Amplitude Analysis and Branching-fraction Measurement of D-s(+) -> (KSK-)-K-0 pi(+)pi(+)
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2021Metadata
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BESIII Collaboration. (2021). Amplitude analysis and branching fraction measurement of $ D_s^+\to K^-K^+\pi^+\pi^ 0$. arXiv preprint arXiv:2103.02482.Abstract
Using 6.32 fb(-1) of e(+)e(-) collision data collected by the BESIII detector at the center-of-mass energies between 4.178 and 4.226 GeV, an amplitude analysis of the D-s(+) -> (KSK-)-K-0 pi(+)pi(+) decays is performed for the first time to determine the intermediate-resonant contributions. The dominant component is the D-s(+) -> K*(892)(+)(K) over bar*(892)(0) decay with a fraction of (40.6 +/- 2.9(stat) +/- 4.9(sys))%. Our results of the amplitude analysis are used to obtain a more precise measurement of the branching fraction of the D-s(+) -> (KSK-)-K-0 pi(+)pi(+) decay, which is determined to be (1.46 +/- 0.05(stat) +/- 0.05(sys))%.
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Physical Review DVolume
103Issue
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