Search for emerging jets in pp collisions at s = 13 TeV with the ATLAS experiment
A search is presented for emerging jets using 140 fb - 1 of proton–proton collision data at s = 13 TeV , collected by the ATLAS experiment between 2015 and 2018. The search looks for the existence of a dark sector with symmetries similar to those in quantum chromodynamics. This dark sector is popula...
| Authors: | ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; |
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| Format: | Article |
| Status: | Published version |
| Publication date: | 2026 |
| Country: | Chile |
| Institution: | Pontificia Universidad Católica de Chile |
| Repository: | Pontificia Universidad Católica de Chile |
| OAI Identifier: | oai:repositorio.uc.cl:11534/110250 |
| Online Access: | https://doi.org/10.1140/epjc/s10052-026-15693-1 https://repositorio.uc.cl/handle/11534/110250 |
| Access Level: | Open access |
| Keyword: | 510 Matemática física y química |
| Summary: | A search is presented for emerging jets using 140 fb - 1 of proton–proton collision data at s = 13 TeV , collected by the ATLAS experiment between 2015 and 2018. The search looks for the existence of a dark sector with symmetries similar to those in quantum chromodynamics. This dark sector is populated with dark quarks, which undergo showering similar to quarks in the Standard Model, leading to a high multiplicity of long-lived dark hadrons within a dark jet. These dark hadrons subsequently decay to Standard Model particles via a new heavy scalar mediating particle ϕ . This results in jets which contain multiple displaced vertices, known as emerging jets. This analysis targets four-jet topologies, with two emerging jets and two Standard Model jets, resulting from the decay of pair-produced scalar mediators. No significant excess above the Standard Model background is observed. For dark pion proper decay lengths of 20 mm , mediator masses are excluded between 1 and 2 TeV assuming a dark pion mass of 20 GeV . |
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