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Evidence for a vector charmoniumlike state in e(+ )e(-) -> Ds+Ds2*(2573)(-) + c.c

Authors
Jia, S.Shen, C. P.Adachi, IAihara, H.Al Said, S.Asner, D. M.Atmacan, H.Aulchenko, VAushev, T.Ayad, R.Badhrees, IBehera, P.Belous, K.Bennett, J.Besson, D.Bhardwaj, VBilka, T.Biswal, J.Bonvicini, G.Bozek, A.Bracko, M.Browder, T. E.Campajola, M.Cervenkov, D.Chang, P.Chen, A.Cheon, B. G.Chilikin, K.Cho, K.Choi, S-KChoi, Y.Choudhury, S.Cinabro, D.Cunliffe, S.Dash, N.De Nardo, G.Di Capua, F.Dolezal, Z.Dong, T., VEidelman, S.Epifanov, D.Fast, J. E.Ferber, T.Ferlewicz, D.Fulsom, B. G.Garg, R.Gaur, VGabyshev, N.Garmash, A.Giri, A.Goldenzweig, P.Golob, B.Grzymkowska, O.Hartbrich, O.Hayasaka, K.Hayashii, H.Hou, W-SHsu, C-LInami, K.Inguglia, G.Ishikawa, A.Itoh, R.Iwasaki, M.Iwasaki, Y.Jeon, H. B.Jin, Y.Joo, K. K.Karyan, G.Kawasaki, T.Kiesling, C.Kim, B. H.Kim, D. Y.Kim, K-HKim, S. H.Kim, Y-KKinoshita, K.Kodys, P.Korpar, S.Kotchetkov, D.Krizan, P.Kroeger, R.Krokovny, P.Kulasiri, R.Kuzmin, A.Kwon, Y-JLalwani, K.Lange, J. S.Lee, S. C.Li, L. K.Li, Y. B.Li Gioi, L.Libby, J.Lieret, K.Liventsev, D.MacNaughton, J.MacQueen, C.Masuda, M.Matsuda, T.Matvienko, D.Merola, M.Mizuk, R.Moon, T. J.Mori, T.Mrvar, M.Nakao, M.Nayak, M.Nisar, N. K.Nishida, S.Ogawa, S.Ono, H.Oskin, P.Pakhlov, P.Pakhlova, G.Pardi, S.Patra, S.Paul, S.Pedlar, T. K.Pestotnik, R.Piilonen, L. E.Podobnik, T.Popov, VPrencipe, E.Prim, M. T.Rostomyan, A.Rout, N.Russo, G.Sakai, Y.Sandilya, S.Santelj, L.Sanuki, T.Savinov, VSchnell, G.Schueler, J.Schwanda, C.Seino, Y.Senyo, K.Sevior, M. E.Shapkin, M.Shebalin, VShiu, J-GShwartz, B.Solovieva, E.Stanic, S.Staric, M.Stottler, Z. S.Strube, J. F.Sumihama, M.Sumiyoshi, T.Sutcliffe, W.Takizawa, M.Tanida, K.Tenchini, F.Uchida, M.Uglov, T.Unno, Y.Uno, S.Usov, Y.Van Tonder, R.Varner, G.Vinokurova, A.Wang, C. H.Wang, E.Wang, M-ZWang, P.Wang, X. L.Watanabe, M.Won, E.Xu, X.Yan, W.Yang, S. B.Ye, H.Yuan, C. Z.Yusa, Y.Zhang, Z. P.Zhilich, VZhukova, VZhulanov, V
Issue Date
12-5월-2020
Publisher
AMER PHYSICAL SOC
Citation
PHYSICAL REVIEW D, v.101, no.9
Indexed
SCIE
SCOPUS
Journal Title
PHYSICAL REVIEW D
Volume
101
Number
9
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/56013
DOI
10.1103/PhysRevD.101.091101
ISSN
2470-0010
Abstract
We report the measurement of e(+) e(-) -> D-s(+) Ds(2)*(2573)(-) c.c. via initial-state radiation using a data sample of an integrated luminosity of 921.9 fb(-1) collected with the Belle detector at the Upsilon(4S) and nearby. We find evidence for an enhancement with a 3.4 sigma significance in the invariant mass of Ds+Ds2*(2573)(-) + c.c. The measured mass and width are (4619.8(-8.0)(+8.9)(stat.) +/- 2.3(syst.)) MeV/c(2) and (47.0(-14.8)(+31.3)(stat.) +/- 4.6(syst.)) MeV, respectively. The mass, width, and quantum numbers of this enhancement are consistent with the charmoniumlike state at 4626 MeV/c(2) recently reported by Belle in e(+) e(-) -> Ds+ Ds1(2536)(-) c.c. The product of the e(+) e(-) -> D-s(+) Ds(2)*(2573)(-) + c.c. cross section and the branching fraction of D-s2*(2573)(-) -> (D) over bar K-0(-) is measured from Ds+Ds2*(2573)(-) threshold to 5.6 GeV.
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