@misc{10481/85307,
year = {2023},
month = {7},
url = {https://hdl.handle.net/10481/85307},
abstract = {This paper presents a search for a new Z′ vector gauge boson with the ATLAS experiment at the Large Hadron Collider using pp collision data collected at 
 = 13 TeV, corresponding to an integrated luminosity of 139 fb−1. The new gauge boson Z′ is predicted by Lμ − Lτ models to address observed phenomena that can not be explained by the Standard Model. The search examines the four-muon (4μ) final state, using a deep learning neural network classifier to separate the Z′ signal from the Standard Model background events. The di-muon invariant masses in the 4μ events are used to extract the Z′ resonance signature. No significant excess of events is observed over the predicted background. Upper limits at a 95% confidence level on the Z′ production cross-section times the decay branching fraction of pp → Z′μμ → 4μ are set from 0.31 to 4.3 fb for the Z′ mass ranging from 5 to 81 GeV. The corresponding common coupling strengths, gZ′, of the Z′ boson to the second and third generation leptons above 0.003 – 0.2 have been excluded.},
organization = {ANPCyT},
organization = {Australian Research Council},
organization = {BMWFW, Austria},
organization = {Austrian Science Fund (FWF)},
organization = {Azerbaijan National Academy of Sciences (ANAS)},
organization = {Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPQ)},
organization = {Natural Sciences and Engineering Research Council of Canada (NSERC)},
organization = {NRC, Canada},
organization = {Canada Foundation for Innovation},
organization = {CERN},
organization = {ANID, Chile},
organization = {Chinese Academy of Sciences},
organization = {Ministry of Science and Technology, China},
organization = {National Natural Science Foundation of China (NSFC)},
organization = {Minciencias, Colombia},
organization = {MEYS CR, Czech Republic},
organization = {National Research Foundation of Korea},
organization = {Danish Natural Science Research Council},
organization = {Centre National de la Recherche Scientifique (CNRS)},
organization = {CEA-DRF/IRFU, France},
organization = {SRNSFG, Georgia},
organization = {Federal Ministry of Education & Research (BMBF)},
organization = {HGF, Germany},
organization = {Max Planck Society},
organization = {GSRI, Greece},
organization = {RGC, China},
organization = {Hong Kong SAR, China},
organization = {Israel Science Foundation},
organization = {Benoziyo Center, Israel},
organization = {Istituto Nazionale di Fisica Nucleare (INFN)},
organization = {Ministry of Education, Culture, Sports, Science and Technology, Japan (MEXT)},
organization = {Ministry of Education, Culture, Sports, Science and Technology, Japan (MEXT)
Japan Society for the Promotion of Science},
organization = {CNRST, Morocco},
organization = {Netherlands Organization for Scientific Research (NWO)
Netherlands Government},
organization = {RCN, Norway},
organization = {MEiN, Poland},
organization = {Fundacao para a Ciencia e a Tecnologia (FCT)},
organization = {MNE/IFA, Romania},
organization = {Ministry of Education, Science & Technological Development, Serbia},
organization = {MSSR, Slovakia},
organization = {Slovenian Research Agency - Slovenia},
organization = {MIZS, Slovenia},
organization = {DSI/NRF, South Africa},
organization = {Spanish Government},
organization = {SRC, Sweden},
organization = {Wallenberg Foundation, Sweden},
organization = {SERI, Switzerland},
organization = {Swiss National Science Foundation (SNSF)},
organization = {Cantons of Bern and Geneva, Switzerland},
organization = {Ministry of Science and Technology, Taiwan},
organization = {TENMAK, Turkiye},
organization = {UK Research & Innovation (UKRI)
Science & Technology Facilities Council (STFC)},
organization = {United States Department of Energy (DOE)},
organization = {National Science Foundation (NSF)},
organization = {European Union (EU)},
organization = {Greek NSRF, Greece},
organization = {BSF-NSF, Israel},
organization = {MINERVA, Israel},
organization = {Norwegian Financial Mechanism, Norway},
organization = {NCN Poland},
organization = {Polish National Agency for Academic Exchange (NAWA)},
organization = {La Caixa Foundation},
organization = {CERCA Programme Generalitat de Catalunya},
organization = {PROMETEO and GenT Programmes Generalitat Valenciana, Spain},
organization = {Goran Gustafssons Stiftelse, Sweden},
organization = {Royal Society
Leverhulme Trust},
publisher = {Springer Nature},
keywords = {Beyond Standard Model},
keywords = {Hadron-Hadron Scattering},
title = {Search for a new Z0 gauge boson in 4μ events with the ATLAS experiment},
doi = {10.1007/JHEP07(2023)090},
author = {Atlas Collaboration and Aguilar Saavedra, Juan Antonio and Rodríguez Chala, Mikael},
}