Search For Z_c(3900)^{±} → ωπ^{±}


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 Z{c}(3900)^{±} is found, and upper limits at the 90% confidence level on the Born cross section for the process e⁺e⁻ → Z{c}(3900)^{±} → π^{∓} → ωπ⁺π⁻ are determined to be 0.26 and 0.18 pb at √s̅ = 4.23 and 4.26 GeV, respectively.



Zc(3900), Causality (Physics), Hadrons, Mass (Physics), Born approximation

National Key Basic Research Program of China under Contract No. 2015CB856700; the National Natural Science Foundation of China (NSFC) under Contracts No. 11125525, No. 11235011, No. 11322544, No. 11335008, No. 11425524; Joint Large-Scale Scientific Facility Funds of the NSFC and CAS under Contracts No. 11179007, No. U1232201, No. U1332201; CAS under Contracts No. KJCX2-YW-N29, No. KJCX2-YW-N45; the Ministry of Development of Turkey under Contract No. DPT2006K-120470; the Russian Foundation for Basic Research under Contract No. 14-07-91152; the U.S. Department of Energy under Contracts No. DE-FG02-04ER41291, No. DE-FG02-05ER41374, No. DE-FG02-94ER40823, No. DESC0010118; WCU Program of National Research Foundation of Korea under Contract No. R32-2008-000-10155-0.


©2015 American Physical Society