Charmonium Decays to Axialvector plus Pseudoscalar Mesons

Details Charmonium Decays to Axialvector plus Pseudoscalar Mesons Charmonium Decays to Axialvector plus Pseudoscalar Mesons

1999-01-15

arxiv.org/abs/hep-ex/9901022v2

Phys.Rev.Lett.83:1918-1921,1999

Physics

High Energy Physics

High Energy Physics - Experiment

7 pages, 3 figures. Changes: excluded one figure, added information, systematic errors increased

Scientific paper

10.1103/PhysRevLett.83.1918

A sample of 3.79 million psi(2S) decays observed in the BES detector is used
to study the decays of charmonium to axialvector plus pseudoscalar mesons. The
branching fraction for psi(2S) to b1pi agrees with expectations. A contrasting
behavior between the psi(2S) and the J/psi decays to K1K cannot be accommodated
by an adjustment of the singlet-triplet axialvector mixing angle.

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