Observation of a vector charmoniumlike state in e+e-→ Ds+ Ds1 (2536)-+ c. c.

S. Jia; C. P. Shen; C. Z. Yuan; X. L. Wang; I. Adachi; H. Aihara; D. M. Asner; H. Atmacan; V. Aulchenko; R. Ayad; V. Babu; I. Badhrees; A. M. Bakich; P. Behera; B. Bhuyan; T. Bilka; J. Biswal; A. Bobrov; G. Bonvicini; A. Bozek; M. Bračko; T. E. Browder; M. Campajola; L. Cao; D. Červenkov; P. Chang; A. Chen; B. G. Cheon; K. Chilikin; H. E. Cho; K. Cho; S. K. Choi; Y. Choi; D. Cinabro; S. Cunliffe; G. De Nardo; F. Di Capua; S. Di Carlo; Z. DoleŽal; T. V. Dong; S. Eidelman; D. Epifanov; J. E. Fast; T. Ferber; B. G. Fulsom; R. Garg; V. Gaur; N. Gabyshev; A. Garmash; A. Giri; P. Goldenzweig; B. Golob; K. Hayasaka; H. Hayashii; W. S. Hou; C. L. Hsu; T. Iijima; K. Inami; G. Inguglia; A. Ishikawa; R. Itoh; M. Iwasaki; Y. Iwasaki; W. W. Jacobs; Y. Jin; K. K. Joo; K. H. Kang; G. Karyan; H. Kichimi; B. H. Kim; C. H. Kim; D. Y. Kim; S. H. Kim; K. Kinoshita; P. Kodyš; S. Korpar; R. Kroeger; P. Krokovny; R. Kulasiri; A. Kuzmin; Y. J. Kwon; K. Lalwani; J. S. Lange; I. S. Lee; S. C. Lee; P. Lewis; C. H. Li; L. K. Li; Y. B. Li; L. Li Gioi; J. Libby; K. Lieret; D. Liventsev; C. MacQueen; M. Masuda; T. Matsuda; D. Matvienko; M. Merola; K. Miyabayashi; H. Miyata; R. Mizuk; R. Mussa; K. J. Nath; M. Nayak; M. Niiyama; N. K. Nisar; S. Nishida; K. Nishimura; S. Ogawa; H. Ono; Y. Onuki; P. Oskin; P. Pakhlov; G. Pakhlova; T. Pang; S. Pardi; H. Park; S. H. Park; S. Patra; S. Paul; T. K. Pedlar; R. Pestotnik; L. E. Piilonen; V. Popov; E. Prencipe; M. T. Prim; M. Röhrken; A. Rostomyan; N. Rout; G. Russo; D. Sahoo; Y. Sakai; S. Sandilya; L. Santelj; V. Savinov; O. Schneider; G. Schnell; C. Schwanda; Y. Seino; K. Senyo; M. E. Sevior; J. G. Shiu; B. Shwartz; A. Sokolov; E. Solovieva; S. Stanič; M. Starič; Z. S. Stottler; T. Sumiyoshi; W. Sutcliffe; M. Takizawa; K. Tanida; F. Tenchini; K. Trabelsi; M. Uchida; T. Uglov; Y. Unno; S. Uno; Y. Usov; R. Van Tonder; G. Varner; A. Vinokurova; V. Vorobyev; C. H. Wang; M. Z. Wang; M. Watanabe; E. Won; S. B. Yang; H. Ye; J. H. Yin; Z. P. Zhang; V. Zhilich; V. Zhukova; V. Zhulanov

doi:10.1103/PhysRevD.100.111103

Observation of a vector charmoniumlike state in e+e-→ Ds+ Ds1 (2536)-+ c. c.

S. Jia, C. P. Shen, C. Z. Yuan, X. L. Wang, I. Adachi, H. Aihara, D. M. Asner, H. Atmacan, V. Aulchenko, R. Ayad, V. Babu, I. Badhrees, A. M. Bakich, P. Behera, B. Bhuyan, T. Bilka, J. Biswal, A. Bobrov, G. Bonvicini, A. BozekM. Bračko, T. E. Browder, M. Campajola, L. Cao, D. Červenkov, P. Chang, A. Chen, B. G. Cheon, K. Chilikin, H. E. Cho, K. Cho, S. K. Choi, Y. Choi, D. Cinabro, S. Cunliffe, G. De Nardo, F. Di Capua, S. Di Carlo, Z. DoleŽal, T. V. Dong, S. Eidelman, D. Epifanov, J. E. Fast, T. Ferber, B. G. Fulsom, R. Garg, V. Gaur, N. Gabyshev, A. Garmash, A. Giri, P. Goldenzweig, B. Golob, K. Hayasaka, H. Hayashii, W. S. Hou, C. L. Hsu, T. Iijima, K. Inami, G. Inguglia, A. Ishikawa, R. Itoh, M. Iwasaki, Y. Iwasaki, W. W. Jacobs, Y. Jin, K. K. Joo, K. H. Kang, G. Karyan, H. Kichimi, B. H. Kim, C. H. Kim, D. Y. Kim, S. H. Kim, K. Kinoshita, P. Kodyš, S. Korpar, R. Kroeger, P. Krokovny, R. Kulasiri, A. Kuzmin, Y. J. Kwon, K. Lalwani, J. S. Lange, I. S. Lee, S. C. Lee, P. Lewis, C. H. Li, L. K. Li, Y. B. Li, L. Li Gioi, J. Libby, K. Lieret, D. Liventsev, C. MacQueen, M. Masuda, T. Matsuda, D. Matvienko, M. Merola, K. Miyabayashi, H. Miyata, R. Mizuk, R. Mussa, K. J. Nath, M. Nayak, M. Niiyama, N. K. Nisar, S. Nishida, K. Nishimura, S. Ogawa, H. Ono, Y. Onuki, P. Oskin, P. Pakhlov, G. Pakhlova, T. Pang, S. Pardi, H. Park, S. H. Park, S. Patra, S. Paul, T. K. Pedlar, R. Pestotnik, L. E. Piilonen, V. Popov, E. Prencipe, M. T. Prim, M. Röhrken, A. Rostomyan, N. Rout, G. Russo, D. Sahoo, Y. Sakai, S. Sandilya, L. Santelj, V. Savinov, O. Schneider, G. Schnell, C. Schwanda, Y. Seino, K. Senyo, M. E. Sevior, J. G. Shiu, B. Shwartz, A. Sokolov, E. Solovieva, S. Stanič, M. Starič, Z. S. Stottler, T. Sumiyoshi, W. Sutcliffe, M. Takizawa, K. Tanida, F. Tenchini, K. Trabelsi, M. Uchida, T. Uglov, Y. Unno, S. Uno, Y. Usov, R. Van Tonder, G. Varner, A. Vinokurova, V. Vorobyev, C. H. Wang, M. Z. Wang, M. Watanabe, E. Won, S. B. Yang, H. Ye, J. H. Yin, Z. P. Zhang, V. Zhilich, V. Zhukova, V. Zhulanov

Department of Physics

Research output: Contribution to journal › Article › peer-review

24 Citations (Scopus)

Abstract

Using a data sample of 921.9 fb-1 collected with the Belle detector, we study the process of e+e-→Ds+Ds1(2536)-+c.c. via initial-state radiation. We report the first observation of a vector charmoniumlike state decaying to Ds+Ds1(2536)-+c.c. with a significance of 5.9σ, including systematic uncertainties. The measured mass and width are (4625.9-6.0+6.2(stat)±0.4(syst)) MeV/c2 and (49.8-11.5+13.9(stat)±4.0(syst)) MeV, respectively. The product of the e+e-→Ds+Ds1(2536)-+c.c. cross section and the branching fraction of Ds1(2536)-→D∗0K-is measured from the DsDs1(2536) threshold to 5.59 GeV.

Original language	English
Article number	111103
Journal	Physical Review D
Volume	100
Issue number	11
DOIs	https://doi.org/10.1103/PhysRevD.100.111103
Publication status	Published - 2019 Dec 31

ASJC Scopus subject areas

Nuclear and High Energy Physics

Access to Document

10.1103/PhysRevD.100.111103

Cite this

Jia, S., Shen, C. P., Yuan, C. Z., Wang, X. L., Adachi, I., Aihara, H., Asner, D. M., Atmacan, H., Aulchenko, V., Ayad, R., Babu, V., Badhrees, I., Bakich, A. M., Behera, P., Bhuyan, B., Bilka, T., Biswal, J., Bobrov, A., Bonvicini, G., ... Zhulanov, V. (2019). Observation of a vector charmoniumlike state in e+e-→ Ds+ Ds1 (2536)-+ c. c. Physical Review D, 100(11), [111103]. https://doi.org/10.1103/PhysRevD.100.111103

Jia, S, Shen, CP, Yuan, CZ, Wang, XL, Adachi, I, Aihara, H, Asner, DM, Atmacan, H, Aulchenko, V, Ayad, R, Babu, V, Badhrees, I, Bakich, AM, Behera, P, Bhuyan, B, Bilka, T, Biswal, J, Bobrov, A, Bonvicini, G, Bozek, A, Bračko, M, Browder, TE, Campajola, M, Cao, L, Červenkov, D, Chang, P, Chen, A, Cheon, BG, Chilikin, K, Cho, HE, Cho, K, Choi, SK, Choi, Y, Cinabro, D, Cunliffe, S, De Nardo, G, Di Capua, F, Di Carlo, S, DoleŽal, Z, Dong, TV, Eidelman, S, Epifanov, D, Fast, JE, Ferber, T, Fulsom, BG, Garg, R, Gaur, V, Gabyshev, N, Garmash, A, Giri, A, Goldenzweig, P, Golob, B, Hayasaka, K, Hayashii, H, Hou, WS, Hsu, CL, Iijima, T, Inami, K, Inguglia, G, Ishikawa, A, Itoh, R, Iwasaki, M, Iwasaki, Y, Jacobs, WW, Jin, Y, Joo, KK, Kang, KH, Karyan, G, Kichimi, H, Kim, BH, Kim, CH, Kim, DY, Kim, SH, Kinoshita, K, Kodyš, P, Korpar, S, Kroeger, R, Krokovny, P, Kulasiri, R, Kuzmin, A, Kwon, YJ, Lalwani, K, Lange, JS, Lee, IS, Lee, SC, Lewis, P, Li, CH, Li, LK, Li, YB, Li Gioi, L, Libby, J, Lieret, K, Liventsev, D, MacQueen, C, Masuda, M, Matsuda, T, Matvienko, D, Merola, M, Miyabayashi, K, Miyata, H, Mizuk, R, Mussa, R, Nath, KJ, Nayak, M, Niiyama, M, Nisar, NK, Nishida, S, Nishimura, K, Ogawa, S, Ono, H, Onuki, Y, Oskin, P, Pakhlov, P, Pakhlova, G, Pang, T, Pardi, S, Park, H, Park, SH, Patra, S, Paul, S, Pedlar, TK, Pestotnik, R, Piilonen, LE, Popov, V, Prencipe, E, Prim, MT, Röhrken, M, Rostomyan, A, Rout, N, Russo, G, Sahoo, D, Sakai, Y, Sandilya, S, Santelj, L, Savinov, V, Schneider, O, Schnell, G, Schwanda, C, Seino, Y, Senyo, K, Sevior, ME, Shiu, JG, Shwartz, B, Sokolov, A, Solovieva, E, Stanič, S, Starič, M, Stottler, ZS, Sumiyoshi, T, Sutcliffe, W, Takizawa, M, Tanida, K, Tenchini, F, Trabelsi, K, Uchida, M, Uglov, T, Unno, Y, Uno, S, Usov, Y, Van Tonder, R, Varner, G, Vinokurova, A, Vorobyev, V, Wang, CH, Wang, MZ, Watanabe, M, Won, E, Yang, SB, Ye, H, Yin, JH, Zhang, ZP, Zhilich, V, Zhukova, V & Zhulanov, V 2019, 'Observation of a vector charmoniumlike state in e+e-→ Ds+ Ds1 (2536)-+ c. c.', Physical Review D, vol. 100, no. 11, 111103. https://doi.org/10.1103/PhysRevD.100.111103

@article{8eae75e1c33a4e8d9bcf54a199e3a626,

title = "Observation of a vector charmoniumlike state in e+e-→ Ds+ Ds1 (2536)-+ c. c.",

abstract = "Using a data sample of 921.9 fb-1 collected with the Belle detector, we study the process of e+e-→Ds+Ds1(2536)-+c.c. via initial-state radiation. We report the first observation of a vector charmoniumlike state decaying to Ds+Ds1(2536)-+c.c. with a significance of 5.9σ, including systematic uncertainties. The measured mass and width are (4625.9-6.0+6.2(stat)±0.4(syst)) MeV/c2 and (49.8-11.5+13.9(stat)±4.0(syst)) MeV, respectively. The product of the e+e-→Ds+Ds1(2536)-+c.c. cross section and the branching fraction of Ds1(2536)-→D∗0K-is measured from the DsDs1(2536) threshold to 5.59 GeV.",

author = "S. Jia and Shen, {C. P.} and Yuan, {C. Z.} and Wang, {X. L.} and I. Adachi and H. Aihara and Asner, {D. M.} and H. Atmacan and V. Aulchenko and R. Ayad and V. Babu and I. Badhrees and Bakich, {A. M.} and P. Behera and B. Bhuyan and T. Bilka and J. Biswal and A. Bobrov and G. Bonvicini and A. Bozek and M. Bra{\v c}ko and Browder, {T. E.} and M. Campajola and L. Cao and D. {\v C}ervenkov and P. Chang and A. Chen and Cheon, {B. G.} and K. Chilikin and Cho, {H. E.} and K. Cho and Choi, {S. K.} and Y. Choi and D. Cinabro and S. Cunliffe and {De Nardo}, G. and {Di Capua}, F. and {Di Carlo}, S. and Z. Dole{\v Z}al and Dong, {T. V.} and S. Eidelman and D. Epifanov and Fast, {J. E.} and T. Ferber and Fulsom, {B. G.} and R. Garg and V. Gaur and N. Gabyshev and A. Garmash and A. Giri and P. Goldenzweig and B. Golob and K. Hayasaka and H. Hayashii and Hou, {W. S.} and Hsu, {C. L.} and T. Iijima and K. Inami and G. Inguglia and A. Ishikawa and R. Itoh and M. Iwasaki and Y. Iwasaki and Jacobs, {W. W.} and Y. Jin and Joo, {K. K.} and Kang, {K. H.} and G. Karyan and H. Kichimi and Kim, {B. H.} and Kim, {C. H.} and Kim, {D. Y.} and Kim, {S. H.} and K. Kinoshita and P. Kody{\v s} and S. Korpar and R. Kroeger and P. Krokovny and R. Kulasiri and A. Kuzmin and Kwon, {Y. J.} and K. Lalwani and Lange, {J. S.} and Lee, {I. S.} and Lee, {S. C.} and P. Lewis and Li, {C. H.} and Li, {L. K.} and Li, {Y. B.} and {Li Gioi}, L. and J. Libby and K. Lieret and D. Liventsev and C. MacQueen and M. Masuda and T. Matsuda and D. Matvienko and M. Merola and K. Miyabayashi and H. Miyata and R. Mizuk and R. Mussa and Nath, {K. J.} and M. Nayak and M. Niiyama and Nisar, {N. K.} and S. Nishida and K. Nishimura and S. Ogawa and H. Ono and Y. Onuki and P. Oskin and P. Pakhlov and G. Pakhlova and T. Pang and S. Pardi and H. Park and Park, {S. H.} and S. Patra and S. Paul and Pedlar, {T. K.} and R. Pestotnik and Piilonen, {L. E.} and V. Popov and E. Prencipe and Prim, {M. T.} and M. R{\"o}hrken and A. Rostomyan and N. Rout and G. Russo and D. Sahoo and Y. Sakai and S. Sandilya and L. Santelj and V. Savinov and O. Schneider and G. Schnell and C. Schwanda and Y. Seino and K. Senyo and Sevior, {M. E.} and Shiu, {J. G.} and B. Shwartz and A. Sokolov and E. Solovieva and S. Stani{\v c} and M. Stari{\v c} and Stottler, {Z. S.} and T. Sumiyoshi and W. Sutcliffe and M. Takizawa and K. Tanida and F. Tenchini and K. Trabelsi and M. Uchida and T. Uglov and Y. Unno and S. Uno and Y. Usov and {Van Tonder}, R. and G. Varner and A. Vinokurova and V. Vorobyev and Wang, {C. H.} and Wang, {M. Z.} and M. Watanabe and E. Won and Yang, {S. B.} and H. Ye and Yin, {J. H.} and Zhang, {Z. P.} and V. Zhilich and V. Zhukova and V. Zhulanov",

note = "Funding Information: We thank the KEKB group for the excellent operation of the accelerator; the KEK cryogenics group for the efficient operation of the solenoid; and the KEK computer group, and the Pacific Northwest National Laboratory (PNNL) Environmental Molecular Sciences Laboratory (EMSL) computing group for strong computing support; and the National Institute of Informatics, and Science Information NETwork 5 (SINET5) for valuable network support. We acknowledge support from the Ministry of Education, Culture, Sports, Science, and Technology (MEXT) of Japan, the Japan Society for the Promotion of Science (JSPS), and the Tau-Lepton Physics Research Center of Nagoya University; the Australian Research Council including Grants No. DP180102629, No. DP170102389, No. DP170102204, No. DP150103061, and No. FT130100303; Austrian Science Fund (FWF); the National Natural Science Foundation of China under Contracts No. 11435013, No. 11475187, No. 11521505, No. 11575017, No. 11675166, No. 11705209, No. 11761141009, No. 11975076; Key Research Program of Frontier Sciences, Chinese Academy of Sciences (CAS), Grant No. QYZDJ-SSW-SLH011; the CAS Center for Excellence in Particle Physics (CCEPP); the Shanghai Pujiang Program under Grant No. 18PJ1401000; the Ministry of Education, Youth and Sports of the Czech Republic under Contract No. LTT17020; the Carl Zeiss Foundation, the Deutsche Forschungsgemeinschaft, the Excellence Cluster Universe, and the VolkswagenStiftung; the Department of Science and Technology of India; the Istituto Nazionale di Fisica Nucleare of Italy; National Research Foundation (NRF) of Korea Grants No. 2016R1-D1A1B-01010135, No. 2016R1-D1A1B-02012900, No. 2018R1-A2B-3003643, No. 2018R1-A6A1A-06024970, No. 2018R1-D1A1B-07047294, No. 2019K1-A3A7A-09033840, and No. 2019R1-I1A3A-01058933; Radiation Science Research Institute, Foreign Large-size Research Facility Application Supporting project, the Global Science Experimental Data Hub Center of the Korea Institute of Science and Technology Information and KREONET/GLORIAD; the Polish Ministry of Science and Higher Education and the National Science Center; the Ministry of Science and Higher Education of the Russian Federation, Agreement 14.W03.31.0026; from 15.02.2018; the Slovenian Research Agency; Ikerbasque, Basque Foundation for Science, Spain; the Swiss National Science Foundation; the Ministry of Education and the Ministry of Science and Technology of Taiwan; and the United States Department of Energy and the National Science Foundation. Publisher Copyright: {\textcopyright} 2019 authors. Published by the American Physical Society.",

year = "2019",

month = dec,

day = "31",

doi = "10.1103/PhysRevD.100.111103",

language = "English",

volume = "100",

journal = "Physical Review D",

issn = "2470-0010",

publisher = "American Physical Society",

number = "11",

}

TY - JOUR

T1 - Observation of a vector charmoniumlike state in e+e-→ Ds+ Ds1 (2536)-+ c. c.

AU - Jia, S.

AU - Shen, C. P.

AU - Yuan, C. Z.

AU - Wang, X. L.

AU - Adachi, I.

AU - Aihara, H.

AU - Asner, D. M.

AU - Atmacan, H.

AU - Aulchenko, V.

AU - Ayad, R.

AU - Babu, V.

AU - Badhrees, I.

AU - Bakich, A. M.

AU - Behera, P.

AU - Bhuyan, B.

AU - Bilka, T.

AU - Biswal, J.

AU - Bobrov, A.

AU - Bonvicini, G.

AU - Bozek, A.

AU - Bračko, M.

AU - Browder, T. E.

AU - Campajola, M.

AU - Cao, L.

AU - Červenkov, D.

AU - Chang, P.

AU - Chen, A.

AU - Cheon, B. G.

AU - Chilikin, K.

AU - Cho, H. E.

AU - Cho, K.

AU - Choi, S. K.

AU - Choi, Y.

AU - Cinabro, D.

AU - Cunliffe, S.

AU - De Nardo, G.

AU - Di Capua, F.

AU - Di Carlo, S.

AU - DoleŽal, Z.

AU - Dong, T. V.

AU - Eidelman, S.

AU - Epifanov, D.

AU - Fast, J. E.

AU - Ferber, T.

AU - Fulsom, B. G.

AU - Garg, R.

AU - Gaur, V.

AU - Gabyshev, N.

AU - Garmash, A.

AU - Giri, A.

AU - Goldenzweig, P.

AU - Golob, B.

AU - Hayasaka, K.

AU - Hayashii, H.

AU - Hou, W. S.

AU - Hsu, C. L.

AU - Iijima, T.

AU - Inami, K.

AU - Inguglia, G.

AU - Ishikawa, A.

AU - Itoh, R.

AU - Iwasaki, M.

AU - Iwasaki, Y.

AU - Jacobs, W. W.

AU - Jin, Y.

AU - Joo, K. K.

AU - Kang, K. H.

AU - Karyan, G.

AU - Kichimi, H.

AU - Kim, B. H.

AU - Kim, C. H.

AU - Kim, D. Y.

AU - Kim, S. H.

AU - Kinoshita, K.

AU - Kodyš, P.

AU - Korpar, S.

AU - Kroeger, R.

AU - Krokovny, P.

AU - Kulasiri, R.

AU - Kuzmin, A.

AU - Kwon, Y. J.

AU - Lalwani, K.

AU - Lange, J. S.

AU - Lee, I. S.

AU - Lee, S. C.

AU - Lewis, P.

AU - Li, C. H.

AU - Li, L. K.

AU - Li, Y. B.

AU - Li Gioi, L.

AU - Libby, J.

AU - Lieret, K.

AU - Liventsev, D.

AU - MacQueen, C.

AU - Masuda, M.

AU - Matsuda, T.

AU - Matvienko, D.

AU - Merola, M.

AU - Miyabayashi, K.

AU - Miyata, H.

AU - Mizuk, R.

AU - Mussa, R.

AU - Nath, K. J.

AU - Nayak, M.

AU - Niiyama, M.

AU - Nisar, N. K.

AU - Nishida, S.

AU - Nishimura, K.

AU - Ogawa, S.

AU - Ono, H.

AU - Onuki, Y.

AU - Oskin, P.

AU - Pakhlov, P.

AU - Pakhlova, G.

AU - Pang, T.

AU - Pardi, S.

AU - Park, H.

AU - Park, S. H.

AU - Patra, S.

AU - Paul, S.

AU - Pedlar, T. K.

AU - Pestotnik, R.

AU - Piilonen, L. E.

AU - Popov, V.

AU - Prencipe, E.

AU - Prim, M. T.

AU - Röhrken, M.

AU - Rostomyan, A.

AU - Rout, N.

AU - Russo, G.

AU - Sahoo, D.

AU - Sakai, Y.

AU - Sandilya, S.

AU - Santelj, L.

AU - Savinov, V.

AU - Schneider, O.

AU - Schnell, G.

AU - Schwanda, C.

AU - Seino, Y.

AU - Senyo, K.

AU - Sevior, M. E.

AU - Shiu, J. G.

AU - Shwartz, B.

AU - Sokolov, A.

AU - Solovieva, E.

AU - Stanič, S.

AU - Starič, M.

AU - Stottler, Z. S.

AU - Sumiyoshi, T.

AU - Sutcliffe, W.

AU - Takizawa, M.

AU - Tanida, K.

AU - Tenchini, F.

AU - Trabelsi, K.

AU - Uchida, M.

AU - Uglov, T.

AU - Unno, Y.

AU - Uno, S.

AU - Usov, Y.

AU - Van Tonder, R.

AU - Varner, G.

AU - Vinokurova, A.

AU - Vorobyev, V.

AU - Wang, C. H.

AU - Wang, M. Z.

AU - Watanabe, M.

AU - Won, E.

AU - Yang, S. B.

AU - Ye, H.

AU - Yin, J. H.

AU - Zhang, Z. P.

AU - Zhilich, V.

AU - Zhukova, V.

AU - Zhulanov, V.

N1 - Funding Information: We thank the KEKB group for the excellent operation of the accelerator; the KEK cryogenics group for the efficient operation of the solenoid; and the KEK computer group, and the Pacific Northwest National Laboratory (PNNL) Environmental Molecular Sciences Laboratory (EMSL) computing group for strong computing support; and the National Institute of Informatics, and Science Information NETwork 5 (SINET5) for valuable network support. We acknowledge support from the Ministry of Education, Culture, Sports, Science, and Technology (MEXT) of Japan, the Japan Society for the Promotion of Science (JSPS), and the Tau-Lepton Physics Research Center of Nagoya University; the Australian Research Council including Grants No. DP180102629, No. DP170102389, No. DP170102204, No. DP150103061, and No. FT130100303; Austrian Science Fund (FWF); the National Natural Science Foundation of China under Contracts No. 11435013, No. 11475187, No. 11521505, No. 11575017, No. 11675166, No. 11705209, No. 11761141009, No. 11975076; Key Research Program of Frontier Sciences, Chinese Academy of Sciences (CAS), Grant No. QYZDJ-SSW-SLH011; the CAS Center for Excellence in Particle Physics (CCEPP); the Shanghai Pujiang Program under Grant No. 18PJ1401000; the Ministry of Education, Youth and Sports of the Czech Republic under Contract No. LTT17020; the Carl Zeiss Foundation, the Deutsche Forschungsgemeinschaft, the Excellence Cluster Universe, and the VolkswagenStiftung; the Department of Science and Technology of India; the Istituto Nazionale di Fisica Nucleare of Italy; National Research Foundation (NRF) of Korea Grants No. 2016R1-D1A1B-01010135, No. 2016R1-D1A1B-02012900, No. 2018R1-A2B-3003643, No. 2018R1-A6A1A-06024970, No. 2018R1-D1A1B-07047294, No. 2019K1-A3A7A-09033840, and No. 2019R1-I1A3A-01058933; Radiation Science Research Institute, Foreign Large-size Research Facility Application Supporting project, the Global Science Experimental Data Hub Center of the Korea Institute of Science and Technology Information and KREONET/GLORIAD; the Polish Ministry of Science and Higher Education and the National Science Center; the Ministry of Science and Higher Education of the Russian Federation, Agreement 14.W03.31.0026; from 15.02.2018; the Slovenian Research Agency; Ikerbasque, Basque Foundation for Science, Spain; the Swiss National Science Foundation; the Ministry of Education and the Ministry of Science and Technology of Taiwan; and the United States Department of Energy and the National Science Foundation. Publisher Copyright: © 2019 authors. Published by the American Physical Society.

PY - 2019/12/31

Y1 - 2019/12/31

N2 - Using a data sample of 921.9 fb-1 collected with the Belle detector, we study the process of e+e-→Ds+Ds1(2536)-+c.c. via initial-state radiation. We report the first observation of a vector charmoniumlike state decaying to Ds+Ds1(2536)-+c.c. with a significance of 5.9σ, including systematic uncertainties. The measured mass and width are (4625.9-6.0+6.2(stat)±0.4(syst)) MeV/c2 and (49.8-11.5+13.9(stat)±4.0(syst)) MeV, respectively. The product of the e+e-→Ds+Ds1(2536)-+c.c. cross section and the branching fraction of Ds1(2536)-→D∗0K-is measured from the DsDs1(2536) threshold to 5.59 GeV.

AB - Using a data sample of 921.9 fb-1 collected with the Belle detector, we study the process of e+e-→Ds+Ds1(2536)-+c.c. via initial-state radiation. We report the first observation of a vector charmoniumlike state decaying to Ds+Ds1(2536)-+c.c. with a significance of 5.9σ, including systematic uncertainties. The measured mass and width are (4625.9-6.0+6.2(stat)±0.4(syst)) MeV/c2 and (49.8-11.5+13.9(stat)±4.0(syst)) MeV, respectively. The product of the e+e-→Ds+Ds1(2536)-+c.c. cross section and the branching fraction of Ds1(2536)-→D∗0K-is measured from the DsDs1(2536) threshold to 5.59 GeV.

UR - http://www.scopus.com/inward/record.url?scp=85077912813&partnerID=8YFLogxK

U2 - 10.1103/PhysRevD.100.111103

DO - 10.1103/PhysRevD.100.111103

M3 - Article

AN - SCOPUS:85077912813

SN - 2470-0010

VL - 100

JO - Physical Review D

JF - Physical Review D

IS - 11

M1 - 111103

ER -

Observation of a vector charmoniumlike state in e+e-→ Ds+ Ds1 (2536)-+ c. c.

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