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    • Observation of a(0)(0)(980)-f(0)(980) Mixing 

      Kolcu, Onur Buğra (Amer Physical Soc., 2018)
      We report the first observation of a(0)(0)(980)-f(0)(980) mixing in the decays of J/psi -> phi f(0)(980) -> phi a(0)(0)(980) -> phi eta pi(0) and chi(c1) -> a(0)(0)(980)pi(0) -> f(0)(980)pi(0)->pi(+)pi(-)pi(0), using data ...
    • Observation of psi(3686) -> eta ' e(+)e(-) 

      Kolcu, Onur Buğra (Elsevier Science Bv., 2018)
      Using a data sample of 448.1 x 10(6) psi(3686) events collected with the BESIII detector at the BEPCII collider, we report the first observation of the electromagnetic Dalitz decay psi(3686) -> eta'e(+)e(-), with significances ...