Measurement of time-dependent CP violation in B0 → KS0 π0π0 decays

Journal Article (Journal Article)

We report a measurement of time-dependent CP violation in B0→KS0π0π0 decays using a data sample of 772×106 BB pairs collected by the Belle experiment running at the ?(4S) resonance at the KEKB e+e- collider. This decay proceeds mainly via a b→sdd "penguin" amplitude. The results are sin2φ1eff=0.92-0.31+0.27 (stat.) ±0.11 (syst.) and A=0.28±0.21 (stat.) ±0.04 (syst.), which are the most precise measurements of CP violation in this decay mode to date. The value for the CP-violating parameter sin2φ1eff is consistent with that obtained using decay modes proceeding via a b→ccs "tree" amplitude.

Full Text

Duke Authors

Cited Authors

  • Yusa, Y; Aihara, H; Al Said, S; Asner, DM; Atmacan, H; Aulchenko, V; Aushev, T; Ayad, R; Babu, V; Badhrees, I; Bahinipati, S; Bakich, AM; Bansal, V; Behera, P; Bhardwaj, V; Bhuyan, B; Biswal, J; Bozek, A; Bračko, M; Browder, TE; Cao, L; Červenkov, D; Chekelian, V; Chen, A; Cheon, BG; Chilikin, K; Choi, SK; Choi, Y; Cinabro, D; Cunliffe, S; Dash, N; Di Carlo, S; Dong, TV; Drásal, Z; Eidelman, S; Epifanov, D; Fast, JE; Fulsom, BG; Garg, R; Gaur, V; Garmash, A; Giri, A; Goldenzweig, P; Golob, B; Guan, Y; Haba, J; Hayasaka, K; Hayashii, H; Hirose, S; Inami, K; Inguglia, G; Ishikawa, A; Itoh, R; Iwasaki, M; Iwasaki, Y; Jacobs, WW; Jia, S; Jin, Y; Joo, KK; Kang, KH; Kawasaki, T; Kiesling, C; Kim, DY; Kim, JB; Kim, KT; Kim, SH; Kinoshita, K; Kodyš, P; Korpar, S; Kotchetkov, D; KriŽan, P; Kroeger, R; Kuhr, T; Kumar, R; Kwon, YJ; Lange, JS; Lee, IS; Lee, SC; Li, LK; Li, YB; Li Gioi, L; Libby, J; Liventsev, D; Lubej, M; Luo, T; Masuda, M; Matsuda, T; Merola, M; Miyabayashi, K; Miyata, H; Mizuk, R; Mohanty, GB; Moon, HK; Nakano, E; Nakao, M; Nanut, T; Nath, KJ; Natkaniec, Z; Nisar, NK; Nishida, S

Published Date

  • January 1, 2019

Published In

Volume / Issue

  • 99 / 1

Electronic International Standard Serial Number (EISSN)

  • 2470-0029

International Standard Serial Number (ISSN)

  • 2470-0010

Digital Object Identifier (DOI)

  • 10.1103/PhysRevD.99.011102

Citation Source

  • Scopus