Study of the decay $D^+\to K^*(892)^+ K_S^0$ in $D^+\to K^+ K_S^0 π^0$
Creators: name: BESIII Collaboration
name: Ablikim, M.
name: Achasov, M. N.
name: Adlarson, P.
name: Ahmed, S.
name: Albrecht, M.
name: Aliberti, R.
name: Amoroso, A.
name: An, M. R.
name: An, Q.
name: Bai, X. H.
name: Bai, Y.
name: Bakina, O.
name: Ferroli, R. Baldini
name: Balossino, I.
name: Ban, Y.
name: Begzsuren, K.
name: Berger, N.
name: Bertani, M.
name: Bettoni, D.
name: Bianchi, F.
name: Bloms, J.
name: Bortone, A.
name: Boyko, I.
name: Briere, R. A.
name: Cai, H.
name: Cai, X.
name: Calcaterra, A.
name: Cao, G. F.
name: Cao, N.
name: Cetin, S. A.
name: Chang, J. F.
name: Chang, W. L.
name: Chelkov, G.
name: Chen, D. Y.
name: Chen, G.
name: Chen, H. S.
name: Chen, M. L.
name: Chen, S. J.
name: Chen, X. R.
name: Chen, Y. B.
name: Chen, Z. J
name: Cheng, W. S.
name: Cibinetto, G.
name: Cossio, F.
name: Cui, X. F.
name: Dai, H. L.
name: Dai, X. C.
name: Dbeyssi, A.
name: de Boer, R. E.
name: Dedovich, D.
name: Deng, Z. Y.
name: Denig, A.
name: Denysenko, I.
name: Destefanis, M.
name: De Mori, F.
name: Ding, Y.
name: Dong, C.
name: Dong, J.
name: Dong, L. Y.
name: Dong, M. Y.
name: Dong, X.
name: Du, S. X.
name: Fan, Y. L.
name: Fang, J.
name: Fang, S. S.
name: Fang, Y.
name: Farinelli, R.
name: Fava, L.
name: Feldbauer, F.
name: Felici, G.
name: Feng, C. Q.
name: Feng, J. H.
name: Fritsch, M.
name: Fu, C. D.
name: Gao, Y.
name: Gao, Y.
name: Gao, Y.
name: Gao, Y. G.
name: Garzia, I.
name: Ge, P. T.
name: Geng, C.
name: Gersabeck, E. M.
name: Gilman, A
name: Goetzen, K.
name: Gong, L.
name: Gong, W. X.
name: Gradl, W.
name: Greco, M.
name: Gu, L. M.
name: Gu, M. H.
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name: Guan, C. Y
name: Guo, A. Q.
name: Guo, L. B.
name: Guo, R. P.
name: Guo, Y. P.
name: Guskov, A.
name: Han, T. T.
name: Han, W. Y.
name: Hao, X. Q.
name: Harris, F. A.
name: He, K. L.
name: Heinsius, F. H.
name: Heinz, C. H.
name: Held, T.
name: Heng, Y. K.
name: Herold, C.
name: Himmelreich, M.
name: Holtmann, T.
name: Hou, G. Y.
name: Hou, Y. R.
name: Hou, Z. L.
name: Hu, H. M.
name: Hu, J. F.
name: Hu, T.
name: Hu, Y.
name: Huang, G. S.
name: Huang, L. Q.
name: Huang, X. T.
name: Huang, Y. P.
name: Huang, Z.
name: Hussain, T.
name: Hüsken, N
name: Andersson, W. Ikegami
name: Imoehl, W.
name: Irshad, M.
name: Jaeger, S.
name: Janchiv, S.
name: Ji, Q.
name: Ji, Q. P.
name: Ji, X. B.
name: Ji, X. L.
name: Ji, Y. Y.
name: Jiang, H. B.
name: Jiang, X. S.
name: Jiao, J. B.
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name: Jin, S.
name: Jin, Y.
name: Jing, M. Q.
name: Johansson, T.
name: Kalantar-Nayestanaki, N.
name: Kang, X. S.
name: Kappert, R.
name: Kavatsyuk, M.
name: Ke, B. C.
name: Keshk, I. K.
name: Khoukaz, A.
name: Kiese, P.
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name: Lei, Z. H.
name: Leithoff, H.
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name: Lenz, T.
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name: Li, Cheng
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name: Li, H.
name: Li, H. B.
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name: Li, J. Q.
name: Li, J. S.
name: Li, Ke
name: Li, L. K.
name: Li, Lei
name: Li, P. R.
name: Li, S. Y.
name: Li, W. D.
name: Li, W. G.
name: Li, X. H.
name: Li, X. L.
name: Li, Xiaoyu
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name: Liang, H.
name: Liang, H.
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name: Liang, Y. F.
name: Liang, Y. T.
name: Liao, G. R.
name: Liao, L. Z.
name: Libby, J.
name: Lin, C. X.
name: Liu, B. J.
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name: Liu, D.
name: Liu, F. H.
name: Liu, Fang
name: Liu, Feng
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name: Liu, H. M.
name: Liu, Huanhuan
name: Liu, Huihui
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name: Lyu, X. R.
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name: Maldaner, S.
name: Malde, S.
name: Malik, Q. A.
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name: Messchendorp, J. G.
name: Mezzadri, G.
name: Min, T. J.
name: Mitchell, R. E.
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name: Muchnoi, N. Yu.
name: Muramatsu, H.
name: Nakhoul, S.
name: Nefedov, Y.
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name: Nikolaev, I. B.
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name: Ouyang, Q.
name: Pacetti, S.
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name: Pelizaeus, M.
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name: Peters, K.
name: Pettersson, J.
name: Ping, J. L.
name: Ping, R. G.
name: Poling, R.
name: Prasad, V.
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name: Rong, G.
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Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences
subject: FOS: Physical sciences

description: Based on an $e^{+}e^{-}$ collision data sample corresponding to an integrated luminosity of 2.93 $\mathrm{fb}^{-1}$ collected with the BESIII detector at $\sqrt{s}=3.773 \mathrm{GeV}$, the first amplitude analysis of the singly Cabibbo-suppressed decay $D^{+}\to K^+ K_S^0 π^0$ is performed. From the amplitude analysis, the $K^*(892)^+ K_S^0$ component is found to be dominant with a fraction of $(57.1\pm2.6\pm4.2)\%$, where the first uncertainty is statistical and the second systematic. In combination with the absolute branching fraction $\mathcal{B}(D^+\to K^+ K_S^0 π^0)$ measured by BESIII, we obtain $\mathcal{B}(D^+\to K^*(892)^+ K_S^0)=(8.69\pm0.40\pm0.64\pm0.51)\times10^{-3}$, where the third uncertainty is due to the branching fraction $\mathcal{B}(D^+\to K^+ K_S^0 π^0)$. The precision of this result is significantly improved compared to the previous measurement.
description: 12 pages, 15 figures