A global analysis of B̅→ DP and B̅ → D̅ P decays

@misc{bhattacharya2026global,
  title = {{A global analysis of $\bar B\to DP$ and $\bar B \to \bar D P$ decays}},
  author = {Bhubanjyoti Bhattacharya and Rida Boumris and David London},
  howpublished = {arXiv},
  year = {2026},
  month = oct,
  doi = {10.48550/arxiv.2610.20611},
  eprint = {2610.20611},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2610.20611},
}

TY  - UNPB
TI  - A global analysis of B̅→ DP and B̅ → D̅ P decays
AU  - Bhubanjyoti Bhattacharya
AU  - Rida Boumris
AU  - David London
PY  - 2026
DA  - 2026/10/14
PB  - arXiv
DO  - 10.48550/arxiv.2610.20611
UR  - https://arxiv.org/abs/2610.20611
AB  - Recently, a fit to the 15 measured branching ratios of B̅ → D P decays (B = {B^+, B^0, B_s^0}, D = {D^0, D^+, D_s^+}, P ∈ {π, K}) was performed under the assumption of flavor SU(3) symmetry [SU(3)_F]. A terrible fit was found: there was a > 5σ disagreement with the SU(3)_F limit of the Standard Model [SM_SU(3)_F]. It was also found that this discrepancy can be removed by adding ∼ 20% SU(3)_F-breaking effects. Now, the B̅ → D^0 P amplitudes can contribute to other observables (direct and indirect CP asymmetries) if they interfere with the amplitudes for B̅ → D̅^0 P decays. This happens if the D^0 and D̅^0 decay to the same final state (e.g., K^+ K^-, π^+ π^-, K^± π^∓, etc.). In this paper, we perform a combined fit of B̅ → D P and B̅ → D̅ P decays, including all observables. We again find a > 5σ disagreement with the SM_SU(3)_F, and we find that the data can be explained if ∼ 60% SU(3)_F-breaking effects are included.
ER  -