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. 2003 Dec 31;91(26 Pt 1):261801.
doi: 10.1103/PhysRevLett.91.261801. Epub 2003 Dec 24.

Evidence for B0-->pi0pi0

S H Lee  1 , K Suzuki, K Abe, K Abe, T Abe, I Adachi, Byoung Sup Ahn, H Aihara, K Akai, M Akatsu, M Akemoto, Y Asano, V Aulchenko, T Aushev, A M Bakich, Y Ban, S Banerjee, A Bay, I Bedny, I Bizjak, A Bondar, A Bozek, M Bracko, T E Browder, P Chang, Y Chao, K-F Chen, B G Cheon, R Chistov, S-K Choi, Y Choi, A Chuvikov, M Danilov, L Y Dong, J Dragic, A Drutskoy, S Eidelman, V Eiges, Y Enari, J Flanagan, C Fukunaga, K Furukawa, N Gabyshev, A Garmash, T Gershon, B Golob, R Guo, J Haba, C Hagner, F Handa, N C Hastings, H Hayashii, M Hazumi, I Higuchi, T Hokuue, Y Hoshi, W-S Hou, H-C Huang, Y Igarashi, T Iijima, H Ikeda, K Inami, A Ishikawa, R Itoh, H Iwasaki, M Iwasaki, Y Iwasaki, H Kakuno, J H Kang, J S Kang, P Kapusta, S U Kataoka, N Katayama, H Kawai, H Kawai, T Kawasaki, H Kichimi, E Kikutani, H J Kim, Hyunwoo Kim, J H Kim, S K Kim, K Kinoshita, H Koiso, S Korpar, P Krizan, P Krokovny, R Kulasiri, A Kuzmin, Y-J Kwon, J S Lange, G Leder, T Lesiak, J Li, A Limosani, S-W Lin, D Liventsev, J MacNaughton, F Mandl, D Marlow, M Masuzawa, T Matsumoto, A Matyja, S Michizono, T Mimashi, W Mitaroff, H Miyake, H Miyata, D Mohapatra, G R Moloney, T Mori, T Nagamine, Y Nagasaka, T Nakadaira, T T Nakamura, E Nakano, M Nakao, H Nakazawa, Z Natkaniec, S Nishida, O Nitoh, T Nozaki, S Ogawa, Y Ogawa, K Ohmi, Y Ohnishi, T Ohshima, N Ohuchi, K Oide, T Okabe, S Okuno, S L Olsen, W Ostrowicz, H Ozaki, C W Park, H Park, K S Park, N Parslow, L S Peak, M Peters, L E Piilonen, N Root, H Sagawa, S Saitoh, Y Sakai, T R Sarangi, M Satapathy, A Satpathy, O Schneider, J Schümann, C Schwanda, A J Schwartz, S Semenov, K Senyo, R Seuster, M E Sevior, H Shibuya, T Shidara, B Shwartz, V Sidorov, J B Singh, N Soni, S Stanic, M Staric, R Sugahara, A Sugi, K Sumisawa, T Sumiyoshi, S Suzuki, F Takasaki, K Tamai, N Tamura, M Tanaka, M Tawada, G N Taylor, Y Teramoto, T Tomura, K Trabelsi, T Tsuboyama, T Tsukamoto, S Uehara, Y Unno, S Uno, G Varner, K E Varvell, C C Wang, C H Wang, J G Wang, M-Z Wang, Y Watanabe, E Won, B D Yabsley, Y Yamada, A Yamaguchi, Y Yamashita, M Yamauchi, H Yanai, Heyoung Yang, M Yoshida, Y Yusa, S L Zang, J Zhang, Z P Zhang, Y Zheng, V Zhilich, D Zontar, D Zürcher; Belle Collaboration
Affiliations

Evidence for B0-->pi0pi0

S H Lee et al. Phys Rev Lett. .

Abstract

We report evidence for the decay B0-->pi(0)pi(0). The analysis is based on a data sample of 152x10(6) BBmacr; pairs collected at the Upsilon(4S) resonance with the Belle detector at the KEKB e(+)e(-) storage ring. We detect a signal for B0-->pi(0)pi(0) with a significance of 3.4 standard deviations, and measure the branching fraction to be [1.7+/-0.6(stat)+/-0.2(syst)]x10(-6).

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