Search for $B^0$ decays to invisible final states at Belle

Journal Article · Wed Aug 01 00:00:00 EDT 2012 · Physical Review. D, Particles, Fields, Gravitation and Cosmology

DOI:https://doi.org/10.1103/PhysRevD.86.032002· OSTI ID:1337739

Hsu, C. -L.; Chang, P.; Adachi, I.; Aihara, H.; Arinstein, K.; Asner, D. M.; Aulchenko, V.; Aushev, T.; Bakich, A. M.; Bhuyan, B.; Bischofberger, M.; Bondar, A.; Bonvicini, G.; Bozek, A.; Bračko, M.; Browder, T. E.; Chang, M. -C.; Chao, Y.; Chekelian, V.; Chen, A. ; Chen, P.; Cheon, B. G.; Chilikin, K.; Cho, I. -S.; Cho, K.; Choi, Y.; Dalseno, J.; Dingfelder, J.; Doležal, Z.; Drásal, Z.; Dutta, D.; Eidelman, S.; Epifanov, D.; Esen, S.; Farhat, H.; Fast, J. E.; Gaur, V.; Gabyshev, N.; Gillard, R.; Goh, Y. M.; Haba, J.; Hara, T.; Hayasaka, K.; Hayashii, H.; Horii, Y.; Hoshi, Y.; Hou, W. -S.; Hsiung, Y. B.; Hyun, H. J.; Iijima, T.; Inami, K.; Ishikawa, A.; Itoh, R.; Iwabuchi, M.; Iwasaki, Y.; Iwashita, T.; Julius, T.; Kang, J. H.; Kawasaki, T.; Kichimi, H.; Kiesling, C.; Kim, H. J.; Kim, H. O.; Kim, J. B.; Kim, J. H.; Kim, K. T.; Kim, Y. J.; Ko, B. R.; Kodyš, P.; Korpar, S.; Krokovny, P.; Kuhr, T.; Kuzmin, A.; Kvasnička, P.; Kwon, Y. -J.; Lee, S. -H.; Li, J.; Li, Y.; Libby, J.; Liu, Y.; Liu, Z. Q.; Liventsev, D.; Louvot, R.; Miyabayashi, K.; Miyata, H.; Miyazaki, Y.; Mohanty, G. B.; Moll, A.; Muramatsu, N.; Nakano, E.; Nakao, M.; Natkaniec, Z.; Ng, C.; Nishida, S.; Nitoh, O.; Ohshima, T.; Okuno, S.; Olsen, S. L.; Pakhlova, G.; Park, C. W.; Park, H.; Park, H. K.; Pedlar, T. K.; Pestotnik, R.; Petrič, M.; Piilonen, L. E.; Ritter, M.; Röhrken, M.; Ryu, S.; Sahoo, H.; Sakai, Y.; Sandilya, S.; Sanuki, T.; Schneider, O.; Schwanda, C.; Schwartz, A. J.; Senyo, K.; Sevior, M. E.; Shapkin, M.; Shen, C. P.; Shibata, T. -A.; Shiu, J. -G.; Shwartz, B.; Sibidanov, A.; Simon, F.; Singh, J. B.; Smerkol, P.; Sohn, Y. -S.; Solovieva, E.; Stanič, S.; Starič, M.; Sumihama, M.; Sumiyoshi, T.; Tatishvili, G.; Teramoto, Y.; Trabelsi, K.; Uchida, M.; Uglov, T.; Unno, Y.; Uno, S.; Urquijo, P.; Usov, Y.; Vahsen, S. E.; Vanhoefer, P.; Varner, G.; Vorobyev, V.; Wang, P.; Watanabe, M.; Watanabe, Y.; Williams, K. M.; Won, E.; Yamamoto, H.; Yamashita, Y.; Zhang, Z. P.; Zhilich, V.; Zhulanov, V.

We report a search for B0 decays into invisible final states using a data sample of 657×106 B$$\bar{B}$$B pairs collected at the Υ(4S) resonance with the Belle detector at the KEKB e⁺e^- collider. The signal is identified by fully reconstructing a hadronic decay of the accompanying B meson and requiring no other particles in the event. No significant signal is observed, and we obtain an upper limit of 1.3×10^-4 at the 90% confidence level for the branching fraction of invisible B⁰ decay.

• Research Organization: Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
• Sponsoring Organization: USDOE
• Contributing Organization: Belle Collaboration
• DOE Contract Number: AC05-76RL01830
• OSTI ID: 1337739
• Report Number(s): PNNL-SA-90522; PRVDAQ; KA2201020
• Journal Information: Physical Review. D, Particles, Fields, Gravitation and Cosmology, Vol. 86, Issue 3; ISSN 1550-7998
• Publisher: American Physical Society (APS)
• Country of Publication: United States
• Language: English

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