@article{discovery1308539,
         journal = {PHYS REV LETT},
       publisher = {AMERICAN PHYSICAL SOC},
            note = {{\copyright} 2007 The American Physical Society},
           title = {Search for invisible decay of the Upsilon(1S)},
          volume = {98},
            year = {2007},
          number = {13},
           month = {March},
        abstract = {We report results of a search for the invisible decay of the Upsilon(1S) via the Upsilon(3S)-{\ensuremath{>}}pi(+)pi(-)Upsilon(1S) transition using a data sample of 2.9 fb(-1) at the Upsilon(3S) resonance. The data were collected with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. No signal is found, and an upper limit for the branching fraction at the 90\% confidence level is determined to be B(Upsilon(1S)-{\ensuremath{>}} invisible){\ensuremath{<}} 2.5x10(-3).},
        keywords = {BELLE DETECTOR},
             url = {http://dx.doi.org/10.1103/PhysRevLett.98.132001},
            issn = {0031-9007},
          author = {Tajima, O and Hayashii, H and Hazumi, M and Inami, K and Iwasaki, Y and Uehara, S and Abe, K and Adachi, I and Aihara, H and Anipko, D and Aulchenko, V and Bakich, AM and Barberio, E and Bedny, I and Belous, K and Bitenc, U and Bizjak, I and Bondar, A and Bozek, A and Bracko, M and Browder, TE and Chang, MC and Chen, A and Chen, KF and Chen, WT and Cheon, BG and Chistov, R and Choi, Y and Choi, YK and Cole, S and Dalseno, J and Danilov, M and Dash, M and Drutskoy, A and Eidelman, S and Fratina, S and Gabyshev, N and Gershon, T and Go, A and Gokhroo, G and Ha, H and Haba, J and Hayasaka, K and Heffernan, D and Hokuue, T and Hoshi, Y and Hou, S and Hou, WS and Iijima, T and Ikado, K and Ishikawa, A and Ishino, H and Itoh, R and Iwasaki, M and Kang, JH and Kataoka, SU and Katayama, N and Kawai, H and Kawasaki, T and Khan, HR and Kichimi, H and Kim, HJ and Kim, SK and Kim, YJ and Kinoshita, K and Korpar, S and Krizan, P and Krokovny, P and Kumar, R and Kuo, CC and Kuzmin, A and Kwon, YJ and Lange, JS and Lee, J and Lee, MJ and Lesiak, T and Limosani, A and Lin, SW and Liventsev, D and Majumder, G and Mandl, F and Matsumoto, T and McOnie, S and Miyabayashi, K and Miyake, H and Miyata, H and Miyazaki, Y and Mizuk, R and Mori, T and Mueller, J and Nakamura, I and Nakano, E and Nakao, M and Nakazawa, H and Natkaniec, Z and Nishida, S and Nitoh, O and Noguchi, S and Nozaki, T and Ogawa, S and Ohshima, T and Okuno, S and Olsen, SL and Onuki, Y and Ozaki, H and Pakhlov, P and Pakhlova, G and Park, H and Pestotnik, R and Piilonen, LE and Sahoo, H and Sakai, Y and Satoyama, N and Schietinger, T and Schneider, O and Schumann, J and Schwartz, AJ and Seidl, R and Senyo, K and Sevior, ME and Shapkin, M and Shibuya, H and Shwartz, B and Singh, JB and Sokolov, A and Somov, A and Soni, N and Stanic, S and Staric, M and Stoeck, H and Sumisawa, K and Sumiyoshi, T and Suzuki, S and Takasaki, F and Tamai, K and Tamura, N and Tanaka, M and Taylor, GN and Teramoto, Y and Tian, XC and Tikhomirov, I and Trabelsi, K and Tsuboyama, T and Tsukamoto, T and Uglov, T and Uno, S and Urquijo, P and Ushiroda, Y and Usov, Y and Varner, G and Villa, S and Wang, CC and Wang, CH and Wang, MZ and Watanabe, Y and Wedd, R and Wicht, J and Won, E and Xie, QL and Yabsley, BD and Yamaguchi, A and Yamashita, Y and Yamauchi, M and Zhang, ZP and Zhilich, V and Zupanc, A and Belle Collaboration, {}}
}