Details

Autor(en) / Beteiligte

• An, F. F.
• Berger, N.
• Bianchi, F.
• Boyko, I.
• Cai, X.
• Calcaterra, A.
• Chelkov, G.
• Chen, P. L.
• Dou, Z. L.
• Felici, G.
• Feng, C. Q.
• Gao, Y. G.
• Gong, W. X.
• Gu, Y. T.
• Guo, A. Q.
• Han, S.
• He, K. L.
• Holtmann, T.
• Hou, Z. L.
• Hu, H. M.
• Hu, Y.
• Huang, G. S.
• Huang, X. Z.
• Huang, Z. L.
• Hussain, T.
• Jiang, X. Y.
• Jiao, J. B.
• Jiao, Z.
• Jin, S.
• Kavatsyuk, M.
• Ke, B. C.
• Kornicer, M.
• Kuemmel, M.
• Kuhlmann, M.
• Lange, J. S.
• Larin, P.
• Li, F.
• Li, G.
• Li, H. J.
• Li, P. L.
• Li, Q. Y.
• Li, X. N.
• Li, X. Q.
• Liang, Y. F.
• Liao, G. R.
• Liu, B.
• Liu, J. B.
• Liu, J. Y.
• Liu, K. Y.
• Liu, P. L.
• Ma, Y. M.
• Mao, Z. P.
• Meng, Z. X.
• Messchendorp, J. G.
• Mezzadri, G.
• Nerling, F.
• Pellegrino, J.
• Qi, H. R.
• Qi, M.
• Qin, X. S.
• Qiu, J. F.
• Ripka, M.
• Schnier, C.
• Shan, W.
• Sun, Y. J.
• Sun, Z. J.
• Sun, Z. T.
• Tang, G. Y.
• Varner, G. S.
• Wang, B.
• Wang, D. Y.
• Wang, P. L.
• Wang, Y.
• Wang, Z.
• Wang, Zongyuan
• Weber, T.
• Wei, D. H.
• Wolke, M.
• Xiong, X. A.
• Xu, Q. N.
• Xu, X. P.
• Yan, L.
• Yan, W. B.
• Yang, L.
• Yin, J. H.
• Yuan, Y.
• Zeng, Z.
• Zhang, B. Y.
• Zhang, H. Y.
• Zhang, J. Y.
• Zhang, L.
• Zhang, X. Y.
• Zhang, Z. P.
• Zhao, Lei
• Zhao, S. J.
• Zhao, T. C.
• Zheng, B.
• Zheng, Y. H.
• Zhu, K.
• Zhu, Z. A.

Titel

Measurement of singly Cabibbo-suppressed decays D0 →π0 π0 π0, π0 π0 η , π0 ηη and ηηη

Ist Teil von

• Physics letters. B, 2018-04, Vol.781 (C)

Ort / Verlag

United States: Elsevier

Erscheinungsjahr

2018

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Using a data sample of e+e- collision data corresponding to an integrated luminosity of 2.93 fb-1 collected with the BESIII detector at a center-of-mass energy of √s = 3.773 GeV, we search for the singly Cabibbo-suppressed decays D0 → π0π0π0, π0π0η, π0ηη and ηηη using the double tag method. The absolute branching fractions are measured to be B(D0 → π0π0π0) = (2.0 ± 0.4 ± 0.3) × 10-4, B(D0 → π0π0η) = (3.8 ± 1.1 ± 0.7) × 10-4 and B(D0 → π0ηη) = (7.3 ± 1.6 ± 1.5) × 10-4 with the statistical significances of 4.8σ, 3.8σ and 5.5σ, respectively, where the first uncertainties are statistical and the second ones systematic. No significant signal of D0 → ηηη is found, and the upper limit on its decay branching fraction is set to be B(D0 → ηηη) < 1.3 × 10-4 at the 90% confidence level.