English

Estimated of $CP$ violation in $B^0$ meson decays into $D^{*+}$ and $D^-$ mesons

High Energy Physics - Phenomenology 2023-04-13 v3

Abstract

The decay B0D+DB^0\rightarrow D^{*+}D^- is favorable mode for studying CPCP violation in the interference between mixing and decay for B0B^0 and Bˉ0\bar{B}^0 mesons. The latest analysis of the CPCP parameters has been performed by the LHCb collaboration values of SDD=0.861±0.077±0.019S_{D^*D}=-0.861\pm0.077\pm0.019, CDD=0.059±0.092±0.020C_{D^*D}=-0.059\pm0.092\pm0.020, SDD=0.019±0.075±0.012\triangle S_{D^*D}=0.019\pm0.075\pm0.012, CDD=0.031±0.092±0.016\triangle C_{D^*D}=-0.031\pm0.092\pm0.016, and ADDCP=0.008±0.014±0.006±0.003\mathcal{A}_{D^*D}^{CP}=0.008\pm0.014\pm0.006\pm0.003. We have been estimated the parameters SDDS_{D^*D} and CDDC_{D^*D} of the B0D+DB^0\rightarrow D^{*+}D^- decay as 0.709±0.024-0.709\pm0.024 and 0.051±0.004-0.051\pm0.004. In the following, we have obtained the values of SDD=0.054±0.003\triangle S_{D^*D}=0.054\pm0.003 and CDD=0.020±0.001\triangle C_{D^*D}=0.020\pm0.001 and direct CPCP violation of 0.008±0.0010.008\pm0.001. Also, we have calculated the branching ratio of B0D+DB^0\rightarrow D^{*+}D^- decay. The values obtained in this work are comparable with the corresponding experimental values.

Keywords

Cite

@article{arxiv.2302.07819,
  title  = {Estimated of $CP$ violation in $B^0$ meson decays into $D^{*+}$ and $D^-$ mesons},
  author = {Behnam Mohammadi and Elnaz Amirkhanlou},
  journal= {arXiv preprint arXiv:2302.07819},
  year   = {2023}
}