Aad, G.Abbott, B.Abbott, D.C.ATLAS CollaborationKuleshov, S.Zamora Saa, J.A.2025-01-092025-01-092023-12Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics. Volume 847. 10 December 2023. Article number 1383160370-2693https://repositorio.unab.cl/handle/ria/62956Indexación: ScopusA search for heavy long-lived multi-charged particles is performed using the ATLAS detector at the LHC. Data collected in 2015–2018 at s=13 TeV from pp collisions corresponding to an integrated luminosity of 139 fb−1 are examined. Particles producing anomalously high ionization, consistent with long-lived spin-½ massive particles with electric charges from |q|=2e to |q|=7e are searched for. No statistically significant evidence of such particles is observed, and 95% confidence level cross-section upper limits are calculated and interpreted as the lower mass limits for a Drell–Yan plus photon-fusion production mode. The least stringent limit, 1060 GeV, is obtained for |q|=2e particles, and the most stringent one, 1600 GeV, is for |q|=6e particles. © 2023 The Author(s)enLHCpp collisionsMulti-charged Particles√𝑠 = 13 TeVArtículo