoshita and Ko, {B. R.} and P. Kody{\v s} and S. Korpar and P. Kri{\v Z}an and P. Krokovny and A. Kuzmin and Kwon, {Y. J.} and Lange, {J. S.} and J. Li and Y. Li and {Li Gioi}, L. and J. Libby and D. Liventsev and P. Lukin and K. Miyabayashi and H. Miyata and A. Moll and R. Mussa and E. Nakano and M. Nakao and T. Nanut and Nisar, {N. K.} and S. Nishida and S. Okuno and W. Ostrowicz and Park, {C. W.} and H. Park and Pedlar, {T. K.} and R. Pestotnik and M. Petri{\v c} and Piilonen, {L. E.} and E. Ribe{\v Z}l and M. Ritter and A. Rostomyan and Y. Sakai and S. Sandilya and L. Santelj and T. Sanuki and O. Schneider and G. Schnell and C. Schwanda and D. Semmler and K. Senyo and V. Shebalin and Shibata, {T. A.} and Shiu, {J. G.} and B. Shwartz and A. Sibidanov and F. Simon and Sohn, {Y. S.} and A. Sokolov and M. Stari{\v c} and M. Steder and T. Sumiyoshi and U. Tamponi and K. Tanida and G. Tatishvili and Y. Teramoto and M. Uchida and S. Uehara and T. Uglov and Y. Unno and S. Uno and P. Urquijo and Y. Usov and Vahsen, {S. E.} and {Van Hulse}, C. and P. Vanhoefer and G. Varner and A. Vinokurova and V. Vorobyev and A. Vossen and Wagner, {M. N.} and Wang, {C. H.} and Wang, {M. Z.} and P. Wang and Wang, {X. L.} and M. Watanabe and Y. Watanabe and E. Won and J. Yamaoka and S. Yashchenko and Y. Yook and Yuan, {C. Z.} and Zhang, {Z. P.} and V. Zhilich and V. Zhulanov",

note = "Publisher Copyright: {\textcopyright} 2014 American Physical Society.",

year = "2014",

month = dec,

day = "16",

doi = "10.1103/PhysRevD.90.112008",

language = "English",

volume = "90",

journal = "Physical Review D - Particles, Fields, Gravitation and Cosmology",

issn = "1550-7998",

publisher = "American Physical Society",

number = "11",

}

Yang, SD, Shen, CP, Ban, Y, Abdesselam, A, Adachi, I, Aihara, H, Al Said, S, Arinstein, K, Asner, DM, Aulchenko, V, Aushev, T, Ayad, R, Bakich, AM, Bansal, V, Behera, P, Bhuyan, B, Bobrov, A, Bozek, A, Bračko, M, Browder, TE, Červenkov, D, Chekelian, V, Chen, A, Cheon, BG, Chilikin, K, Chistov, R, Cho, K, Chobanova, V, Choi, SK, Choi, Y, Cinabro, D, Dalseno, J, Danilov, M, Dingfelder, J, DoleŽal, Z, Drásal, Z, Drutskoy, A, Dutta, K, Eidelman, S, Farhat, H, Fast, JE, Ferber, T, Gaur, V, Gabyshev, N, Ganguly, S, Garmash, A, Gillard, R, Goh, YM, Golob, B, Haba, J, Hara, T, Hayasaka, K, Hayashii, H, He, XH, Hou, WS, Huschle, M, Iijima, T, Inami, K, Ishikawa, A, Itoh, R, Jaegle, I, Joffe, D, Joo, KK, Julius, T, Kawasaki, T, Kim, DY, Kim, HJ, Kim, JB, Kim, JH, Kim, KT, Kinoshita, K, Ko, BR, Kodyš, P, Korpar, S, KriŽan, P, Krokovny, P, Kuzmin, A, Kwon, YJ, Lange, JS, 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, NK, Nishida, S, Okuno, S, Ostrowicz, W, Park, CW, Park, H, Pedlar, TK, Pestotnik, R, Petrič, M, Piilonen, LE, 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, TA, Shiu, JG, Shwartz, B, Sibidanov, A, Simon, F, Sohn, YS, 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, SE, Van Hulse, C, Vanhoefer, P, Varner, G, Vinokurova, A, Vorobyev, V, Vossen, A, Wagner, MN, Wang, CH, Wang, MZ, Wang, P, Wang, XL, Watanabe, M, Watanabe, Y, Won, E, Yamaoka, J, Yashchenko, S, Yook, Y, Yuan, CZ, Zhang, ZP, Zhilich, V & Zhulanov, V 2014, 'Evidence of (1S) →j /ψ+χc1 and search for double-charmonium production in (1S) and (2S) decays', Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 90, no. 11, 112008. https://doi.org/10.1103/PhysRevD.90.112008

TY - JOUR

T1 - Evidence of (1S) →j /ψ+χc1 and search for double-charmonium production in (1S) and (2S) decays

AU - Yang, S. D.

AU - Shen, C. P.

AU - Ban, Y.

AU - Abdesselam, A.

AU - Adachi, I.

AU - Aihara, H.

AU - Al Said, S.

AU - Arinstein, K.

AU - Asner, D. M.

AU - Aulchenko, V.

AU - Aushev, T.

AU - Ayad, R.

AU - Bakich, A. M.

AU - Bansal, V.

AU - Behera, P.

AU - Bhuyan, B.

AU - Bobrov, A.

AU - Bozek, A.

AU - Bračko, M.

AU - Browder, T. E.

AU - Červenkov, D.

AU - Chekelian, V.

AU - Chen, A.

AU - Cheon, B. G.

AU - Chilikin, K.

AU - Chistov, R.

AU - Cho, K.

AU - Chobanova, V.

AU - Choi, S. K.

AU - Choi, Y.

AU - Cinabro, D.

AU - Dalseno, J.

AU - Danilov, M.

AU - Dingfelder, J.

AU - DoleŽal, Z.

AU - Drásal, Z.

AU - Drutskoy, A.

AU - Dutta, K.

AU - Eidelman, S.

AU - Farhat, H.

AU - Fast, J. E.

AU - Ferber, T.

AU - Gaur, V.

AU - Gabyshev, N.

AU - Ganguly, S.

AU - Garmash, A.

AU - Gillard, R.

AU - Goh, Y. M.

AU - Golob, B.

AU - Haba, J.

AU - Hara, T.

AU - Hayasaka, K.

AU - Hayashii, H.

AU - He, X. H.

AU - Hou, W. S.

AU - Huschle, M.

AU - Iijima, T.

AU - Inami, K.

AU - Ishikawa, A.

AU - Itoh, R.

AU - Jaegle, I.

AU - Joffe, D.

AU - Joo, K. K.

AU - Julius, T.

AU - Kawasaki, T.

AU - Kim, D. Y.

AU - Kim, H. J.

AU - Kim, J. B.

AU - Kim, J. H.

AU - Kim, K. T.

AU - Kinoshita, K.

AU - Ko, B. R.

AU - Kodyš, P.

AU - Korpar, S.

AU - KriŽan, P.

AU - Krokovny, P.

AU - Kuzmin, A.

AU - Kwon, Y. J.

AU - Lange, J. S.

AU - Li, J.

AU - Li, Y.

AU - Li Gioi, L.

AU - Libby, J.

AU - Liventsev, D.

AU - Lukin, P.

AU - Miyabayashi, K.

AU - Miyata, H.

AU - Moll, A.

AU - Mussa, R.

AU - Nakano, E.

AU - Nakao, M.

AU - Nanut, T.

AU - Nisar, N. K.

AU - Nishida, S.

AU - Okuno, S.

AU - Ostrowicz, W.

AU - Park, C. W.

AU - Park, H.

AU - Pedlar, T. K.

AU - Pestotnik, R.

AU - Petrič, M.

AU - Piilonen, L. E.

AU - RibeŽl, E.

AU - Ritter, M.

AU - Rostomyan, A.

AU - Sakai, Y.

AU - Sandilya, S.

AU - Santelj, L.

AU - Sanuki, T.

AU - Schneider, O.

AU - Schnell, G.

AU - Schwanda, C.

AU - Semmler, D.

AU - Senyo, K.

AU - Shebalin, V.

AU - Shibata, T. A.

AU - Shiu, J. G.

AU - Shwartz, B.

AU - Sibidanov, A.

AU - Simon, F.

AU - Sohn, Y. S.

AU - Sokolov, A.

AU - Starič, M.

AU - Steder, M.

AU - Sumiyoshi, T.

AU - Tamponi, U.

AU - Tanida, K.

AU - Tatishvili, G.

AU - Teramoto, Y.

AU - Uchida, M.

AU - Uehara, S.

AU - Uglov, T.

AU - Unno, Y.

AU - Uno, S.

AU - Urquijo, P.

AU - Usov, Y.

AU - Vahsen, S. E.

AU - Van Hulse, C.

AU - Vanhoefer, P.

AU - Varner, G.

AU - Vinokurova, A.

AU - Vorobyev, V.

AU - Vossen, A.

AU - Wagner, M. N.

AU - Wang, C. H.

AU - Wang, M. Z.

AU - Wang, P.

AU - Wang, X. L.

AU - Watanabe, M.

AU - Watanabe, Y.

AU - Won, E.

AU - Yamaoka, J.

AU - Yashchenko, S.

AU - Yook, Y.

AU - Yuan, C. Z.

AU - Zhang, Z. P.

AU - Zhilich, V.

AU - Zhulanov, V.

PY - 2014/12/16

Y1 - 2014/12/16

N2 - Using data samples of 102×106 (1S) and 158×106 (2S) events collected with the Belle detector, a first experimental search has been made for double-charmonium production in the exclusive decays (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 (1S)→J/ψ+χc1. The measured branching fraction B((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. These results are consistent with theoretical calculations using the nonrelativistic QCD factorization approach.

AB - Using data samples of 102×106 (1S) and 158×106 (2S) events collected with the Belle detector, a first experimental search has been made for double-charmonium production in the exclusive decays (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 (1S)→J/ψ+χc1. The measured branching fraction B((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. These results are consistent with theoretical calculations using the nonrelativistic QCD factorization approach.

UR - http://www.scopus.com/inward/record.url?scp=84919459145&partnerID=8YFLogxK

U2 - 10.1103/PhysRevD.90.112008

DO - 10.1103/PhysRevD.90.112008

M3 - Article

AN - SCOPUS:84919459145

SN - 1550-7998

VL - 90

JO - Physical Review D - Particles, Fields, Gravitation and Cosmology

JF - Physical Review D - Particles, Fields, Gravitation and Cosmology

IS - 11

M1 - 112008

ER -

Evidence of (1S) →j /ψ+χc1 and search for double-charmonium production in (1S) and (2S) decays

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