Evidence for the decay B0 →ηπ0

Published

Journal Article

© 2015 American Physical Society. © 2015 American Physical Society. We report a search for the charmless hadronic decay B0→ηπ0 with a data sample corresponding to an integrated luminosity of 694 fb-1 containing 753×106 BB¯ pairs. The data were collected by the Belle experiment running on the Y(4S) resonance at the KEKB e+e- collider. We measure a branching fraction B(B0→ηπ0)=(4.1-1.5-0.7+1.7+0.5)×10-7, where the first uncertainty is statistical and the second is systematic. Our measurement gives an upper limit of B(B0→ηπ0)<6.5×10-7 at 90% confidence level. The signal has a significance of 3.0 standard deviations and constitutes the first evidence for this decay mode.

Full Text

Duke Authors

Cited Authors

  • Pal, B; Schwartz, AJ; Abdesselam, A; Adachi, I; Aihara, H; Al Said, S; Arinstein, K; Asner, DM; Aulchenko, V; Aushev, T; Ayad, R; Babu, V; Badhrees, I; Bakich, AM; Bobrov, A; Bonvicini, G; Bozek, A; Bračko, M; Browder, TE; Červenkov, D; Chang, MC; Chekelian, V; Chen, A; Cheon, BG; Cho, K; Chobanova, V; Choi, Y; Cinabro, D; Dalseno, J; Doležal, Z; Drásal, Z; Drutskoy, A; Dutta, D; Eidelman, S; Farhat, H; Fast, JE; Ferber, T; Frost, O; Fulsom, BG; Gaur, V; Gabyshev, N; Ganguly, S; Garmash, A; Getzkow, D; Gillard, R; Glattauer, R; Goh, YM; Golob, B; Grzymkowska, O; Hara, T; Hayasaka, K; Hayashii, H; He, XH; Hou, WS; Huschle, M; Hyun, HJ; Iijima, T; Ishikawa, A; Itoh, R; Iwasaki, Y; Jaegle, I; Julius, T; Kang, KH; Kato, E; Kiesling, C; Kim, DY; Kim, JB; Kim, JH; Kim, KT; Kim, MJ; Kim, SH; Kim, YJ; Kinoshita, K; Ko, BR; Kodyš, P; Korpar, S; Križan, P; Krokovny, P; Kuhr, T; Kumita, T; Kuzmin, A; Kwon, YJ; Lange, JS; Lee, DH; Lee, IS; Li, Y; Li Gioi, L; Libby, J; Liventsev, D; Lukin, P; Matvienko, D; Miyata, H; Mohanty, GB; Moll, A; Moon, HK; Nakamura, KR; Nakano, E; Nakao, M; Nanut, T; Natkaniec, Z

Published Date

  • July 9, 2015

Published In

Volume / Issue

  • 92 / 1

Electronic International Standard Serial Number (EISSN)

  • 1550-2368

International Standard Serial Number (ISSN)

  • 1550-7998

Digital Object Identifier (DOI)

  • 10.1103/PhysRevD.92.011101

Citation Source

  • Scopus