Test of Lepton-Flavor Universality in B→K∗ℓ+ℓ− Decays at Belle

We present a measurement of R_{K^{*}}, the branching fraction ratio B(B→K^{*}μ^{+}μ^{-})/B(B→K^{*}e^{+}e^{-}), for both charged and neutral B mesons. The ratio for the charged case R_{K^{*+}} is the first measurement ever performed. In addition, we report absolute branching fractions for the individ...

Full description

Bibliographic Details

Published in:	Physical review letters Vol. 126; no. 16; p. 161801
Main Authors:	Wehle, S., Adachi, I., Adamczyk, K., Aihara, H., Asner, D. M., Atmacan, H., Aulchenko, V., Aushev, T., Ayad, R., Babu, V., Behera, P., Berger, M., Bhardwaj, V., Biswal, J., Bozek, A., Bračko, M., Browder, T. E., Campajola, M., Cao, L., Chang, M.-C., Chen, A., Cheon, B. G., Chilikin, K., Cho, K., Choi, Y., Choudhury, S., Cinabro, D., Cunliffe, S., Dash, N., De Nardo, G., Di Capua, F., Dubey, S., Eidelman, S., Epifanov, D., Ferber, T., Fulsom, B. G., Garg, R., Gaur, V., Gabyshev, N., Garmash, A., Giri, A., Goldenzweig, P., Greenwald, D., Guan, Y., Haba, J., Hartbrich, O., Hayasaka, K., Hayashii, H., Hedges, M. T., Higuchi, T., Hou, W.-S., Hsu, C.-L., Iijima, T., Inami, K., Inguglia, G., Ishikawa, A., Itoh, R., Iwasaki, M., Iwasaki, Y., Jacobs, W. W., Jia, S., Jin, Y., Joffe, D., Kahn, J., Kaliyar, A. B., Karyan, G., Kichimi, H., Kim, D. Y., Kim, K. T., Kim, S. H., Kim, Y.-K., Kinoshita, K., Komarov, I., Korpar, S., Kotchetkov, D., Kroeger, R., Krokovny, P., Kuhr, T., Kulasiri, R., Kumar, R., Kumara, K., Kuzmin, A., Kwon, Y.-J., Lange, J. S., Lee, J. Y., Lee, S. C., Li, Y. B., Libby, J., Liptak, Z., Liventsev, D., Luo, T., MacNaughton, J., Masuda, M., Matsuda, T., McNeil, J. T., Merola, M., Metzner, F., Miyata, H., Mizuk, R., Mohanty, G. B.
Format:	Journal Article
Language:	English
Published:	United States American Physical Society 23.04.2021
Subjects:	Flavor (particle physics) Leptons Mesons Standard model (particle physics)
ISSN:	0031-9007, 1079-7114, 1079-7114
Online Access:	Get full text
Tags:	Add Tag No Tags, Be the first to tag this record!