Abstract
Using data samples collected at center-of-mass energies of √s= 4.009, 4.226, 4.257, 4.358, 4.416, and 4.599 GeV with the BESIII detector operating at the BEPCII storage ring, we search for the isospin violating decay Y(4260) → J/ψηπ0. No signal is observed, and upper limits on the cross section σ(e+e− → J/ψηπ0) at the 90% confidence level are determined to be 3.6, 1.7, 2.4, 1.4, 0.9, and 1.9 pb, respectively.
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CITATION STYLE
Ablikim, M., Achasov, M. N., Ai, X. C., Albayrak, O., Albrecht, M., Ambrose, D. J., … Zou, J. H. (2015). Search for the isospin violating decay Y(4260) → J/ψηπ0. Physical Review D - Particles, Fields, Gravitation and Cosmology, 92(1), 012008-1-012008–8. https://doi.org/10.1103/PhysRevD.92.012008
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