Journal Article

Measurement of CP asymmetries and branching-fraction ratios for B± → DK± and Dπ± with D →$$ {K}_{\\textrm{S}}^0 $$ K±π∓ using Belle and Belle II data

de Sangro, R., Di Canto, A., Chirapatpimol, K., Welsch, M., Gaur, V., Kinoshita, K., Stottler, Z. S., Chilikin, K., Maity, S., Praz, C., Di Capua, F., Gaudino, G., Mirra, M., Uchida, M., Leitl, P., Natkaniec, Z., Gruberová, Z., Xu, X. P., De Pietro, G., Dhamija, R., Kindo, H., Garmash, A., Fillinger, T., Bianchi, F., Li, C., Paul, S., Kumar, M., Jang, E.-J., Kumara, K., Nazaryan, G., Ghevondyan, G., Dreyer, S., Maurya, S. K., Bilka, T., Gobbo, B., Junkerkalefeld, H., Narimani Charan, A., Tiwary, R., Kovalenko, E., Jackson, P., Lyu, C., Dingfelder, J., Higuchi, T., Casarosa, G., Hernández Villanueva, M., Aversano, M., Giordano, R., Kojima, K., Peruzzi, I., Hill, E. C., Pakhlova, G., Paladino, A., Senyo, K., Lewis, P. M., Svidras, H., Prencipe, E., Otani, F., Varner, G. S., Pedlar, T. K., Singh, J. B., Sumisawa, K., Banerjee, Sw, Prell, S., Vitale, L., Marcantonio, D., Shan, W., McKenna, J. A., Bae, H., Biswas, D., Kraetzschmar, T. M. G., Ipsita, N., Le Diberder, F. R., Zhukova, V. I., Pardi, S., Zhou, Q. D., Libby, J., Panta, A., Schwartz, A. J., Maiti, R., Sharma, C., Yusa, Y., Bessner, M., De Nuccio, M., Pham, F., Kandra, J., Kuhr, T., Moser, H.-G., Mrvar

2023

Overview

We measure CP asymmetries and branching-fraction ratios for B ± → DK ± and Dπ ± decays with D →$$ {K}_{\\textrm{S}}^0 $$K S 0 K ± π ∓ , where D is a superposition of D 0 and$$ \\overline{D} $$D ¯ 0 . We use the full data set of the Belle experiment, containing 772 × 10 6$$ B\\overline{B} $$B B ¯ pairs, and data from the Belle II experiment, containing 387 × 10 6$$ B\\overline{B} $$B B ¯ pairs, both collected in electron-positron collisions at the Υ(4 S ) resonance. Our results provide model-independent information on the unitarity triangle angle ϕ 3 .

• Publisher: Springer,Springer Nature
• Subject: Physics