Measurements of B → D ¯ Ds0∗+ (2317) decay rates and a search for isospin partners of the Ds0∗+ (2317)


Journal Article

© 2015 American Physical Society. We report improved measurements of the product branching fractions B(B+→D¯0Ds0∗+(2317))×B(Ds0∗+(2317)→Ds+π0)=(8.0-1.2+1.3±1.1±0.4)×10-4 and B(B0→D-Ds0∗+(2317))×B(Ds0∗+(2317)→Ds+π0)=(10.2-1.2+1.3±1.0±0.4)×10-4, where the first errors are statistical, the second are systematic and the third are from D and Ds+ branching fractions. In addition, we report negative results from a search for hypothesized neutral (z0) and doubly charged (z++) isospin partners of the Ds0∗+(2317) and provide upper limits on the product branching fractions B(B0→D0z0)×B(z0→Ds+π-) and B(B+→D0z++)×B(z++→Ds+π+) that are more than an order of magnitude smaller than theoretical expectations for the hypotheses that the Ds0∗+(2317) is a member of an isospin triplet. The analysis uses a 711fb-1 data sample containing 772 million BB¯-meson pairs collected at the γ(4S) resonance in the Belle detector at the KEKB collider.

Full Text

Duke Authors

Cited Authors

  • Choi, SK; Olsen, SL; Abdesselam, A; Adachi, I; Aihara, H; Arinstein, K; Asner, DM; Aushev, T; Ayad, R; Babu, V; Badhrees, I; Bakich, AM; Barberio, E; Bhardwaj, V; Bhuyan, B; Bonvicini, G; Bozek, A; Bračko, M; Browder, TE; Červenkov, D; Chen, A; Cheon, BG; Chilikin, K; Chistov, R; Cho, K; Chobanova, V; Choi, Y; Cinabro, D; Dalseno, J; Danilov, M; Doležal, Z; Drásal, Z; Drutskoy, A; Dutta, D; Eidelman, S; Farhat, H; Fast, JE; Ferber, T; Fulsom, BG; Gaur, V; Gabyshev, N; Garmash, A; Getzkow, D; Gillard, R; Glattauer, R; Goh, YM; Golob, B; Haba, J; Hara, T; Hayasaka, K; Hayashii, H; He, XH; Horiguchi, T; Hou, WS; Iijima, T; Inami, K; Inguglia, G; Ishikawa, A; Itoh, R; Iwasaki, Y; Jaegle, I; Joffe, D; Julius, T; Kang, KH; Kato, E; Katrenko, P; Kawasaki, T; Kim, BH; Kim, DY; Kim, HJ; Kim, JB; Kim, JH; Kim, KT; Kim, SH; Kim, YJ; Kinoshita, K; Ko, BR; Kodyš, P; Korpar, S; Križan, P; Krokovny, P; Kumita, T; Kuzmin, A; Kwon, YJ; Lange, JS; Lee, IS; Lewis, P; Li, H; Li Gioi, L; Libby, J; Lukin, P; Matvienko, D; Miyabayashi, K; Miyata, H; Mizuk, R; Mohanty, GB; Moll, A; Moon, HK; Mori, T; Mussa, R

Published Date

  • May 28, 2015

Published In

Volume / Issue

  • 91 / 9

Electronic International Standard Serial Number (EISSN)

  • 1550-2368

International Standard Serial Number (ISSN)

  • 1550-7998

Digital Object Identifier (DOI)

  • 10.1103/PhysRevD.91.092011

Citation Source

  • Scopus