A 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.

Aad, G., Abbott, B., Abbott, D., Abeling, K., Abidi, S., Aboulhorma, A., et al. (2023). Search for heavy long-lived multi-charged particles in the full LHC Run 2 𝑝𝑝 collision data at √𝑠 = 13 TeV using the ATLAS detector. PHYSICS LETTERS. SECTION B, 847, 138316-1-138316-25 [10.1016/j.physletb.2023.138316].

Search for heavy long-lived multi-charged particles in the full LHC Run 2 𝑝𝑝 collision data at √𝑠 = 13 TeV using the ATLAS detector

Alberghi, G. L.;Alfonsi, F.;Bindi, M.;Boscherini, D.;Cabras, G.;Carratta, G.;Cavalli, N.;De Castro, S.;Fabbri, F.;Fabbri, L.;Franchini, M.;Gabrielli, A.;Lasagni Manghi, F.;Massa, L.;Polini, A.;Rinaldi, L.;Romano, M.;Sbarra, C.;Sbrizzi, A.;Semprini-Cesari, N.;Sioli, M.;Todome, K.;Valentinetti, S.;Villa, M.;Vittori, C.;Vivarelli, I.;Zoccoli, A.;
2023

Abstract

A 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
Aad, G., Abbott, B., Abbott, D., Abeling, K., Abidi, S., Aboulhorma, A., et al. (2023). Search for heavy long-lived multi-charged particles in the full LHC Run 2 ���� collision data at √�� = 13 TeV using the ATLAS detector. PHYSICS LETTERS. SECTION B, 847, 138316-1-138316-25 [10.1016/j.physletb.2023.138316].
Aad, G.; Abbott, B.; Abbott, D.C.; Abeling, K.; Abidi, S.H.; Aboulhorma, A.; Abramowicz, H.; Abreu, H.; Abulaiti, Y.; Abusleme Hoffman, A.C.; Acharya,...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/953835
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