1. Search for D0 decays to invisible final states at Belle
- Author
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Lai, Y. -T., Wang, M. -Z., Adachi, I., Aihara, H., Al Said, S., Asner, D. M., Aushev, T., Ayad, R., Badhrees, I., Bakich, A. M., Bansal, V., Barberio, E., Berger, M., Bhardwaj, V., Bhuyan, B., Biswal, J., Bobrov, A., Bozek, A., Bracko, M., Cervenkov, D., Chang, P., Chen, A., Cheon, B. G., Chilikin, K., Chistov, R., Cho, K., Chobanova, V., Choi, Y., Cinabro, D., Dash, N., Di Carlo, S., Dolezal, Z., Dutta, D., Eidelman, S., Epifanov, D., Farhat, H., Fast, J. E., Ferber, T., Fulsom, B. G., Gaur, V., Gabyshev, N., Garmash, A., Gillard, R., Goldenzweig, P., Golob, B., Hayasaka, K., Hou, W. -S., Hsu, C. -L., Iijima, T., Inami, K., Inguglia, G., Ishikawa, A., Itoh, R., Iwasaki, Y., Jacobs, W. W., Jaegle, I., Jeon, H. B., Joffe, D., Joo, K. K., Julius, T., Kang, K. H., Kawasaki, T., Kim, D. Y., Kim, J. B., Kim, K. T., Kim, M. J., Kim, S. H., Kim, Y. J., Kinoshita, K., Kodys, P., Kotchetkov, D., Krokovny, P., Kuhr, T., Kulasiri, R., Kwon, Y. -J., Lange, J. S., Lee, I. S., Li, C. H., Li, L., Li, Y., Gioi, L. Li, Libby, J., Liventsev, D., Masuda, M., Matsuda, T., Matvienko, D., Miyabayashi, K., Miyata, H., Mizuk, R., Mohanty, G. B., Mohanty, S., Nakano, E., Nakao, M., Nakazawa, H., Nanut, T., Nath, K. J., Natkaniec, Z., Nayak, M., Nishida, S., Ogawa, S., Okuno, S., Pakhlov, P., Pal, B., Park, H., Paul, S., Pedlar, T. K., Piilonen, L. E., Pulvermacher, C., Rauch, J., Ritter, M., Sahoo, H., Sakai, Y., Sandilya, S., Sato, Y., Savinov, V., Schlueter, T., Schneider, O., Schnell, G., Schwanda, C., Schwartz, A. J., Seino, Y., Semmler, D., Senyo, K., Seong, I. S., Shebalin, V., Shen, C. P., Shibata, T. -A., Shiu, J. -G., Simon, F., Solovieva, E., Staric, M., Stypula, J., Sumiyoshi, T., Takizawa, M., Tamponi, U., Tenchini, F., Trabelsi, K., Uchida, M., Uehara, S., Uglov, T., Unno, Y., Uno, S., Urquijo, P., Usov, Y., Van Hulse, C., Varner, G., Varvell, K. E., Vorobyev, V., Wang, C. H., Watanabe, M., Watanabe, Y., Widmann, E., Won, E., Yamashita, Y., Ye, H., Yook, Y., Yuan, C. Z., Yusa, Y., Zhang, Z. P., Zhilich, V., Zhulanov, V., Zupanc, A., and Belle Collaboration
- Subjects
Particle physics ,branching ratio: upper limit [D0] ,charmed particle ,FOS: Physical sciences ,BELLE ,annihilation [electron positron] ,Upsilon(10870) ,01 natural sciences ,High Energy Physics - Experiment ,law.invention ,High Energy Physics - Experiment (hep-ex) ,KEK-B ,KEKB ,law ,0103 physical sciences ,ddc:530 ,Limit (mathematics) ,010306 general physics ,Collider ,invisible decay [D0] ,Particle system ,Physics ,010308 nuclear & particles physics ,Branching fraction ,pair production [D0] ,Detector ,Upsilon(10570) ,electroproduction [Upsilon(10870)] ,particle identification [charmed particle] ,electroproduction [Upsilon(10570)] ,colliding beams [electron positron] ,High Energy Physics::Experiment ,branching ratio ,experimental results - Abstract
We report the result from the first search for $D^0$ decays to invisible final states. The analysis is performed on a data sample of 924 $\rm{fb}^{-1}$ collected at and near the $\Upsilon(4S)$ and $\Upsilon(5S)$ resonances with the Belle detector at the KEKB asymmetric-energy $e^{+}e^{-}$ collider. The absolute branching fraction is determined using an inclusive $D^0$ sample, obtained by fully reconstructing the rest of the particle system including the other charmed particle. No significant signal yield is observed and an upper limit of $9.4\times 10^{-5}$ is set on the branching fraction of $D^0$ to invisible final states at 90\% confidence level., Comment: 17 pages, 4 figures, submitted to PRD(RC)
- Published
- 2017
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