Amplitude Analysis of the D+→KS0π+π0D^+ \to K^0_S π^+ π^0 Dalitz Plot

preprint2014arXivOpen access
BESIII CollaborationM. AblikimM. N. AchasovX. C. AiO. AlbayrakM. AlbrechtD. J. AmbroseF. F. AnQ. AnJ. Z. BaiR. Baldini FerroliY. BanJ. V. BennettM. BertaniJ. M. BianE. BogerO. BondarenkoI. BoykoS. BraunR. A. BriereH. CaiX. CaiO. CakirA. CalcaterraG. F. CaoS. A. CetinJ. F. ChangG. ChelkovG. ChenH. S. ChenJ. C. ChenM. L. ChenS. J. ChenX. ChenX. R. ChenY. B. ChenH. P. ChengX. K. ChuY. P. ChuD. Cronin-HennessyH. L. DaiJ. P. DaiD. DedovichZ. Y. DengA. DenigI. DenysenkoM. DestefanisW. M. DingY. DingC. DongJ. DongL. Y. DongM. Y. DongS. X. DuJ. Z. FanJ. FangS. S. FangY. FangL. FavaC. Q. FengC. D. FuO. FuksQ. GaoY. GaoC. GengK. GoetzenW. X. GongW. GradlM. GrecoM. H. GuY. T. GuY. H. GuanA. Q. GuoL. B. GuoT. GuoY. P. GuoY. L. HanF. A. HarrisK. L. HeM. HeZ. Y. HeT. HeldY. K. HengZ. L. HouC. HuH. M. HuJ. F. HuT. HuG. M. HuangG. S. HuangH. P. HuangJ. S. HuangL. HuangX. T. HuangY. HuangT. HussainC. S. JiQ. JiQ. P. JiX. B. JiX. L. JiL. L. JiangL. W. JiangX. S. JiangJ. B. JiaoZ. JiaoD. P. JinS. JinT. JohanssonN. Kalantar-NayestanakiX. L. KangX. S. KangM. KavatsyukB. KlossB. KopfM. KornicerW. KuehnA. KupscW. LaiJ. S. LangeM. LaraP. LarinM. LeyheC. H. LiCheng LiCui LiD. LiD. M. LiF. LiG. LiH. B. LiJ. C. LiK. LiLei LiP. R. LiQ. J. LiT. LiW. D. LiW. G. LiX. L. LiX. N. LiX. Q. LiZ. B. LiH. LiangY. F. LiangY. T. LiangD. X. LinB. J. LiuC. L. LiuC. X. LiuF. H. LiuFang LiuFeng LiuH. B. LiuH. H. LiuH. M. LiuJ. LiuJ. P. LiuK. LiuK. Y. LiuP. L. LiuQ. LiuS. B. LiuX. LiuY. B. LiuZ. A. LiuZhiqiang LiuZhiqing LiuH. LoehnerX. C. LouG. R. LuH. J. LuH. L. LuJ. G. LuX. R. LuY. LuY. P. LuC. L. LuoM. X. LuoT. LuoX. L. LuoM. LvF. C. MaH. L. MaQ. M. MaS. MaT. MaX. Y. MaF. E. MaasM. MaggioraQ. A. MalikY. J. MaoZ. P. MaoJ. G. MesschendorpJ. MinT. J. MinR. E. MitchellX. H. MoY. J. MoH. MoeiniC. Morales MoralesK. MoriyaN. Yu. MuchnoiH. MuramatsuY. NefedovI. B. NikolaevZ. NingS. NisarX. Y. NiuS. L. OlsenQ. OuyangS. PacettiM. PelizaeusH. P. PengK. PetersJ. L. PingR. G. PingR. PolingN. Q.M. QiS. QianC. F. QiaoL. Q. QinX. S. QinY. QinZ. H. QinJ. F. QiuK. H. RashidC. F. RedmerM. RipkaG. RongX. D. RuanA. SarantsevK. SchoenningS. SchumannW. ShanM. ShaoC. P. ShenX. Y. ShenH. Y. ShengM. R. ShepherdW. M. SongX. Y. SongS. SpataroB. SpruckG. X. SunJ. F. SunS. S. SunY. J. SunY. Z. SunZ. J. SunZ. T. SunC. J. TangX. TangI. TapanE. H. ThorndikeD. TothM. UllrichI. UmanG. S. VarnerB. WangD. WangD. Y. WangK. WangL. L. WangL. S. WangM. WangP. WangP. L. WangQ. J. WangS. G. WangW. WangX. F. WangY. D. WangY. F. WangY. Q. WangZ. WangZ. G. WangZ. H. WangZ. Y. WangD. H. WeiJ. B. WeiP. WeidenkaffS. P. WenM. WernerU. WiednerM. WolkeL. H. WuN. WuZ. WuL. G. XiaY. XiaD. XiaoZ. J. XiaoY. G. XieQ. L. XiuG. F. XuL. XuQ. J. XuQ. N. XuX. P. XuZ. XueL. YanW. B. YanW. C. YanY. H. YanH. X. YangL. YangY. YangY. X. YangH. YeM. YeM. H. YeB. X. YuC. X. YuH. W. YuJ. S. YuS. P. YuC. Z. YuanW. L. YuanY. YuanA. A. ZafarA. ZalloS. L. ZangY. ZengB. X. ZhangB. Y. ZhangC. ZhangC. B. ZhangC. C. ZhangD. H. ZhangH. H. ZhangH. Y. ZhangJ. J. ZhangJ. Q. ZhangJ. W. ZhangJ. Y. ZhangJ. Z. ZhangS. H. ZhangX. J. ZhangX. Y. ZhangY. ZhangY. H. ZhangZ. H. ZhangZ. P. ZhangZ. Y. ZhangG. ZhaoJ. W. ZhaoLei ZhaoLing ZhaoM. G. ZhaoQ. ZhaoQ. W. ZhaoS. J. ZhaoT. C. ZhaoX. H. ZhaoY. B. ZhaoZ. G. ZhaoA. ZhemchugovB. ZhengJ. P. ZhengY. H. ZhengB. ZhongL. ZhouLi ZhouX. ZhouX. K. ZhouX. R. ZhouX. Y. ZhouK. ZhuK. J. ZhuX. L. ZhuY. C. ZhuY. S. ZhuZ. A. ZhuJ. ZhuangB. S. ZouJ. H. Zou

Abstract

We perform an analysis of the D+→KS0π+π0D^+ \to K^0_S π^+ π^0 Dalitz plot using a data set of 2.92 fb−1^{-1} of e+e−e^+e^- collisions at the ψ(3770)ψ(3770) mass accumulated by the BESIII Experiment, in which 166694 candidate events are selected with a background of 15.1%. The Dalitz plot is found to be well-represented by a combination of six quasi-two-body decay channels (KS0ρ+K^0_Sρ^+, KS0ρ(1450)+K^0_Sρ(1450)^+, K‾∗0π+\overline{K}^{*0}π^+, K‾0(1430)0π+\overline{K}_0(1430)^0π^+, K‾(1680)0π+\overline{K}(1680)^0π^+, κ‾0π+\overlineκ^0π^+) plus a small non-resonant component. Using the fit fractions from this analysis, partial branching ratios are updated with higher precision than previous measurements.

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