Determination of the CP-even fraction of D0→$K^0_S$π+π–⁢π0

Determination of the CP-even fraction of D0→$K^0_S$π+π–⁢π0

Quantum-correlated $D\bar{D}$ pairs collected by the BESIII experiment at the Ψ⁡(3770) resonance corresponding to an integrated luminosity of 2.93 fb–1 are used to study the D0→$K^0_S$π+π–⁢π0 decay mode. The CP-even fraction of $K^0_S$π+π–⁢π0 decays is determined to be 0.235 ± 0.010 ± 0.002, where t...

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Veröffentlicht in:Physical review. D 2023-08, Vol.108 (3)
Hauptverfasser: An, M.  R., Batozskaya, V., Berger, N., Bloms, J., Briere, R.  A., Chen, C., Chen, H.  S., Chen, T., Chu, X., Cossio, F., Fang, J., Gersabeck, E.  M., Gong, L., Guan, C. Y., Heinz, C.  H., Hou, Z.  L., Hu, J.  F., Hu, T., Huang, L.  Q., Imoehl, W., Irshad, M., Janchiv, S., Ji, X.  B., Ji, X.  L., Jia, Z.  K., Jiao, J.  B., Lavania, A., Li, C., Li, Cheng, Li, H.  B., Li, Hui, Li, Ke, Li, P.  R., Li, X.  L., Li, Z.  X., Liang, C., Liu, B.  J., Liu, Fang, Liu, Feng, Liu, Huanhuan, Liu, J.  L., Liu, J.  Y., Liu, W.  K., Lu, F.  X., Lu, H.  J., Luo, C.  L., Ma, H.  L., Ma, R.  Q., Ma, R.  T., Malde, S., Marcello, S., Mezzadri, G., Peng, H.  P., Ping, J.  L., Qin, L.  Q., Qin, X.  P., Shan, X.  Y., Shi, Q.  Q., Song, J.  J., Song, Y.  J., Stieler, F., Tang, J., Tao, L. Y., Thoren, V., Wang, J.  P., Wang, M., Wang, T., Wang, W.  P., Wang, X.  F., Wang, Y.  N., Wang, Y.  Q., Wang, Yi, Wang, Ziyi, Wu, L.  H., Wu, Y.  J., Xiang, T., Xiao, Y.  L., Xie, X.  H., Xie, Y.  H., Xu, W., Xu, Z.  S., Yang, H.  L., Yang, Y.  X., Yang, Z.  W., Zhang, A.  Q., Zhang, D.  H., Zhang, G.  Y., Zhang, H.  Y., Zhang, J.  L., Zhang, J.  Y., Zhang, Jianyu, Zhang, Yao, Zhao, J., Zhao, Ling, Zhao, S.  J., Zhao, Y.  B., Zhao, Y.  X., Zheng, B., Zhou, Y.  Z., Zhu, L.  X.
Format: Artikel
Sprache:eng
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ASTRONOMY AND ASTROPHYSICS
charm quark
hadronic decays
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Zusammenfassung:Quantum-correlated $D\bar{D}$ pairs collected by the BESIII experiment at the Ψ⁡(3770) resonance corresponding to an integrated luminosity of 2.93 fb–1 are used to study the D0→$K^0_S$π+π–⁢π0 decay mode. The CP-even fraction of $K^0_S$π+π–⁢π0 decays is determined to be 0.235 ± 0.010 ± 0.002, where the first uncertainty is statistical and the second is systematic.
ISSN:2470-0010