Search for B 0 decays to invisible final states ( + γ ) at Belle

Search for B 0 decays to invisible final states ( + γ ) at Belle

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...

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Veröffentlicht in:Physical review. D 2020-07, Vol.102 (1), Article 012003
Hauptverfasser: 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., 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., Libby, J., 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.
Format: Artikel
Sprache:eng
Schlagworte:
High Energy Physics - Experiment
INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
Invisible decays
Particle dark matter
Physics
Supersymmetric models
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Beschreibung
Zusammenfassung: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)
ISSN:2470-0010
2470-0029
DOI:10.1103/PhysRevD.102.012003