The CMS collaboration, Khachatryan V.Khachatryan V.The CMS collaborationStathes PaganisPAO-TI CHANG et al.YEE HSIUNG et al.KAI-FENG CHEN et al.RONG-SHYANG LU et al.WEI-SHU HOU et al.2021-07-282021-07-28201711266708https://www.scopus.com/inward/record.uri?eid=2-s2.0-85011844252&doi=10.1007%2fJHEP01%282017%29076&partnerID=40&md5=aaffb531993e6f995486fe0f6eee6d73https://scholars.lib.ntu.edu.tw/handle/123456789/575093This paper describes the search for a high-mass narrow-width scalar particle decaying into a Z boson and a photon. The analysis is performed using proton-proton collision data recorded with the CMS detector at the LHC at center-of-mass energies of 8 and 13 TeV, corresponding to integrated luminosities of 19.7 and 2.7 fb?1, respectively. The Z bosons are reconstructed from opposite-sign electron or muon pairs. No statistically significant deviation from the standard model predictions has been found in the 200-2000 GeV mass range. Upper limits at 95% confidence level have been derived on the product of the scalar particle production cross section and the branching fraction of the Z decaying into electrons or muons, which range from 280 to 20 fb for resonance masses between 200 and 2000 GeV.[Figure not available: see fulltext.] ? 2017, The Author(s).journal article10.1007/JHEP01(2017)0762-s2.0-85011844252