Now showing items 1-2 of 2

    • Observation of Z_c (3900)⁰ in e⁺e⁻ → π⁰π⁰J/ψ 

      Ablikim, M.; Achasov, M. N.; Ai, X. C.; Albayrak, O.; Albrecht, M.; Ambrose, D. J.; Amoroso, A.; Lou, Xinchou; BESIII Collaboration (2015-09-11)
      Using a data sample collected with the BESIII detector operating at the BEPCII storage ring, we observe a new neutral state Z_c (3900)⁰ with a significance of 10.4σ. The mass and width are measured to be 3894.8 ± 2.3 ± 3.2 ...
    • Search For Z_c(3900)^{±} → ωπ^{±} 

      Ablikim, M.; Achasov, M. N.; Ai, X. C.; Albayrak, O.; Albrecht, M.; Ambrose, D. J.; Amoroso, A.; Lou, Xinchou; BESIII Collaboration (2015-08-28)
      The decay Z{c}(3900)^{±} → ωπ^{±} is searched for using data samples collected with the BESIII detector operating at the BEPCII storage ring at center-of-mass energies √s̅ = 4.23 and 4.26 GeV. No significant signal for the ...