Search for periodic signals in the dielectron and diphoton invariant mass spectra using 139 fb.sup.−1./sup. of pp collisions at √s = 13 TeV with the ATLAS detector

0579060 - FZÚ 2024 RIV DE eng J - Journal Article
Aad, G. - Abbott, B. - Abeling, K. - Chudoba, Jiří - Federičová, Pavla - Hejbal, Jiří - Jačka, Petr - Kepka, Oldřich - Kroll, Jiří - Kupčo, Alexander - Latoňová, Věra - Lokajíček, Miloš - Lysák, Roman - Marčišovský, Michal - Mikeštíková, Marcela - Němeček, Stanislav - Šícho, Petr - Staroba, Pavel - Svatoš, Michal - Taševský, Marek … Total 2935 authors
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.
Journal of High Energy Physics. Roč. 2023, č. 10 (2023), č. článku 079. ISSN 1029-8479. E-ISSN 1029-8479
Research Infrastructure: CERN-CZ III - 90240
Institutional support: RVO:68378271
Keywords : photon: pair production * gravitation: model * dimension: 2 * spin: resonance
OECD category: Particles and field physics
Impact factor: 5.4, year: 2022
Method of publishing: Open access

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.
Permanent Link: https://hdl.handle.net/11104/0347936