학술논문

Search for Two-Body $B$ Meson Decays to $\Lambda^{0}$ and $\Omega^{(*)0}_{c}$
Document Type
Working Paper
Author
Belle CollaborationSavinov, V.Adachi, I.Ahn, J. K.Aihara, H.Asner, D. M.Atmacan, H.Ayad, R.Banerjee, Sw.Bennett, J.Bessner, M.Bhardwaj, V.Biswas, D.Bobrov, A.Bodrov, D.Borah, J.Bračko, M.Branchini, P.Browder, T. E.Budano, A.Červenkov, D.Chang, M. -C.Chang, P.Cheon, B. G.Cho, K.Choi, S. -K.Choi, Y.Choudhury, S.Dash, N.De Nardo, G.De Pietro, G.Dhamija, R.Di Capua, F.Dingfelder, J.Doležal, Z.Dubey, S.Ecker, P.Epifanov, D.Ferlewicz, D.Fulsom, B. G.Gaur, V.Giri, A.Goldenzweig, P.Graziani, E.Gu, T.Guan, Y.Gudkova, K.Hadjivasiliou, C.Hayashii, H.Hazra, S.Hedges, M. T.Hou, W. -S.Inami, K.Ipsita, N.Ishikawa, A.Itoh, R.Iwasaki, M.Jacobs, W. W.Jin, Y.Kalita, D.Kim, C. H.Kim, D. Y.Kim, K. -H.Kim, Y. -K.Kinoshita, K.Kodyš, P.Korobov, A.Korpar, S.Kovalenko, E.Križan, P.Krokovny, P.Kuhr, T.Kumar, R.Kumita, T.Kuzmin, A.Kwon, Y. -J.Lai, Y. -T.Lam, T.Lange, J. S.Li, L. K.Li, Y.Li, Y. B.Gioi, L. LiLibby, J.Liventsev, D.Luo, T.Ma, Y.Masuda, M.Matsuda, T.Maurya, S. K.Meier, F.Merola, M.Nakamura, I.Nakao, M.Natkaniec, Z.Nayak, L.Nayak, M.Nishida, S.Ogawa, S.Ono, H.Pakhlov, P.Pakhlova, G.Pardi, S.Park, H.Park, J.Park, S. -H.Passeri, A.Patra, S.Pestotnik, R.Piilonen, L. E.Podobnik, T.Prencipe, E.Prim, M. T.Russo, G.Sandilya, S.Santelj, L.Schnell, G.Schwanda, C.Seino, Y.Senyo, K.Shan, W.Sharma, C.Shiu, J. -G.Solovieva, E.Starič, M.Sumihama, M.Takizawa, M.Tamponi, U.Tanida, K.Tenchini, F.Tiwary, R.Trabelsi, K.Uchida, M.Unno, Y.Uno, S.Varvell, K. E.Wang, E.Watanuki, S.Won, E.Xu, X.Yabsley, B. D.Yan, W.Yin, J. H.Yuan, C. Z.Yuan, L.Yusa, Y.Zhang, Z. P.Zhilich, V.Zhukova, V.
Source
Subject
High Energy Physics - Experiment
Language
Abstract
We report the results of the first search for Standard Model and baryon-number-violating two-body decays of the neutral $B$ mesons to $\Lambda^{0}$ and $\Omega^{(*)0}_c$ using 711~${\rm fb^{-1}}$ of data collected at the $\Upsilon(4S)$ resonance with the Belle detector at the KEKB asymmetric-energy $e^+ e^-$ collider. We observe no evidence of signal from any such decays and set 95\% confidence-level upper limits on the products of $B^0$ and $\bar{B}^0$ branching fractions for these two-body decays with $\mathcal{B}(\Omega_{c}^{0} \to \pi^+ \Omega^-)$ in the range between 9.5~$\times 10^{-8}$ and 31.2~$\times 10^{-8}$.
Comment: 6 pages, 2 figures, submitted to PRD(L)