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arXiv · 2201.01851

Search for the decay $B_s^0 \to \eta^\prime K_S^0$

Belle Collaboration·T. Pang·V. Savinov·I. Adachi·H. Aihara·D. M. Asner·H. Atmacan·V. Aulchenko·T. Aushev·R. Ayad·V. Babu·P. Behera·K. Belous·M. Bessner·V. Bhardwaj·B. Bhuyan·T. Bilka·A. Bobrov·D. Bodrov·G. Bonvicini·J. Borah·A. Bozek·M. Br ačko·P. Branchini·T. E. Browder·A. Budano·M. Campajola·D. Červenkov·P. Chang·A. Chen·B. G. Cheon·K. Chi likin·H. E. Cho·K. Cho·S. -J. Cho·S. -K. Choi·Y. Choi·S. Choudhury·D. Cinabro·S. Cunliffe·S. Das·G. De Pietro·R . Dhamija·F. Di Capua·J. Dingfelder·Z. Doležal·T. V. Dong·D. Dossett·S. Dubey·D. Epifanov·T. Ferber·A. Frey·B. G. Fulsom·R. Garg·V. Gaur·N. Gabyshev·A. Giri·P. Goldenzweig·E. Graziani·T. Gu·K. Gudkova·C. Hadjivasiliou·S. Halder·K. Hayasaka·H. Hayashii·M. T. Hedges·C. -L. Hsu·T. Iijima·K. Inami·G. Inguglia·A. Ishikawa·R. Itoh·M. Iwasaki·Y. Iwasaki·W. W. Jacobs·E. -J. Jang·S. Jia·Y. Jin·K. K. Joo·J. Kahn·D. Kalita·A. B. Kaliyar·K. H. Ka ng·G. Karyan·T. Kawasaki·C. Kiesling·C. H. Kim·D. Y. Kim·K. -H. Kim·Y. -K. Kim·K. Kinoshita·P. Kodyš·T. Konn o·A. Korobov·S. Korpar·E. Kovalenko·P. Križan·R. Kroeger·P. Krokovny·T. Kuhr
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Abstract

We report the results of the first search for the decay $B_s^0 \to \eta^\prime K_S^0$ using $121.4\,{\rm fb}^{-1}$ of data collected at the $\Upsilon(5S)$ resonance with the Belle detector at the KEKB asymmetric-energy $e^+ e^-$ collider. We observe no signal and set a 90\% confidence-level upper limit of $8.16 \times 10^{-6}$ on the $B_s^0 \to \eta^\prime K_S^0$ branching fraction.

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Belle Collaboration, T. Pang, V. Savinov, I. Adachi, H. Aihara, D. M. Asner, H. Atmacan, V. Aulchenko, T. Aushev, R. Ayad, V. Babu, P. Behera, K. Belous, M. Bessner, V. Bhardwaj, B. Bhuyan, T. Bilka, A. Bobrov, D. Bodrov, G. Bonvicini, J. Borah, A. Bozek, M. Br ačko, P. Branchini, T. E. Browder, A. Budano, M. Campajola, D. Červenkov, P. Chang, A. Chen, B. G. Cheon, K. Chi likin, H. E. Cho, K. Cho, S. -J. Cho, S. -K. Choi, Y. Choi, S. Choudhury, D. Cinabro, S. Cunliffe, S. Das, G. De Pietro, R . Dhamija, F. Di Capua, J. Dingfelder, Z. Doležal, T. V. Dong, D. Dossett, S. Dubey, D. Epifanov, T. Ferber, A. Frey, B. G. Fulsom, R. Garg, V. Gaur, N. Gabyshev, A. Giri, P. Goldenzweig, E. Graziani, T. Gu, K. Gudkova, C. Hadjivasiliou, S. Halder, K. Hayasaka, H. Hayashii, M. T. Hedges, C. -L. Hsu, T. Iijima, K. Inami, G. Inguglia, A. Ishikawa, R. Itoh, M. Iwasaki, Y. Iwasaki, W. W. Jacobs, E. -J. Jang, S. Jia, Y. Jin, K. K. Joo, J. Kahn, D. Kalita, A. B. Kaliyar, K. H. Ka ng, G. Karyan, T. Kawasaki, C. Kiesling, C. H. Kim, D. Y. Kim, K. -H. Kim, Y. -K. Kim, K. Kinoshita, P. Kodyš, T. Konn o, A. Korobov, S. Korpar, E. Kovalenko, P. Križan, R. Kroeger, P. Krokovny, T. Kuhr. 2022-01-05. Search for the decay $B_s^0 \to \eta^\prime K_S^0$. https://arxiv.org/abs/2201.01851

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