Measurement of differential distributions of BD*ν¯ and implications on |Vcb|

Autor: Prim, M. T., Bernlochner, F., Metzner, F., Lieret, K., Kuhr, T., Adachi, I., Aihara, H., Said, S. Al, Asner, D. M., Atmacan, H., Aulchenko, V., Aushev, T., Ayad, R., Babu, V., Bahinipati, S., Banerjee, Sw., Bauer, M., Behera, P., Bennett, J., Bessner, M., Bhardwaj, V., Bhuyan, B., Bilka, T., Biswas, D., Bodrov, D., Borah, J., Bozek, A., Bračko, M., Branchini, P., Browder, T. E., Budano, A., Campajola, M., Cao, L., Červenkov, D., Chang, M.C., Chekelian, V., Cheon, B. G., Chilikin, K., Cho, H. E., Cho, K., Choi, Y., Choudhury, S., Cinabro, D., Das, S., Dash, N., de Marino, G., De Nardo, G., De Pietro, G., Dhamija, R., Di Capua, F., Dingfelder, J., Doležal, Z., Dong, T. V., Epifanov, D., Ferber, T., Ferlewicz, D., Frey, A., Fulsom, B. G., Gaur, V., Garmash, A., Giri, A., Goldenzweig, P., Graziani, E., Gu, T., Gudkova, K., Hadjivasiliou, C., Halder, S., Hara, T., Hayasaka, K., Hayashii, H., Hedges, M. T., Herrmann, D., Hernández Villanueva, M., Hsu, C.L., Iijima, T., Inami, K., Inguglia, G., Ipsita, N., Ishikawa, A., Itoh, R., Iwasaki, M., Jacobs, W. W., Jang, E.J., Jia, S., Jin, Y., Joo, K. K., Kaliyar, A. B., Kang, K. H., Kawasaki, T., Kiesling, C., Kim, C. H., Kim, D. Y., Kim, K.H., Kim, Y.K., Kinoshita, K., Kodyš, P., Konno, T., Korobov, A., Korpar, S., Kovalenko, E., Križan, P., Krokovny, P., Kumar, M., Kumar, R., Kumara, K., Kuzmin, A., Kwon, Y.J., Lalwani, K., Lange, J. S., Laurenza, M., Lee, S. C., Lewis, P., Li, J., Li, L. K., Li, Y., Libby, J., Lin, Y.R., Liventsev, D., Luo, T., Masuda, M., Matsuda, T., Matvienko, D., Maurya, S. K., Meier, F., Merola, M., Miyabayashi, K., Mizuk, R., Mohanty, G. B., Nakamura, I., Nakao, M., Natkaniec, Z., Natochii, A., Nayak, L., Nisar, N. K., Nishida, S., Ogawa, K., Ogawa, S., Ono, H., Oskin, P., Pakhlov, P., Pakhlova, G., Pang, T., Pardi, S., Park, H., Park, J., Park, S.H., Passeri, A., Paul, S., Pedlar, T. K., Pestotnik, R., Piilonen, L. E., Podobnik, T., Prencipe, E., Rabusov, A., Röhrken, M., Rostomyan, A., Rout, N., Russo, G., Sandilya, S., Sangal, A., Santelj, L., Savinov, V., Schnell, G., Schwanda, C., Schwartz, A. J., Seino, Y., Senyo, K., Sevior, M. E., Shan, W., Shapkin, M., Sharma, C., Shiu, J.G., Shwartz, B., Simon, F., Soffer, A., Sokolov, A., Solovieva, E., Starič, M., Sumihama, M., Sumiyoshi, T., Takizawa, M., Tamponi, U., Tanida, K., Tenchini, F., Trabelsi, K., Uglov, T., Unno, Y., Uno, S., Urquijo, P., Usov, Y., Vahsen, S. E., van Tonder, R., Varner, G., Varvell, K. E., Vinokurova, A., Vossen, A., Waheed, E., Wang, D., Wang, M.Z., Watanabe, M., Watanuki, S., Won, E., Yabsley, B. D., Yan, W., Yang, S. B., Yelton, J., Yook, Y., Yuan, C. Z., Yuan, L., Yusa, Y., Zhai, Y., Zhang, Z. P., Zhilich, V., Zhukova, V.
Jazyk: angličtina
Rok vydání: 2023
Zdroj: Physical Review
Popis: We present a measurement of the differential shapes of exclusive B→D*ℓν¯ℓ (B=B−,B¯0 and ℓ=e, μ) decays with hadronic tag-side reconstruction for the full 711 fb−1 Belle dataset. We extract the Caprini-Lellouch-Neubert (CLN) and Boyd-Grinstein-Lebed (BGL) form factor parameters and use an external input for the absolute branching fractions to determine the Cabibbo-Kobayashi-Maskawa matrix element and find |Vcb|CLN=(40.2±0.9)×10−3 and |Vcb|BGL=(40.7±1.0)×10−3 with the zero-recoil lattice QCD point F(1)=0.906±0.013. We also perform a study of the impact of beyond zero-recoil lattice QCD calculations on the |Vcb| determinations. Additionally, we present the lepton-flavor universality ratio Reμ=B(B→D*eν¯e)/B(B→D*μν¯μ)=0.993±0.023±0.023, the electron and muon forward-backward asymmetry and their difference ΔAFB=0.028±0.028±0.008, and the electron and muon D* longitudinal polarization fraction and their difference ΔFLD*=0.030±0.025±0.007. The uncertainties quoted correspond to the statistical and systematic uncertainties, respectively.
Databáze: OpenAIRE