A √ search for the Zγ decay mode of the Higgs boson in pp collisions at s = 13 TeV with the ATLAS detector Aguilar Saavedra, Juan Antonio Atlas Collaboration, / A search for the Zγ decay of the Higgs boson, with Z boson decays into pairs of electrons or muons is presented. The analysis uses proton–proton collision data at √s = 13 TeV corresponding to an integrated luminosity of 139 fb−1 recorded by the ATLAS detector at the Large Hadron Collider. The observed data are consistent with the expected background with a p-value of 1.3%. An upper limit at 95% confidence level on the production cross-section times the branching ratio for pp → H → Zγ is set at 3.6 times the Standard Model prediction while 2.6 times is expected in the presence of the Standard Model Higgs boson. The best-fit value for the signal yield normalised to the Standard Model prediction is 2.0+1.0 −0.9 where the statistical component of the uncertainty is dominant. 2021-02-03T11:05:30Z 2021-02-03T11:05:30Z 2020 info:eu-repo/semantics/article Aad, G., Abbott, B., Abbott, D. C., Abud, A. A., Abeling, K., Abhayasinghe, D. K., ... & Balunas, W. K. (2020). A search for the Zγ decay mode of the Higgs boson in pp collisions at s= 13 TeV with the ATLAS detector. Physics Letters B, 809, [doi: 10.1016/j.physletb.2020.135754] http://hdl.handle.net/10481/66262 10.1016/j.physletb.2020.135754 eng http://creativecommons.org/licenses/by/3.0/es/ info:eu-repo/semantics/openAccess Atribución 3.0 España ELSEVIER