Calculation of Branching Fraction and CP Violation in \(B^-\rightarrow D_s^-D^0\) Decay

Behnam Mohammadi (Department of Physics, Urmia University, Urmia, Iran) ; Elnaz Amirkhanlou (Department of Physics, Urmia University, Urmia, Iran)

The most precise measurement of the CP asymmetry in the \(B^-\rightarrow D_s^-D^0\) decay has been reported by the LHCb Collaboration with the value of \((-0.4\pm 0.5\pm 0.5)\%\). In this study, the CP violation in the \(B^-\rightarrow D_s^-D^0\) decay has been calculated under the factorization approach. This decay mode includes the current–current tree, and penguin diagrams and their amplitudes are considered separately. In each of the tree and penguin amplitudes, the strong and weak phases have been introduced. The CP asymmetry has been calculated in this work to be \((-0.35\pm 0.03)\%\). Finally, from the sum of the amplitudes, we have calculated the total amplitude and obtained comparable results with the experimental value for the branching ratio of \(B^-\rightarrow D_s^-D^0\) decay.

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      "full_name": "Amirkhanlou, Elnaz"
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  "titles": [
    {
      "title": "Calculation of Branching Fraction and CP Violation in \\(B^-\\rightarrow D_s^-D^0\\) Decay"
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  "abstracts": [
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      "value": "The most precise measurement of the CP asymmetry in the \\(B^-\\rightarrow D_s^-D^0\\) decay has been reported by the LHCb Collaboration with the value of \\((-0.4\\pm 0.5\\pm 0.5)\\%\\). In this study, the CP violation in the \\(B^-\\rightarrow D_s^-D^0\\) decay has been calculated under the factorization approach. This decay mode includes the current\u2013current tree, and penguin diagrams and their amplitudes are considered separately. In each of the tree and penguin amplitudes, the strong and weak phases have been introduced. The CP asymmetry has been calculated in this work to be \\((-0.35\\pm 0.03)\\%\\). Finally, from the sum of the amplitudes, we have calculated the total amplitude and obtained comparable results with the experimental value for the branching ratio of \\(B^-\\rightarrow D_s^-D^0\\) decay."
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Published on:
28 October 2022
Publisher:
Jagiellonian University
Published in:
Acta Physica Polonica B , Volume 53 (2022)
Issue 10
Pages A2.1-8
DOI:
https://doi.org/10.5506/APhysPolB.53.10-A2
arXiv:
2210.07676
Copyrights:
The Authors
Licence:
CC-BY-4.0

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