Using samples of 2.25 X 10(8) J/psi events and 1.06 X 108 psi' events collected with the BES III detector, we study the f(0)(980) -> a(0)(0)(980) and a(0)(0)(980) -> f(0)(980) transitions in the processes J/psi -> phi f(0)(980) -> phi a(0)(0)(980) and chi(c1) -> pi(0)a(0)(0)(980) -> pi(0)f(0)(980), respectively. Evidence for f(0)(980) -> a(0)(0)(980) is found with a significance of 3.4 sigma, while in the case of a(0)(0)(980) -> f(0)(980) transition, the significance is 1.9 sigma. Measurements and upper limits of both branching ratios and mixing intensities are determined.

Study of a00(980)-f0(980) mixing

DESTEFANIS, MARCO GIOVANNI;GRECO, Michela;MAGGIORA, MARCO;SPATARO, STEFANO GIOVANNI;
2011-01-01

Abstract

Using samples of 2.25 X 10(8) J/psi events and 1.06 X 108 psi' events collected with the BES III detector, we study the f(0)(980) -> a(0)(0)(980) and a(0)(0)(980) -> f(0)(980) transitions in the processes J/psi -> phi f(0)(980) -> phi a(0)(0)(980) and chi(c1) -> pi(0)a(0)(0)(980) -> pi(0)f(0)(980), respectively. Evidence for f(0)(980) -> a(0)(0)(980) is found with a significance of 3.4 sigma, while in the case of a(0)(0)(980) -> f(0)(980) transition, the significance is 1.9 sigma. Measurements and upper limits of both branching ratios and mixing intensities are determined.
2011
83
032003-1
032003-11
http://link.aps.org/doi/10.1103/PhysRevD.83.032003
M. Ablikim; M. N. Achasov; L. An; Q. An; Z. H. An; J. Z. Bai; R. Baldini; Y. Ban; J. Becker; N. Berger; M. Bertani; J. M. Bian; I. Boyko; R. A. Briere...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2318/85462
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