Search for periodic signals in the dielectron and diphoton invariant mass spectra using 139 fb1^{−1} of pp collisions at s \sqrt{s} = 13 TeV with the ATLAS detector

Collaboration
May 18, 2023
47 pages
Published in:
  • JHEP 10 (2023) 079
  • Published: Oct 13, 2023
e-Print:
Report number:
  • CERN-EP-2023-073
Experiments:

Citations per year

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Abstract: (Springer)
A search for physics beyond the Standard Model inducing periodic signals in the dielectron and diphoton invariant mass spectra is presented using 139 fb1^{−1} of s \sqrt{s} = 13 TeV pp collision data collected by the ATLAS experiment at the LHC. Novel search techniques based on continuous wavelet transforms are used to infer the frequency of periodic signals from the invariant mass spectra and neural network classifiers are used to enhance the sensitivity to periodic resonances. In the absence of a signal, exclusion limits are placed at the 95% confidence level in the two-dimensional parameter space of the clockwork gravity model. Model-independent searches for deviations from the background-only hypothesis are also performed.[graphic not available: see fulltext]
Note:
  • Beyond Standard Model
  • Hadron-Hadron Scattering
  • Particle and Resonance Production
  • p p: scattering
  • p p: colliding beams
  • electron: pair production
  • photon: pair production
  • gravitation: model
  • dimension: 2
  • spin: resonance