Search for periodic signals in the dielectron and diphoton invariant mass spectra using 139 fb−1 of pp collisions at √s = 13 TeV with the ATLAS detector
Metadatos
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Springer Nature
Materia
Beyond Standard Model Hadron-Hadron Scattering Particle and Resonance Production
Fecha
2023-10-13Referencia bibliográfica
The ATLAS collaboration., Aad, G., Abbott, B. et al. Search for periodic signals in the dielectron and diphoton invariant mass spectra using 139 fb−1 of pp collisions at √s = 13 TeV with the ATLAS detector. J. High Energ. Phys. 2023, 79 (2023). [https://doi.org/10.1007/JHEP10(2023)079]
Patrocinador
EU-ESF; GenT Programmes Generalitat Valenciana, Spain; La Caixa Banking Foundation; PROMETEO; H2020 Marie Skłodowska-Curie Actions MSCA; CERN; European Research Council ERC; European Cooperation in Science and Technology COST; Generalitat de Catalunya; Agencia Nacional de Promoción Científica y Tecnológica ANPCyT; Ministerio de Ciencia e Innovación MICINN; Horizon 2020; European Regional Development Fund ERDF; Agencia Nacional de Investigación y Desarrollo ANID; PIC (Spain)Resumen
A search for physics beyond the Standard Model inducing periodic signals in the dielectron and diphoton invariant mass spectra is presented using 139 fb−1 of √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.