Search for a doubly charged DDK bound state in Ï’ (1S, 2S) inclusive decays and via direct production in e+e- collisions at s =10.520, 10.580, and 10.867 GeV SEARCH for A DOUBLY CHARGED DDK BOUND STATE in ... LI Y. et al.

Date Issued
01-12-2020
Author(s)
Li, Y.
Jia, S.
Shen, C. P.
Adachi, I.
Aihara, H.
Al Said, S.
Asner, D. M.
Aushev, T.
Ayad, R.
Babu, V.
Bahinipati, S.
Behera, P.
Belous, K.
Bennett, J.
Bessner, M.
Bhardwaj, V.
Bhuyan, B.
Bilka, T.
Biswal, J.
Bonvicini, G.
Bozek, A.
BraÄ ko, M.
Browder, T. E.
Campajola, M.
ÄŒervenkov, D.
Chang, M. C.
Chang, P.
Chen, A.
Cheon, B. G.
Chilikin, K.
Cho, K.
Cho, S. J.
Choi, S. K.
Choi, Y.
Choudhury, S.
Cinabro, D.
Cunliffe, S.
Das, S.
Dash, N.
De Nardo, G.
Di Capua, F.
Dingfelder, J.
DoleŽal, Z.
Dong, T. V.
Eidelman, S.
Epifanov, D.
Ferber, T.
Fulsom, B. G.
Garg, R.
Gaur, V.
Garmash, A.
Giri, A.
Goldenzweig, P.
Guan, Y.
Hadjivasiliou, C.
Hartbrich, O.
Hayasaka, K.
Hayashii, H.
Hedges, M. T.
Hou, W. S.
Hsu, C. L.
Inami, K.
Inguglia, G.
Ishikawa, A.
Itoh, R.
Iwasaki, M.
Iwasaki, Y.
Jacobs, W. W.
Jeon, H. B.
Jin, Y.
Joo, C. W.
Joo, K. K.
Kaliyar, A. B.
Kang, K. H.
Karyan, G.
Kawasaki, T.
Kiesling, C.
Kim, D. Y.
Kim, K. H.
Kim, S. H.
Kim, Y. K.
Kinoshita, K.
Kodyš, P.
Konno, T.
Korpar, S.
Kotchetkov, D.
KriŽan, P.
Kroeger, R.
Krokovny, P.
Kuhr, T.
Kulasiri, R.
Kumar, M.
Kumar, R.
Kumara, K.
Kwon, Y. J.
Lalwani, K.
Lange, J. S.
Lee, I. S.
Lee, S. C.
Li, C. H.
DOI
Abstract
We report the results of a first search for a doubly charged DDK bound state, denoted the R++, in ϒ(1S) and ϒ(2S) inclusive decays and via direct production in e+e- collisions at s=10.520, 10.580, and 10.867 GeV. The search uses data accumulated with the Belle detector at the KEKB asymmetric-energy e+e- collider. No significant signals are observed in the D+Ds∗+ invariant-mass spectra of all studied modes. The 90% credibility level upper limits on their product branching fractions in ϒ(1S) and ϒ(2S) inclusive decays (B(ϒ(1S, 2S)→R+++anything)×B(R++→D+Ds∗+)), the product values of Born cross section and branching fraction in e+e- collisions (σ(e+e-→R+++anything)×B(R++→D+Ds∗+)) at s=10.520, 10.580, and 10.867 GeV under different assumptions of R++ masses varying from 4.13 to 4.17 GeV/c2 and widths varying from 0 to 5 MeV are obtained.
Volume
102