Observation of the charged hadron Zc±(3900) and evidence for the neutral

Search forZc(3900)±→ωπ±Ablikim1, Ачасов2, Ai3 et al. 2015Phys. Rev. D181110View full textAdd to dashboardCite

“…Its existence was confirmed shortly thereafter with CLEO-c data [3]. The existence of the neutral partner in the decay Z c (3900) 0 → J/ψπ 0 has also been reported in CLEO-c data [3] and by BESIII [4].…”

Recent results on hadron spectroscopy from BESIII

“…Its existence was confirmed shortly thereafter with CLEO-c data [6]. The existence of the neutral partner in the decay Z c (3900) 0 → J/ψπ 0 has also been reported in CLEO-c data [6] and by BESIII [7], thus complementing the isospin-triplet representation of isospin one, I = 1, resonances. The Z c (3900) is a good candidate for an exotic state beyond simple quark models, since it contains a cc pair and is also electrically charged.…”

Zc(3900): Experiment, Theory, Lattice

“…The resonant-like structure Z c (3900) ± was first seen simultaneously by the BESIII and Belle collaborations [3,4] in the J/ψπ spectrum produced in the e + e − → Y(4260) → J/ψπ + π − reaction. It was confirmed in an analysis [5] based on CLEO-c data. A similar structure, Z c (3885) ± , with quantum numbers favored to be J P = 1 + , has also been reported by the BESIII collaboration [6,7] in theD * D spectrum of e + e − →D * Dπ.…”

“…In the right panel, we show our predicted pole position (with errors) for Z c (3900) in the resonant scenario for Λ 2 = 0.5 GeV and Λ 2 = 1 GeV. We also show the determinations of experimental works [3][4][5][6][7].…”

“…2, right panel, we compare the pole position obtained in this work for the Z c resonance with the experimental determinations of Refs. [3][4][5][6][7]. The specific values for the poles positions can be seen in Ref.…”