5958 1802.09010v1 10.1140/epjc/s10052-018-5958-y 463 32 Branching ratios and CP asymmetries of B→χc1K(π) decays Regular Article - Theoretical Physics 1 8 2018 6 2 2018 3 5 2018 5 31 2018 6 7 Training Foundation of North China University of Science and Technology GP201520 JP201512 Program for the Top Young Innovative Talents of Higher Learning Institutions of Hebei Educational Committee BJ2016041 National Natural Science Foundation of China 11547020 11605060 The Author(s) 2018 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. Funded by SCOAP3 Zhou Rui jindui1127@126.com Qiang Zhao Li-li Zhang 0000 0001 0707 0296 grid.440734.0 College of Sciences North China University of Science and Technology Tangshan 063009 China 0000 0001 0707 0296 grid.440734.0 Center for Publishing North China University of Science and Technology Tangshan 063009 China Abstract We investigate the exclusive nonleptonic decays B→χc1K(π) in the conventional perturbative QCD (PQCD) formalism. The predictions of branching ratios and CP asymmetries are given in detail. We compare our results with available experimental data as well as predictions of other theoretical studies existing in the literature. It seems that the branching ratios of B→χc1K are more consistent with data than the earlier analyses. For the Cabibbo-suppressed Bs decays, the branching ratios can reach the order of 10-5, which would be straight forward for experimental observations. The numerical results show that the direct CP asymmetries of the concerned decays are rather small. The mixing-induced CP asymmetry in the B0→χc1KS is very close to sin2β, which suggests that this channel offer an alternative method for measuring the Cabbibo–Kobayashi–Maskawa (CKM) angle β. The obtained results in the present work could be tested by further experiments in the LHCb and forthcoming Belle II.