Study of K_S⁰-K_L⁰ asymmetry in the decays D⁰ → K_S⁰ω and D⁰ → K_L⁰ ω

@misc{collaboration2026study,
  title = {{Study of $K_S^0$-$K_L^0$ asymmetry in the decays $D^0 \to K_S^0ω$ and $D^0 \to K_L^0 ω$}},
  author = {BESIII Collaboration and M. Ablikim and M. N. Achasov and P. Adlarson and X. C. Ai and C. S. Akondi and R. Aliberti and A. Amoroso and Q. An and Y. H. An and Y. Bai and O. Bakina and H. R. Bao and X. L. Bao and M. Barbagiovanni and V. Batozskaya and K. Begzsuren and N. Berger and M. Berlowski and M. B. Bertani and D. Bettoni and F. Bianchi and E. Bianco and A. Bortone and I. Boyko and R. A. Briere and A. Brueggemann and D. Cabiati and H. Cai and M. H. Cai and X. Cai and A. Calcaterra and G. F. Cao and N. Cao and S. A. Cetin and X. Y. Chai and J. F. Chang and T. T. Chang and G. R. Che and Y. Z. Che and C. H. Chen and Chao Chen and G. Chen and H. S. Chen and H. Y. Chen and M. L. Chen and S. J. Chen and S. M. Chen and T. Chen and W. Chen and X. R. Chen and X. T. Chen and X. Y. Chen and Y. B. Chen and Y. Q. Chen and Z. K. Chen and J. Cheng and L. N. Cheng and S. K. Choi and X. Chu},
  howpublished = {arXiv},
  year = {2026},
  month = sep,
  doi = {10.48550/arxiv.2609.03462},
  eprint = {2609.03462},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2609.03462},
  note = {CC BY 4.0},
}

TY  - UNPB
TI  - Study of K_S^0-K_L^0 asymmetry in the decays D^0 → K_S^0ω and D^0 → K_L^0 ω
AU  - BESIII Collaboration
AU  - M. Ablikim
AU  - M. N. Achasov
AU  - P. Adlarson
AU  - X. C. Ai
AU  - C. S. Akondi
AU  - R. Aliberti
AU  - A. Amoroso
AU  - Q. An
AU  - Y. H. An
AU  - Y. Bai
AU  - O. Bakina
AU  - H. R. Bao
AU  - X. L. Bao
AU  - M. Barbagiovanni
AU  - V. Batozskaya
AU  - K. Begzsuren
AU  - N. Berger
AU  - M. Berlowski
AU  - M. B. Bertani
AU  - D. Bettoni
AU  - F. Bianchi
AU  - E. Bianco
AU  - A. Bortone
AU  - I. Boyko
AU  - R. A. Briere
AU  - A. Brueggemann
AU  - D. Cabiati
AU  - H. Cai
AU  - M. H. Cai
AU  - X. Cai
AU  - A. Calcaterra
AU  - G. F. Cao
AU  - N. Cao
AU  - S. A. Cetin
AU  - X. Y. Chai
AU  - J. F. Chang
AU  - T. T. Chang
AU  - G. R. Che
AU  - Y. Z. Che
AU  - C. H. Chen
AU  - Chao Chen
AU  - G. Chen
AU  - H. S. Chen
AU  - H. Y. Chen
AU  - M. L. Chen
AU  - S. J. Chen
AU  - S. M. Chen
AU  - T. Chen
AU  - W. Chen
AU  - X. R. Chen
AU  - X. T. Chen
AU  - X. Y. Chen
AU  - Y. B. Chen
AU  - Y. Q. Chen
AU  - Z. K. Chen
AU  - J. Cheng
AU  - L. N. Cheng
AU  - S. K. Choi
AU  - X. Chu
PY  - 2026
DA  - 2026/09/03
PB  - arXiv
DO  - 10.48550/arxiv.2609.03462
UR  - https://arxiv.org/abs/2609.03462
AB  - Based on e^+ e^- annihilation data corresponding to an integrated luminosity of 7.93~fb^−1 collected at a center-of-mass energy of 3.773 GeV with the BESIII detector at the BEPCII collider, the absolute branching fractions of the decays D^0 → K_S^0 ω and D^0 → K_L^0 ω are measured to be (11.79 ± 0.19 ± 0.26 ± 0.47) × 10^−3 and (10.84 ± 0.14 ± 0.23 ± 0.44) × 10^−3, respectively. The K_S^0− K_L^0 branching-fraction asymmetry of these two decays is R(D^0,K_S,L^0 ω) = (ℬ(D^0 → K_S^0 ω) − ℬ(D^0 → K_L^0ω))/(ℬ(D^0 → K_S^0 ω) + ℬ(D^0 → K_L^0 ω)) =(4.2 ± 1.0 ± 0.9 ± 2.8)%. Here, the first uncertainties are statistical, the second systematic, and the third arise from the interference between D^0 → K_S,L^0 ω and the non-resonant D^0 → π^+ π^- π^0 K_S,L^0 processes.
ER  -