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Search for Magnetic Monopole Pair Production in Ultraperipheral (Formula presented) Collisions at (Formula presented) with the ATLAS Detector at the LHC

Gallagher, J. ; Åkesson, T.P.A. LU orcid ; Astrand, K.S.V. LU ; Doglioni, C. LU ; Ekman, P.A. LU orcid ; Hedberg, V. LU ; Herde, H. LU orcid ; Konya, B. LU ; Lytken, E. LU orcid and Poettgen, R. LU orcid , et al. (2025) In Physical Review Letters 134(6).
Abstract
This Letter presents a search for highly ionizing magnetic monopoles in (Formula presented) of ultraperipheral (Formula presented) collision data at (Formula presented) 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,... (More)
This Letter presents a search for highly ionizing magnetic monopoles in (Formula presented) of ultraperipheral (Formula presented) collision data at (Formula presented) 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. © 2025 CERN, for the ATLAS Collaboration. (Less)
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author collaboration
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Particle detectors, Photons, Silicon detectors, ATLAS detectors, Data driven technique, Heavy-ion data, Highly ionizing particles, Magnetic charges, Magnetic monopoles, Nonperturbative, Pair production, Property, Semiclassical model, Heavy ions
in
Physical Review Letters
volume
134
issue
6
article number
061803
publisher
American Physical Society
external identifiers
  • scopus:85219750837
  • pmid:40021189
ISSN
0031-9007
DOI
10.1103/PhysRevLett.134.061803
language
English
LU publication?
yes
id
8c262969-75b7-4a6f-ae06-7d3a312aaec6
date added to LUP
2025-12-17 13:53:04
date last changed
2025-12-18 03:47:39
@article{8c262969-75b7-4a6f-ae06-7d3a312aaec6,
  abstract     = {{This Letter presents a search for highly ionizing magnetic monopoles in (Formula presented) of ultraperipheral (Formula presented) collision data at (Formula presented) 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. © 2025 CERN, for the ATLAS Collaboration.}},
  author       = {{Gallagher, J. and Åkesson, T.P.A. and Astrand, K.S.V. and Doglioni, C. and Ekman, P.A. and Hedberg, V. and Herde, H. and Konya, B. and Lytken, E. and Poettgen, R. and Smirnova, O. and Wallin, E.J. and Zwalinski, L.}},
  issn         = {{0031-9007}},
  keywords     = {{Particle detectors; Photons; Silicon detectors; ATLAS detectors; Data driven technique; Heavy-ion data; Highly ionizing particles; Magnetic charges; Magnetic monopoles; Nonperturbative; Pair production; Property; Semiclassical model; Heavy ions}},
  language     = {{eng}},
  number       = {{6}},
  publisher    = {{American Physical Society}},
  series       = {{Physical Review Letters}},
  title        = {{Search for Magnetic Monopole Pair Production in Ultraperipheral (Formula presented) Collisions at (Formula presented) with the ATLAS Detector at the LHC}},
  url          = {{http://dx.doi.org/10.1103/PhysRevLett.134.061803}},
  doi          = {{10.1103/PhysRevLett.134.061803}},
  volume       = {{134}},
  year         = {{2025}},
}