COMPASS collaboration (209 authors)Bordalo, PFranco, CNunes, Ana SofiaQuaresma, MQuintans, CRamos, SSilva, LStolarski, M2019-02-042019-02-042015-03-06http://dx.doi.org/10.1016/j.physletb.2015.01.042http://hdl.handle.net/10400.26/26652A search for the exclusive production of the Zc±(3900) hadron by virtual photons has been performed in the channel Zc±(3900)→J/ψπ± . The data cover the range from 7 GeV to 19 GeV in the centre-of-mass energy of the photon–nucleon system. The full set of the COMPASS data set collected with a muon beam between 2002 and 2011 has been used. An upper limit for the ratio BR(Zc±(3900)→J/ψπ±)×σγN→Zc±(3900)N/σγN→J/ψN of 3.7×10−3 has been established at the confidence level of 90%.engjournal article2019-02-04