Searches for the Higgs boson decays H -> ee and H -> e mu are performed using data corresponding to an integrated luminosity of 139 fb(-1) collected with the ATLAS detector in pp collisions at root s = 13 TeV at the LHC. No significant signals are observed, in agreement with the Standard Model expectation. For a Higgs boson mass of 125 GeV, the observed (expected) upper limit at the 95% confidence level on the branching fraction B(H -> ee) is 3.6 x 10(-4) (3.5 x 10(-4)) and on B(H -> e mu) is 6.2 x 10(-5) (5.9 x 10(-5)). These results represent improvements by factors of about five and six on the previous best limits on B(H -> ee) and B(H -> e mu) respectively. (C) 2019 The Author. Published by Elsevier B.V.

Aad, G., Abbott, B., Abbott, D.C., Abed Abud, A., Abeling, K., Abhayasinghe, D.K., et al. (2020). Search for the Higgs boson decays H → ee and H → eμ in pp collisions at with the ATLAS detector. PHYSICS LETTERS. SECTION B, 801 [10.1016/j.physletb.2019.135148].

Search for the Higgs boson decays H → ee and H → eμ in pp collisions at with the ATLAS detector

F. Ceradini;V. D'Amico;B. Di Micco;R. Di Nardo;L. Martinelli;D. Orestano;