Dubey, S.Browder, T. E.Aihara, H.Al Said, S.Asner, D. M.Aushev, T.Ayad, R.Babu, V.Bahinipati, S.Behera, P.Bennett, J.Bessner, M.Bhuyan, B.Bilokin, S.Biswal, J.Bobrov, A.Bonvicini, G.Bozek, A.Bracko, M.Campajola, M.Cervenkov, D.Cheon, B. G.Chilikin, K.Cho, H. E.Cho, K.Choi, Y.Choudhury, S.Cinabro, D.Cunliffe, S.Das, S.Dhamija, R.Di Capua, F.Dolezal, Z.Dossett, D.Eidelman, S.Epifanov, D.Ferber, T.Fulsom, B. G.Garg, R.Gaur, V.Gabyshev, N.Garmash, A.Giri, A.Goldenzweig, P.Golob, B.Greenwald, D.Guan, Y.Gudkova, K.Hadjivasiliou, C.Hayasaka, K.Hayashii, H.Hedges, M. T.Hou, W. -S.Hsu, C. -L.Inami, K.Ishikawa, A.Itoh, R.Iwasaki, M.Iwasaki, Y.Jang, E. -J.Jin, Y.Joo, C. W.Joo, K. K.Kaliyar, A. B.Kawasaki, T.Kichimi, H.Kim, C. H.Kim, D. Y.Kim, S. H.Kim, Y. -K.Kimmel, T. D.Kinoshita, K.Korpar, S.Krizan, P.Kroeger, R.Krokovny, P.Kuhr, T.Kulasiri, R.Kumar, R.Kumara, K.Kwon, Y. -J.Lalwani, K.Lange, J. S.Lee, S. C.Li, C. H.Li, J.Li, L. K.Li, Y. B.Li Gioi, L.Libby, J.Liventsev, D.MacQueen, C.Masuda, M.Matsuda, T.Merola, M.Metzner, F.Miyabayashi, K.Mizuk, R.Mohanty, G. B.Mohanty, S.Moon, T. J.Nakao, M.Natochii, A.Nayak, L.Nayak, M.Nisar, N. K.Nishida, S.Nishimura, K.Ogawa, S.Ono, H.Onuki, Y.Oskin, P.Pakhlova, G.Pardi, S.Park, S. -H.Pedlar, T. K.Pestotnik, R.Piilonen, L. E.Podobnik, T.Prencipe, E.Prim, M. T.Rostomyan, A.Rout, N.Russo, G.Sahoo, D.Sakai, Y.Sandilya, S.Sangal, A.Santelj, L.Sanuki, T.Savinov, V.Schnell, G.Schwanda, C.Seino, Y.Senyo, K.Sevior, M. E.Shapkin, M.Sharma, C.Shiu, J. -G.Shwartz, B.Solovieva, E.Staric, M.Stottler, Z. S.Strube, J. F.Sumisawa, K.Takizawa, M.Tamponi, U.Tanida, K.Tao, Y.Tenchini, F.Trabelsi, K.Uchida, M.Unno, Y.Uno, S.Ushiroda, Y.Usov, Y.Vahsen, S. E.Van Tonder, R.Varner, G.Wang, C. H.Wang, E.Wang, P.Watanabe, M.Watanuki, S.Xu, X.Yabsley, B. D.Yan, W.Yang, S. B.Ye, H.Yin, J. H.Zhang, Z. P.Zhilich, V.Zhukova, V.2024-01-222024-01-222021-07-122021-07-122470-0010https://hdl.handle.net/10919/117488We report the first search for the penguin-dominated process Bs0→η′Xss¯ using a semi-inclusive method. A 121.4 fb-1 integrated luminosity ϒ(5S) data set collected by the Belle experiment, at the KEKB asymmetric-energy e+e- collider, is used. We observe no statistically significant signal and, including all uncertainties, we set a 90% confidence level upper limit on the partial branching fraction at 1.4×10-3 for M(Xss¯)≤2.4 GeV/c2.11 page(s)application/pdfenIn CopyrightScience & TechnologyPhysical SciencesAstronomy & AstrophysicsPhysics, Particles & FieldsPhysicsDECAY5107 Particle and High Energy Physics49 Mathematical Sciences51 Physical SciencesArticlehttps://doi.org/10.1103/PhysRevD.104.0120071041Piilonen, Leo [0000-0001-6836-0748]2470-0029