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 | |
Publication status | Published - 2014 Dec 16 |
ASJC Scopus subject areas
- Nuclear and High Energy Physics
- Physics and Astronomy (miscellaneous)
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Evidence of (1S) →j /ψ+χc1 and search for double-charmonium production in (1S) and (2S) decays. / 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.
In: Physical Review D - Particles, Fields, Gravitation and Cosmology, Vol. 90, No. 11, 112008, 16.12.2014.Research output: Contribution to journal › Article › peer-review
}
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.
N1 - Publisher Copyright: © 2014 American Physical Society. Copyright: Copyright 2014 Elsevier B.V., All rights reserved.
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
UR - http://www.scopus.com/inward/citedby.url?scp=84919459145&partnerID=8YFLogxK
U2 - 10.1103/PhysRevD.90.112008
DO - 10.1103/PhysRevD.90.112008
M3 - Article
AN - SCOPUS:84919459145
VL - 90
JO - Physical Review D - Particles, Fields, Gravitation and Cosmology
JF - Physical Review D - Particles, Fields, Gravitation and Cosmology
SN - 1550-7998
IS - 11
M1 - 112008
ER -