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arXiv · 2405.11390

Search for Two-Body $B$ Meson Decays to $\Lambda^{0}$ and $\Omega^{(*)0}_{c}$

Belle Collaboration·V. Savinov·I. Adachi·J. K. Ahn·H. Aihara·D. M. Asner·H. Atmacan·R. Ayad·Sw. Banerjee·J. Bennett·M. Bessner·V. Bhardwaj·D. Biswas·A. Bobrov·D. Bodrov·J. Borah·M. Bračko·P. Branchini·T. E. Browder·A. Budano·D. Červenkov·M. -C. Chang·P. Chang·B. G. Cheon·K. Cho·S. -K. Choi·Y. Choi·S. Choudhury·N. Dash·G. De Nardo·G. De Pietro·R. Dhamija·F. Di Capua·J. Dingfelder·Z. Doležal·S. Dubey·P. Ecker·D. Epifanov·D. Ferlewicz·B. G. Fulsom·V. Gaur·A. Giri·P. Goldenzweig·E. Graziani·T. Gu·Y. Guan·K. Gudkova·C. Hadjivasiliou·H. Hayashii·S. Hazra·M. T. Hedges·W. -S. Hou·K. Inami·N. Ipsita·A. Ishikawa·R. Itoh·M. Iwasaki·W. W. Jacobs·Y. Jin·D. Kalita·C. H. Kim·D. Y. Kim·K. -H. Kim·Y. -K. Kim·K. Kinoshita·P. Kodyš·A. Korobov·S. Korpar·E. Kovalenko·P. Križan·P. Krokovny·T. Kuhr·R. Kumar·T. Kumita·A. Kuzmin·Y. -J. Kwon·Y. -T. Lai·T. Lam·J. S. Lange·L. K. Li·Y. Li·Y. B. Li·L. Li Gioi·J. Libby·D. Liventsev·T. Luo·Y. Ma·M. Masuda·T. Matsuda·S. K. Maurya·F. Meier·M. Merola·I. Nakamura·M. Nakao·Z. Natkaniec·L. Nayak·M. Nayak·S. Nishida·S. Ogawa·H. Ono
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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~$\times 10^{-8}$.

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Belle Collaboration, V. Savinov, I. Adachi, J. K. Ahn, H. Aihara, D. M. Asner, H. Atmacan, R. Ayad, Sw. Banerjee, J. Bennett, M. Bessner, V. Bhardwaj, D. Biswas, A. Bobrov, D. Bodrov, J. Borah, M. Bračko, P. Branchini, T. E. Browder, A. Budano, D. Červenkov, M. -C. Chang, P. Chang, B. G. Cheon, K. Cho, S. -K. Choi, Y. Choi, S. Choudhury, N. Dash, G. De Nardo, G. De Pietro, R. Dhamija, F. Di Capua, J. Dingfelder, Z. Doležal, S. Dubey, P. Ecker, D. Epifanov, D. Ferlewicz, B. G. Fulsom, V. Gaur, A. Giri, P. Goldenzweig, E. Graziani, T. Gu, Y. Guan, K. Gudkova, C. Hadjivasiliou, H. Hayashii, S. Hazra, M. T. Hedges, W. -S. Hou, K. Inami, N. Ipsita, A. Ishikawa, R. Itoh, M. Iwasaki, W. W. Jacobs, Y. Jin, D. Kalita, C. H. Kim, D. Y. Kim, K. -H. Kim, Y. -K. Kim, K. Kinoshita, P. Kodyš, A. Korobov, S. Korpar, E. Kovalenko, P. Križan, P. Krokovny, T. Kuhr, R. Kumar, T. Kumita, A. Kuzmin, Y. -J. Kwon, Y. -T. Lai, T. Lam, J. S. Lange, L. K. Li, Y. Li, Y. B. Li, L. Li Gioi, J. Libby, D. Liventsev, T. Luo, Y. Ma, M. Masuda, T. Matsuda, S. K. Maurya, F. Meier, M. Merola, I. Nakamura, M. Nakao, Z. Natkaniec, L. Nayak, M. Nayak, S. Nishida, S. Ogawa, H. Ono. 2024-05-18. Search for Two-Body $B$ Meson Decays to $\Lambda^{0}$ and $\Omega^{(*)0}_{c}$. https://arxiv.org/abs/2405.11390

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