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Amplitude Analysis of the $D^+ \to K^0_S \pi^+ \pi^0$ Dalitz Plot
- Source :
- Phys. Rev. D 89, 052001 (2014)
- Publication Year :
- 2014
-
Abstract
- We perform an analysis of the $D^+ \to K^0_S \pi^+ \pi^0$ Dalitz plot using a data set of 2.92 fb$^{-1}$ of $e^+e^-$ collisions at the $\psi(3770)$ 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 ($K^0_S\rho^+$, $K^0_S\rho(1450)^+$, $\overline{K}^{*0}\pi^+$, $\overline{K}_0(1430)^0\pi^+$, $\overline{K}(1680)^0\pi^+$, $\overline{\kappa}^0\pi^+$) plus a small non-resonant component. Using the fit fractions from this analysis, partial branching ratios are updated with higher precision than previous measurements.<br />Comment: 24 pages, 7 figures, submitted to Phys. Rev. D; Author names added, typos added, old PACS numbers (PACS2003) hidded
- Subjects :
- High Energy Physics - Experiment
Subjects
Details
- Database :
- arXiv
- Journal :
- Phys. Rev. D 89, 052001 (2014)
- Publication Type :
- Report
- Accession number :
- edsarx.1401.3083
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1103/PhysRevD.89.052001