Observation of B0→π0π0
Chao, Y.; Chang, P.; Abe, K.; Aihara, H.; Akai, K.; Akatsu, M.; Akemoto, M.; Asano, Y.; Aushev, T.; Bahinipati, S.; Bakich, A.M.; Bay, A.; Bedny, I.; Bitenc, U.; Bizjak, I.; Bondar, A.; Bozek, A.; Bračko, M.; Brodzicka, J.; Browder, T.E.; Chen, A.; Chen, K.-F.; Chen, W.T.; Cheon, B.G.; Chistov, R.; Choi, S.-K.; Choi, Y.; Chuvikov, A.; Dalseno, J.; Danilov, M.; Dash, M.; Dragic, J.; Drutskoy, A.; Eidelman, S.; Eiges, V.; Enari, Y.; Fang, F.; Flanagan, J.; Fratina, S.; Furukawa, K.; Gabyshev, N.; Garmash, A.; Gershon, T.; Gokhroo, G.; Golob, B.; Haba, J.; Hastings, N.C.; Hayasaka, K.; Hayashii, H.; Hazumi, M.; Hinz, L.; Hokuue, T.; Hoshi, Y.; Hou, S.; Hou, W.-S.; Hsiung, Y.B.; Iijima, T.; Ikeda, H.; Imoto, A.; Inami, K.; Ishikawa, A.; Itoh, R.; Iwasaki, M.; Iwasaki, Y.; Kang, J.H.; Kang, J.S.; Kapusta, P.; Kataoka, S.U.; Katayama, N.; Kawai, H.; Kawasaki, T.; Khan, H.R.; Kichimi, H.; Kikutani, E.; Kim, H.J.; Kim, J.H.; Kim, S.K.; Kinoshita, K.; Koiso, H.; Korpar, S.; Krokovny, P.; Kumar, S.; Kuo, C.C.; Kuzmin, A.; Kwon, Y.-J.; Lange, J.S.; Leder, G.; Lee, S.E.; Lee, S.H.; Lee, Y.-J.; Lesiak, T.; Li, J.; Limosani, A.; Lin, S.-W.; MacNaughton, J.; Majumder, G.; Mandl, F.; Matsumoto, T.
2005
Abstract
We report the observation of the decay B0→π0π0, using a 253fb-1 data sample collected at the Υ(4S) resonance with the Belle detector at the KEKB e+e- collider. The measured branching fraction is B(B0→π0π0)= (2.3-0.5-0.3+0.4+0.2)×10-6, with a significance of 5.8 standard deviations including systematic uncertainties. We also make a measurement of the direct CP violating asymmetry in this mode. © 2005 The American Physical Society.
Details
Title
Observation of B0→π0π0
Author(s)
Chao, Y. ; Chang, P. ; Abe, K. ; Aihara, H. ; Akai, K. ; Akatsu, M. ; Akemoto, M. ; Asano, Y. ; Aushev, T. ; Bahinipati, S. ; Bakich, A.M. ; Bay, A. ; Bedny, I. ; Bitenc, U. ; Bizjak, I. ; Bondar, A. ; Bozek, A. ; Bračko, M. ; Brodzicka, J. ; Browder, T.E. ; Chen, A. ; Chen, K.-F. ; Chen, W.T. ; Cheon, B.G. ; Chistov, R. ; Choi, S.-K. ; Choi, Y. ; Chuvikov, A. ; Dalseno, J. ; Danilov, M. ; Dash, M. ; Dragic, J. ; Drutskoy, A. ; Eidelman, S. ; Eiges, V. ; Enari, Y. ; Fang, F. ; Flanagan, J. ; Fratina, S. ; Furukawa, K. ; Gabyshev, N. ; Garmash, A. ; Gershon, T. ; Gokhroo, G. ; Golob, B. ; Haba, J. ; Hastings, N.C. ; Hayasaka, K. ; Hayashii, H. ; Hazumi, M. ; Hinz, L. ; Hokuue, T. ; Hoshi, Y. ; Hou, S. ; Hou, W.-S. ; Hsiung, Y.B. ; Iijima, T. ; Ikeda, H. ; Imoto, A. ; Inami, K. ; Ishikawa, A. ; Itoh, R. ; Iwasaki, M. ; Iwasaki, Y. ; Kang, J.H. ; Kang, J.S. ; Kapusta, P. ; Kataoka, S.U. ; Katayama, N. ; Kawai, H. ; Kawasaki, T. ; Khan, H.R. ; Kichimi, H. ; Kikutani, E. ; Kim, H.J. ; Kim, J.H. ; Kim, S.K. ; Kinoshita, K. ; Koiso, H. ; Korpar, S. ; Krokovny, P. ; Kumar, S. ; Kuo, C.C. ; Kuzmin, A. ; Kwon, Y.-J. ; Lange, J.S. ; Leder, G. ; Lee, S.E. ; Lee, S.H. ; Lee, Y.-J. ; Lesiak, T. ; Li, J. ; Limosani, A. ; Lin, S.-W. ; MacNaughton, J. ; Majumder, G. ; Mandl, F. ; Matsumoto, T.
Published in
Physical Review Letters
Volume
94
Issue
18
Pages
181803
Date
2005
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Laboratories
LPHE
Record Appears in
Scientific production and competences > SB - School of Basic Sciences > IPHYS - Institute of Physics > LPHE - High Energy Physics Laboratory
Peer-reviewed publications
Work produced at EPFL
Journal Articles
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Peer-reviewed publications
Work produced at EPFL
Journal Articles
Published
Record creation date
2010-11-05