Search for B0 decays to invisible final states (+γ) at Belle

Authors

Y. Ku, National Taiwan University
P. Chang, National Taiwan University
I. Adachi, The Graduate University for Advanced Studies
K. Adamczyk, Henryk Niewodniczanski Institute of Nuclear Physics of the Polish Academy of Sciences
H. Aihara, The University of Tokyo
D. M. Asner, Brookhaven National Laboratory
T. Aushev, National Research University Higher School of Economics
R. Ayad, University of Tabuk
P. Behera, Indian Institute of Technology Madras
C. Beleño, Universität Göttingen
J. Bennett, University of Mississippi
V. Bhardwaj, Indian Institute of Science Education and Research Mohali
T. Bilka, Charles University
J. Biswal, Jozef Stefan Institute
G. Bonvicini, Wayne State University
A. Bozek, Henryk Niewodniczanski Institute of Nuclear Physics of the Polish Academy of Sciences
M. Bračko, Jozef Stefan Institute
M. C. Chang, Fu Jen Catholic University
V. Chekelian, Max Planck Institute for Physics (Werner Heisenberg Institute)
K. Chilikin, P.N. Lebedev Physical Institute of the Russian Academy of Sciences
K. Cho, Korea Institute of Science and Technology Information
S. K. Choi, Gyeongsang National University
Y. Choi, Sungkyunkwan University
D. Cinabro, Wayne State University
S. Cunliffe, Deutsches Elektronen-Synchrotron (DESY)
N. Dash, Indian Institute of Technology Bhubaneswar
G. De Nardo, Istituto Nazionale di Fisica Nucleare, Sezione di Napoli
T. V. Dong, Fudan University
S. Eidelman, Budker Institute of Nuclear Physics of the Siberian Branch of the RAS
D. Epifanov, Budker Institute of Nuclear Physics of the Siberian Branch of the RAS
J. E. Fast, Pacific Northwest National Laboratory
B. G. Fulsom, Pacific Northwest National Laboratory

Document Type

Article

Publication Date

7-1-2020

Abstract

© 2020 authors. 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.

Relational Format

journal article

Recommended Citation

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., Bračko, M., Chang, M.-C., Chekelian, V., … Belle Collaboration. (2020). Search for B 0 decays to invisible final states ( + γ ) at Belle. Physical Review D, 102(1), 012003. https://doi.org/10.1103/PhysRevD.102.012003