Partial Wave Analysis of $χ_{c0}\toπ^+π^-K^+K^-$

Details Partial Wave Analysis of $χ_{c0}\toπ^+π^-K^+K^-$ Partial Wave Analysis of $χ_{c0}\toπ^+π^-K^+K^-$

2005-08-24

arxiv.org/abs/hep-ex/0508050v2

Phys.Rev.D72:092002,2005

Physics

High Energy Physics

High Energy Physics - Experiment

16 pages, 9 figures, and 4 tables

Scientific paper

10.1103/PhysRevD.72.092002

A partial wave analysis of $\chi_{c0}\to\pi^+\pi^-K^+K^-$ in $\psi(2S)\to\gamma\chi_{c0}$ decay is presented using a sample of 14 million $\psi(2S)$ events accumulated by the BES II detector. The data are fitted to the sum of relativistic covariant tensor amplitudes for intermediate resonant decay modes. From the fit, significant contributions to $\chi_{c0}$ decays from the channels $f_0(980)f_0(980)$, $f_0(980)f_0(2200)$, $f_0(1370)f_0(1710)$, $K^*(892)^0\bar K^*(892)^0$, $K^*_0(1430)\bar K^*_0(1430)$, $K^*_0(1430)\bar K^*_2(1430) + c.c.$, and $K_1(1270)K$ are found. Flavor-SU(3)-violating $K_1(1270)-K_1(1400)$ asymmetry is observed. Values obtained for the masses and widths of the resonances $f_0(1710)$, $f_0(2200)$, $f_0(1370)$, and $K^*_0(1430)$ are presented.

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