Search for emerging jets in pp collisions at s=13TeV with the ATLAS experiment

The ATLAS collaboration

doi:10.1140/epjc/s10052-026-15693-1

Search for emerging jets in pp collisions at s=13TeV with the ATLAS experiment

The ATLAS collaboration

Department of Physics
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Research output: Contribution to journal › Article › peer-review

Abstract

A search is presented for emerging jets using 140fb-1 of proton–proton collision data at s=13TeV, 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 20mm, mediator masses are excluded between 1 and 2TeV assuming a dark pion mass of 20GeV.

Original language	English
Article number	808
Journal	European Physical Journal C
Volume	86
Issue number	7
DOIs	https://doi.org/10.1140/epjc/s10052-026-15693-1
State	Published - Jul 2026
Externally published	Yes

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10.1140/epjc/s10052-026-15693-1

Cite this

@article{332cd8aa12474862a6fc39a3c6c1b5a9,

title = "Search for emerging jets in pp collisions at s=13TeV with the ATLAS experiment",

abstract = "A search is presented for emerging jets using 140fb-1 of proton{\textendash}proton collision data at s=13TeV, 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 20mm, mediator masses are excluded between 1 and 2TeV assuming a dark pion mass of 20GeV.",

author = "\{The ATLAS collaboration\} and L. Zwalinski and O. Zormpa and Zorbas, \{T. G.\} and A. Zografos and K. Zoch and A. Zoccoli and L. {\v Z}ivkovi{\'c} and M. Ziolkowski and J. Zinsser and Zimine, \{N. I.\} and K. Zhukov and X. Zhuang and Y. Zhu and Y. Zhu and X. Zhu and J. Zhu and Y. Zhou and Y. Zhou and Y. Zhou and N. Zhou and H. Zhou and B. Zhou and B. Zhou and D. Zhong and Z. Zheng and X. Zheng and K. Zheng and J. Zheng and A. Zhemchugov and Z. Zhao and Z. Zhao and Y. Zhao and T. Zhao and H. Zhao and Z. Zhang and Z. Zhang and Z. Zhang and Y. Zhang and Y. Zhang and Y. Zhang and Y. Zhang and T. Zhang and S. Zhang and R. Zhang and P. Zhang and L. Zhang and L. Zhang and J. Zhang and E. Kourlitis and L. Heinrich",

note = "Publisher Copyright: {\textcopyright} CERN for the benefit of the ATLAS Collaboration 2026.",

year = "2026",

month = jul,

doi = "10.1140/epjc/s10052-026-15693-1",

language = "English",

volume = "86",

journal = "European Physical Journal C",

issn = "1434-6044",

publisher = "Springer Nature",

number = "7",

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T1 - Search for emerging jets in pp collisions at s=13TeV with the ATLAS experiment

AU - The ATLAS collaboration

AU - Zwalinski, L.

AU - Zormpa, O.

AU - Zorbas, T. G.

AU - Zografos, A.

AU - Zoch, K.

AU - Zoccoli, A.

AU - Živković, L.

AU - Ziolkowski, M.

AU - Zinsser, J.

AU - Zimine, N. I.

AU - Zhukov, K.

AU - Zhuang, X.

AU - Zhu, Y.

AU - Zhu, X.

AU - Zhu, J.

AU - Zhou, Y.

AU - Zhou, N.

AU - Zhou, H.

AU - Zhou, B.

AU - Zhong, D.

AU - Zheng, Z.

AU - Zheng, X.

AU - Zheng, K.

AU - Zheng, J.

AU - Zhemchugov, A.

AU - Zhao, Z.

AU - Zhao, Y.

AU - Zhao, T.

AU - Zhao, H.

AU - Zhang, Z.

AU - Zhang, Y.

AU - Zhang, T.

AU - Zhang, S.

AU - Zhang, R.

AU - Zhang, P.

AU - Zhang, L.

AU - Zhang, J.

AU - Kourlitis, E.

AU - Heinrich, L.

PY - 2026/7

Y1 - 2026/7

N2 - A search is presented for emerging jets using 140fb-1 of proton–proton collision data at s=13TeV, 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 20mm, mediator masses are excluded between 1 and 2TeV assuming a dark pion mass of 20GeV.

AB - A search is presented for emerging jets using 140fb-1 of proton–proton collision data at s=13TeV, 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 20mm, mediator masses are excluded between 1 and 2TeV assuming a dark pion mass of 20GeV.

UR - https://www.scopus.com/pages/publications/105045116425

U2 - 10.1140/epjc/s10052-026-15693-1

DO - 10.1140/epjc/s10052-026-15693-1

M3 - Article

AN - SCOPUS:105045116425

SN - 1434-6044

VL - 86

JO - European Physical Journal C

JF - European Physical Journal C

IS - 7

M1 - 808

ER -

Search for emerging jets in pp collisions at s=13TeV with the ATLAS experiment

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