Search for $B^{0} \to \tau^\pm \ell^\mp$ ($\ell=e,\mu$ ) with a hadronic tagging method at Belle

+tau%2B+electron%22&type=SU">B0 --> tau+ electron, BELLE, annihilation [electron positron], B0 --> tau+ muon, decay modes [B], pair production [B], High Energy Physics - Experiment, KEK-B, rare decay [B0], particle identification [tau], muon, colliding beams [electron positron], High Energy Physics::Experiment, ddc:530, B0 --> tau- positron, branching ratio: upper limit [B0], experimental results, B0 --> tau- muon+ -->
Popis: Physical review / D 104(9), L091105 (2021). doi:10.1103/PhysRevD.104.L091105
We present a search for the lepton-flavor-violating decays $B^{0} \to \tau^\pm \ell^\mp$, where $\ell=(e,\,\mu)$, using the full data sample of $772 \times 10^6$ $B \overline{B}$ pairs recorded by the Belle detector at the KEKB asymmetric-energy $e^+e^-$ collider. We use events in which one $B$ meson is fully reconstructed in a hadronic decay mode. The $\tau^\pm$ lepton is reconstructed indirectly using the momentum of the reconstructed $B$ and that of the $\ell^\mp$ from the signal decay. We find no evidence for $B^{0} \to \tau^\pm \ell^\mp$ decays and set upper limits on their branching fractions at 90% confidence level of $\cal B$($B^{0} \to \tau^\pm \mu^{\mp}$)$ < 1.5 \times 10^{-5}$ and $\cal B$($B^{0} \to \tau^\pm e^{\mp}$)$ < 1.6 \times 10^{-5}$.
Published by American Physical Society, Melville, NY
Jazyk: English
DOI: 10.3204/pubdb-2021-04701
DOI: 10.1103/PhysRevD.104.L091105
DOI: 10.3204/PUBDB-2021-04701
Přístupová URL adresa: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::546e586856991f232669ff98cc0ddc0f
Rights: OPEN
Přírůstkové číslo: edsair.doi.dedup.....546e586856991f232669ff98cc0ddc0f
Autor: Atmacan, H., Schwartz, A. J., Ayad, R., Konno, T., Korobov, A., Korpar, S., Kovalenko, E., Križan, P., Kroeger, R., Krokovny, P., Kuhr, T., Kulasiri, R., Kumara, K., Babu, V., Kwon, Y.-J., Lai, Y.-T., Lange, J. S., Laurenza, M., Lee, S. C., Li, J., Li, L. K., Li, Y. B., Gioi, L. Li, Libby, J., Bahinipati, S., Lieret, K., Liventsev, D., MacQueen, C., Masuda, M., Matsuda, T., Matvienko, D., Merola, M., Metzner, F., Miyabayashi, K., Mizuk, R., Bauer, M., Mohanty, G. B., Mussa, R., Nakao, M., Natkaniec, Z., Natochii, A., Nayak, L., Nayak, M., Niiyama, M., Nisar, N. K., Nishida, S., Behera, P., Ogawa, S., Ono, H., Onuki, Y., Oskin, P., Pakhlov, P., Pakhlova, G., Pardi, S., Park, H., Park, S.-H., Passeri, A., Belous, K., Paul, S., Pedlar, T. K., Pestotnik, R., Piilonen, L. E., Podobnik, T., Prencipe, E., Prim, M. T., Ripp-Baudot, I., Rostomyan, A., Rout, N., Bennett, J., Russo, G., Sahoo, D., Sandilya, S., Sangal, A., Santelj, L., Sanuki, T., Savinov, V., Schnell, G., Schueler, J., Schwanda, C., Bernlochner, F., Seino, Y., Senyo, K., Sevior, M. E., Shapkin, M., Sharma, C., Shen, C. P., Shiu, J.-G., Simon, F., Sokolov, A., Solovieva, E., Bessner, M., Starič, M., Stottler, Z. S., Sumihama, M., Sumisawa, K., Sumiyoshi, T., Sutcliffe, W., Tamponi, U., Tanida, K., Tao, Y., Tenchini, Francesco, Bhardwaj, V., Trabelsi, K., Uchida, M., Uglov, T., Unno, Y., Uno, K., Uno, S., Urquijo, P., Vahsen, S. E., Van Tonder, R., Varner, G., Kinoshita, K., Bhuyan, B., Varvell, K. E., Vinokurova, A., Waheed, E., Wang, C. H., Wang, E., Wang, M.-Z., Wang, P., Wang, X. L., Watanabe, M., Watanuki, S., Bilka, T., Wiechczynski, J., Won, E., Yabsley, B. D., Yan, W., Yang, S. B., Ye, H., Yelton, J., Yin, J. H., Zhang, Z. P., Zhilich, V., Biswal, J., Zhukova, V., Belle Collaboration, Bobrov, A., Bozek, A., Bračko, M., Branchini, P., Browder, T. E., Budano, A., Campajola, M., Adachi, I., Cao, L., Červenkov, D., Chang, M.-C., Chang, P., Chekelian, V., Chen, A., Cheon, B. G., Chilikin, K., Cho, H. E., Cho, K., Adamczyk, K., Choi, S.-K., Choi, Y., Choudhury, S., Cinabro, D., Cunliffe, S., Das, S., Dash, N., De Nardo, G., De Pietro, G., Dhamija, R., Aihara, H., Di Capua, F., Dingfelder, J., Doležal, Z., Dong, T. V., Dubey, S., Epifanov, D., Ferber, T., Ferlewicz, D., Frey, A., Fulsom, B. G., Said, S. Al, Garg, R., Gaur, V., Gabyshev, N., Garmash, A., Giri, A., Goldenzweig, P., Graziani, E., Greenwald, D., Gu, T., Guan, Y., Asner, D. M., Gudkova, K., Hadjivasiliou, C., Halder, S., Hara, T., Hartbrich, O., Hayasaka, K., Hayashii, H., Hou, W.-S., Hsu, C.-L., Inami, K., Aulchenko, V., Inguglia, G., Ishikawa, A., Itoh, R., Iwasaki, M., Iwasaki, Y., Jacobs, W. W., Jia, S., Jin, Y., Joo, K. K., Kaliyar, A. B., Aushev, T., Kang, K. H., Kato, Y., Kawasaki, T., Kiesling, C., Kim, C. H., Kim, D. Y., Kim, K.-H., Kim, S. H., Kim, Y.-K., Kodyš, P.
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Physical review / D 104(9), L091105 (2021). doi:10.1103/PhysRevD.104.L091105
DOI: 10.3204/pubdb-2021-04701
Popis: Physical review / D 104(9), L091105 (2021). doi:10.1103/PhysRevD.104.L091105
We present a search for the lepton-flavor-violating decays $B^{0} \to \tau^\pm \ell^\mp$, where $\ell=(e,\,\mu)$, using the full data sample of $772 \times 10^6$ $B \overline{B}$ pairs recorded by the Belle detector at the KEKB asymmetric-energy $e^+e^-$ collider. We use events in which one $B$ meson is fully reconstructed in a hadronic decay mode. The $\tau^\pm$ lepton is reconstructed indirectly using the momentum of the reconstructed $B$ and that of the $\ell^\mp$ from the signal decay. We find no evidence for $B^{0} \to \tau^\pm \ell^\mp$ decays and set upper limits on their branching fractions at 90% confidence level of $\cal B$($B^{0} \to \tau^\pm \mu^{\mp}$)$ < 1.5 \times 10^{-5}$ and $\cal B$($B^{0} \to \tau^\pm e^{\mp}$)$ < 1.6 \times 10^{-5}$.
Published by American Physical Society, Melville, NY
Databáze: OpenAIRE