Search for the isospin violating decay Y(4260)→ J/ψηπ0
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Date
2015-07-17
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Amer physical soc
Abstract
Using data samples collected at center-of-mass energies of root 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/psi eta pi(0). No signal is observed, and upper limits on the cross section sigma(e(+)e(-) -> J/psi eta pi(0)) 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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Keywords
E(+)e(-)
Citation
Ablikim, M. vd. (2015). ''Search for the isospin violating decay Y(4260)→ J/ψηπ0''. Physical review d, 92(1).