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Branching ratios and CP asymmetries of B → χ c 1 K ( π ) decays

The European physical journal. C, Particles and fields, 2018-06, Vol.78 (6), p.1-8 [Peer Reviewed Journal]

The European Physical Journal C is a copyright of Springer, (2018). All Rights Reserved. © 2018. This work is published under http://creativecommons.org/licenses/by/4.0 (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. ;ISSN: 1434-6044 ;EISSN: 1434-6052 ;DOI: 10.1140/epjc/s10052-018-5958-y

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  • Title:
    Branching ratios and CP asymmetries of B → χ c 1 K ( π ) decays
  • Author: Zhou, Rui ; Zhao, Qiang ; Li-li, Zhang
  • Subjects: Asymmetry ; Decay ; Economic models
  • Is Part Of: The European physical journal. C, Particles and fields, 2018-06, Vol.78 (6), p.1-8
  • Description: 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.
  • Publisher: Heidelberg: Springer Nature B.V
  • Language: English
  • Identifier: ISSN: 1434-6044
    EISSN: 1434-6052
    DOI: 10.1140/epjc/s10052-018-5958-y
  • Source: Springer OA刊
    ProQuest Central
    DOAJ Directory of Open Access Journals
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