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Search for B0 decays to invisible final states (+γ) at Belle
Date Issued
01-07-2020
Author(s)
Ku, Y.
Chang, P.
Adachi, I.
Adamczyk, K.
Aihara, H.
Asner, D. M.
Aushev, T.
Ayad, R.
Behera, P.
Beleño, C.
Bennett, J.
Bhardwaj, V.
Bilka, T.
Biswal, J.
Bonvicini, G.
Bozek, A.
BraÄ ko, M.
Chang, M. C.
Chekelian, V.
Chilikin, K.
Cho, K.
Choi, S. K.
Choi, Y.
Cinabro, D.
Cunliffe, S.
Dash, N.
De Nardo, G.
Dong, T. V.
Eidelman, S.
Epifanov, D.
Fast, J. E.
Fulsom, B. G.
Garg, R.
Gaur, V.
Gabyshev, N.
Garmash, A.
Goldenzweig, P.
Grzymkowska, O.
Guan, Y.
Hartbrich, O.
Hayasaka, K.
Hayashii, H.
Hernandez Villanueva, M.
Higuchi, T.
Hou, W. S.
Hsu, C. L.
Huang, K.
Inami, K.
Inguglia, G.
Ishikawa, A.
Itoh, R.
Iwasaki, M.
Iwasaki, Y.
Jia, S.
Jin, Y.
Kang, K. H.
Kawasaki, T.
Kichimi, H.
Kiesling, C.
Kim, C. H.
Kim, D. Y.
Kimmel, T. D.
Kinoshita, K.
Kodyš, P.
Korpar, S.
KriŽan, P.
Kroeger, R.
Krokovny, P.
Kuhr, T.
Kulasiri, R.
Kumar, R.
Kwon, Y. J.
Lai, Y. T.
Li, Y. B.
Li Gioi, L.
Indian Institute of Technology, Madras
Lieret, K.
MacQueen, C.
Matvienko, D.
Merola, M.
Mizuk, R.
Mohanty, G. B.
Moon, T. J.
Mori, T.
Mussa, R.
Natkaniec, Z.
Nayak, M.
Nisar, N. K.
Nishida, S.
Nishimura, K.
Ogawa, K.
Ogawa, S.
Ono, H.
Oskin, P.
Pakhlov, P.
Pakhlova, G.
Park, H.
Park, S. H.
Patra, S.
Pedlar, T. K.
Abstract
We report searches for B0→invisible and B0→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 fb-1 data sample that contains 772×106BB¯ 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 B(B0→invisible)<7.8×10-5 and B(B0→invisible+γ)<1.6×10-5.
Volume
102