Observation of D⁺ → K^*0ρ⁺ and D⁺→ K^*+ρ⁰ in Doubly Cabibbo-Suppressed Decay D⁺ → K⁺π⁺π^-π⁰

@misc{collaboration2026observation,
  title = {{Observation of $D^+ \to K^*0ρ^+$ and $D^+\to K^*+ρ^0$ in Doubly Cabibbo-Suppressed Decay $D^+ \to K^+π^+π^-π^0$}},
  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 = oct,
  doi = {10.48550/arxiv.2610.05261},
  eprint = {2610.05261},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2610.05261},
}

TY  - UNPB
TI  - Observation of D^+ → K^*0ρ^+ and D^+→ K^*+ρ^0 in Doubly Cabibbo-Suppressed Decay D^+ → K^+π^+π^-π^0
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  - 2026/10/04
PB  - arXiv
DO  - 10.48550/arxiv.2610.05261
UR  - https://arxiv.org/abs/2610.05261
AB  - By analyzing an e^+e^- collision data sample with an integrated luminosity of 20.3 fb^−1 collected with the BESIII detector at the center-of-mass energy of 3.773 GeV, we perform the first amplitude analysis on the doubly Cabibbo-suppressed decay D^+ → K^+π^+π^-π^0 and report the first observation of D^+ → K^*0ρ^+ and D^+→ K^*+ρ^0. The corresponding branching fractions are (5.67±0.41_stat±0.17_syst)×10^−4 and (5.32±0.57_stat±0.24_syst)×10^−4, respectively. These two D→ VV decay both have large transverse polarizations. The longitudinal polarization fractions are measured to be 0.111±0.024_stat±0.008_syst and 0.263±0.049_stat±0.015_syst, respectively. The branching fraction of the decay D^+→ K^+ω is measured to be (4.76±0.84_stat±0.13_syst)× 10^−5.
ER  -