Study of CP violation in B0→ DK⋆(892)0 decays with D → Kπ(ππ), ππ(ππ), and KK final states

• Published in: The journal of high energy physics 2024-05, Vol.2024 (5), p.25, Article 25
• Main Authors: Albicocco, P., Alfonso Albero, A., Amey, J. L., Amhis, Y., Andersson, M., Bachmayer, M., Biolchini, A., Bohare, A., Cai, H., Calabrese, R., Cambon Bouzas, J., Carbone, A., Cesare, S., Chen, S., Clemencic, M., Closier, J., Cooke, N., Cottee Meldrum, J. J., De Serio, M., Decamp, D., Deschamps, O., Donohoe, A. M., Duda, P., Egorychev, V., Eirea Orro, C., Fernandez Gomez, M., Ferro-Luzzi, M., Frank, M., Franzoso, E., Galati, G., Gao, H., Gao, Y., Gershon, T., Göbel, C., Graugés, E., Grazette, L., Guittiere, M., Haimberger, J., Hajheidari, M., Halvorsen, M. M., Hartmann, M., Herd, J., Hu, J., Hutchcroft, D., Joshi, S., Karpov, M., Kauniskangas, A. M., Kotriakhova, S., Kubat, J., Kudryavtsev, V., Li, A., Li, L., Li, P., Liu, Y. L., Lobo Salvia, A., Lucchesi, D., Ma, G. M., Machefert, F., Madhan Mohan, L. R., Madurai, M. M., Marconi, U., Mauricio, J., Mazurek, M., Mitchell, S. E., Modak, A., Papanestis, A., Passalacqua, B., Passaleva, G., Patrignani, C., Perret, P., Petridis, K., Petrucci, S., Pfaller, J. P., Polci, F., Ruf, T., Saputi, A., Saur, M., Schmelling, M., Schmidt, B., Schneider, O., Sestini, L., Souza De Paula, B., Speer, J. G., Spiridenkov, E., Stevens, H., Suljik, F., Swallow, P. N., Szumlak, T., Szymanski, M., Uecker, L. H., Ustyuzhanin, A., Van Hecke, H., Vázquez Sierra, C., Vrahas, C., Walsh, J., Websdale, D., Wiedner, D., Wilkinson, G., Xu, Z., Zou, Q.
• Format: Article
• Language: English
• Subjects: Classical and Quantum Gravitation; Collaboration; CP violation; Elementary Particles; Interference; Large Hadron Collider; Luminosity; Parameters; Physics; Physics and Astronomy; Quantum Field Theories; Quantum Field Theory; Quantum Physics; Quarks; Regular Article - Experimental Physics; Relativity Theory; Sensors; String Theory
• ISSN: 1029-8479; 1029-8479
• DOI: 10.1007/JHEP05(2024)025

A bstract A measurement of CP -violating observables associated with the interference of B 0 → D 0 K ⋆ (892) 0 and B 0 → D ¯ 0 K ⋆ 892 0 decay amplitudes is performed in the D 0 → K ∓ π ± ( π + π − ), D 0 → π + π − ( π + π − ), and D 0 → K + K − final states using data collected by the LHCb experiment corresponding to an integrated luminosity of 9 fb − 1 . CP -violating observables related to the interference of B s 0 → D 0 K ¯ ⋆ 892 0 and B s 0 → D ¯ 0 K ¯ ⋆ 892 0 are also measured, but no evidence for interference is found. The B 0 observables are used to constrain the parameter space of the CKM angle γ and the hadronic parameters r B 0 DK ⋆ and δ B 0 DK ⋆ with inputs from other measurements. In a combined analysis, these measurements allow for four solutions in the parameter space, only one of which is consistent with the world average.