Электронный каталог

Статья

Aad, G.
Search for Magnetic Monopole Pair Production in Ultraperipheral Pb+Pb Collisions at *%s&sub(NN)=5.36 TeV with the ATLAS Detector at the LHC / G.Aad, F.Ahmadov, I.N.Aleksandrov, V.A.Bednyakov, I.R.Boyko, G.Chelkov, A.Cheplakov, M.V.Chizhov, D.V.Dedovich, M.Demichev, A.R.Didenko, M.I.Gostkin, S.N.Karpov, Z.M.Karpova, U.Kruchonak, V.Kukhtin, Y.Kulchitsky, E.Ladygin, V.Lyubushkin, T.Lyubushkina, S.Malyukov, M.Mineev, E.Plotnikova, I.N.Potrap, M.Shiyakova, A.Soloshenko, A.Tropina, P.V.Tsiareshka, T.Turtuvshin, A.Vasyukov, I.Yeletskikh, A.Zhemchugov, N.I.Zimine, [ATLAS Collab.] // Physical Review Letters [Electronic resource]. – 2025. – Vol. 134, No. 6. – P. 061803. – URL: https://doi.org/10.1103/PhysRevLett.134.061803. – Bibliogr.: 84.

This Letter presents a search for highly ionizing magnetic monopoles in 262  μ⁢b*−*1 of ultraperipheral Pb+Pb collision data at √𝑠&sub(NN)=5.36  TeV collected by the ATLAS detector at the LHC. A new methodology that exploits the properties of clusters of hits reconstructed in the innermost silicon detector layers is introduced to study highly ionizing particles in heavy-ion data. No significant excess above the background, which is estimated using a data-driven technique, is observed. Using a nonperturbative semiclassical model, upper limits at 95% confidence level are set on the cross section for pair production of monopoles with a single Dirac magnetic charge in the mass range of 20–150 GeV. Depending on the model, monopoles with a single Dirac magnetic charge and mass below 80–120 GeV are excluded.



ОИЯИ = ОИЯИ (JINR)2025