Observation of an alternative χc0(2P) candidate in e+e−→J/ψDD¯

Published

Journal Article

© 2017 American Physical Society. We perform a full amplitude analysis of the process e+e-→J/ψDD, where D refers to either D0 or D+. A new charmoniumlike state X∗(3860) that decays to DD is observed with a significance of 6.5σ. Its mass is (3862-32+26 -13+40) MeV/c2, and its width is (201-67+154 -82+88) MeV. The JPC=0++ hypothesis is favored over the 2++ hypothesis at the level of 2.5σ. The analysis is based on the 980 fb-1 data sample collected by the Belle detector at the asymmetric-energy e+e- collider KEKB.

Full Text

Duke Authors

Cited Authors

  • Chilikin, K; Adachi, I; Aihara, H; Al Said, S; Asner, DM; Aulchenko, V; Ayad, R; Babu, V; Badhrees, I; Bakich, AM; Bansal, V; Barberio, E; Besson, D; Bhardwaj, V; Bhuyan, B; Biswal, J; Bobrov, A; Bondar, A; Bozek, A; Bračko, M; Browder, TE; Červenkov, D; Chekelian, V; Chen, A; Cheon, BG; Cho, K; Choi, Y; Cinabro, D; Dash, N; Di Carlo, S; DoleŽal, Z; Drásal, Z; Dutta, D; Eidelman, S; Farhat, H; Fast, JE; Ferber, T; Fulsom, BG; Gaur, V; Gabyshev, N; Garmash, A; Gillard, R; Goldenzweig, P; Haba, J; Hara, T; Hayasaka, K; Hou, WS; Inami, K; Ishikawa, A; Itoh, R; Iwasaki, Y; Jacobs, WW; Jaegle, I; Jeon, HB; Jin, Y; Joffe, D; Joo, KK; Julius, T; Kang, KH; Karyan, G; Katrenko, P; Kim, DY; Kim, HJ; Kim, JB; Kim, KT; Kim, MJ; Kim, SH; Kim, YJ; Kinoshita, K; Kodyš, P; Korpar, S; Kotchetkov, D; KriŽan, P; Krokovny, P; Kuhr, T; Kulasiri, R; Kuzmin, A; Kwon, YJ; Lange, JS; Li, L; Li Gioi, L; Libby, J; Liventsev, D; Lubej, M; Luo, T; Masuda, M; Matsuda, T; Matvienko, D; Miyabayashi, K; Miyata, H; Mizuk, R; Mohanty, GB; Moon, HK; Mori, T; Mussa, R; Nakano, E; Nakao, M; Nanut, T; Nath, KJ; Natkaniec, Z

Published Date

  • June 1, 2017

Published In

Volume / Issue

  • 95 / 11

Electronic International Standard Serial Number (EISSN)

  • 2470-0029

International Standard Serial Number (ISSN)

  • 2470-0010

Digital Object Identifier (DOI)

  • 10.1103/PhysRevD.95.112003

Citation Source

  • Scopus