Search for $B^0$ Decays to Invisible Final States ($+γ$) at Belle
Creators: name: Belle Collaboration
name: Ku, Y.
name: Chang, P.
name: Adachi, I.
name: Adamczyk, K.
name: Aihara, H.
name: Asner, D. M.
name: Aushev, T.
name: Ayad, R.
name: Behera, P.
name: {n}o, C. Bele\
name: Bennett, J.
name: Bhardwaj, V.
name: Bilka, T.
name: Biswal, J.
name: Bonvicini, G.
name: Bozek, A.
name: Bračko, M.
name: Chang, M. -C.
name: Chekelian, V.
name: Chilikin, K.
name: Cho, K.
name: Choi, S. -K.
name: Choi, Y.
name: Cinabro, D.
name: Cunliffe, S.
name: Dash, N.
name: De Nardo, G.
name: Dong, T. V.
name: Eidelman, S.
name: Epifanov, D.
name: Fast, J. E.
name: Fulsom, B. G.
name: Garg, R.
name: Gaur, V.
name: Gabyshev, N.
name: Garmash, A.
name: Goldenzweig, P.
name: Grzymkowska, O.
name: Guan, Y.
name: Hartbrich, O.
name: Hayasaka, K.
name: Hayashii, H.
name: Villanueva, M. Hernandez
name: Higuchi, T.
name: Hou, W. -S.
name: Hsu, C. -L.
name: Huang, K.
name: Inami, K.
name: Inguglia, G.
name: Ishikawa, A.
name: Itoh, R.
name: Iwasaki, M.
name: Iwasaki, Y.
name: Jia, S.
name: Jin, Y.
name: Kang, K. H.
name: Kawasaki, T.
name: Kichimi, H.
name: Kiesling, C.
name: Kim, C. H.
name: Kim, D. Y.
name: Kimmel, T. D.
name: Kinoshita, K.
name: Kodyš, P.
name: Korpar, S.
name: Križan, P.
name: Kroeger, R.
name: Krokovny, P.
name: Kuhr, T.
name: Kulasiri, R.
name: Kumar, R.
name: Kwon, Y. -J.
name: Lai, Y. -T.
name: Li, Y. B.
name: Gioi, L. Li
name: Libby, J.
name: Lieret, K.
name: MacQueen, C.
name: Matvienko, D.
name: Merola, M.
name: Mizuk, R.
name: Mohanty, G. B.
name: Moon, T. J.
name: Mori, T.
name: Mussa, R.
name: Natkaniec, Z.
name: Nayak, M.
name: Nisar, N. K.
name: Nishida, S.
name: Nishimura, K.
name: Ogawa, K.
name: Ogawa, S.
name: Ono, H.
name: Oskin, P.
name: Pakhlov, P.
name: Pakhlova, G.
name: Park, H.
name: Park, S. -H.
name: Patra, S.
name: Pedlar, T. K.
name: Pestotnik, R.
name: Piilonen, L. E.
name: Podobnik, T.
name: Popov, V.
name: Prim, M. T.
name: Ritter, M.
name: Röhrken, M.
name: Rostomyan, A.
name: Rout, N.
name: Russo, G.
name: Sakai, Y.
name: Santelj, L.
name: Sanuki, T.
name: Savinov, V.
name: Schnell, G.
name: Schueler, J.
name: Schwanda, C.
name: Schwartz, A. J.
name: Senyo, K.
name: Shapkin, M.
name: Shiu, J. -G.
name: Shwartz, B.
name: Sokolov, A.
name: Solovieva, E.
name: Starič, M.
name: Stottler, Z. S.
name: Sumihama, M.
name: Sumiyoshi, T.
name: Takizawa, M.
name: Tamponi, U.
name: Tanida, K.
name: Tenchini, F.
name: Trabelsi, K.
name: Uchida, M.
name: Uglov, T.
name: Unno, Y.
name: Uno, S.
name: Urquijo, P.
name: Usov, Y.
name: Varner, G.
name: Varvell, K. E.
name: Vinokurova, A.
name: Wang, C. H.
name: Wang, E.
name: Wang, M. -Z.
name: Wang, P.
name: Wang, X. L.
name: Watanabe, M.
name: Won, E.
name: Xu, X.
name: Yang, S. B.
name: Ye, H.
name: Yuan, C. Z.
name: Zhang, Z. P.
name: Zhukova, V.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences
subject: FOS: Physical sciences

description: We report searches for $B^0\to\rm{invisible}$ and $B^0\to\rm{invisible}+γ$ decays, where the energy of the photon is required to be larger than 0.5 GeV. These results are obtained from a $711\,{\rm fb}^{-1}$ data sample that contains $772 \times 10^6 B\bar{B}$ pairs and was collected near the $Υ\,(4S)$ resonance with the Belle detector at the KEKB $e^+ e^-$ collider. We observe no significant signal for either decay and set upper limits on their branching fractions at $90\%$ confidence level of $\mathcal{B}\,(B^0\to\rm{invisible}) &lt; 7.8\times10^{-5}$ and $\mathcal{B}\,(B^0\to\rm{invisible}+γ) &lt; 1.6\times10^{-5}$.
description: submitted to Physical Review D