Search for exclusive Higgs and Z boson decays to ωγ and Higgs boson decays to K⁎γ with the ATLAS detector

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URI: https://hdl.handle.net/10481/91570
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Autor
Atlas Collaboration; Aad, G.; Aguilar Saavedra, Juan Antonio; Rodríguez Chala, Mikael
Editorial
Elsevier
Fecha
2023-10-31
Referencia bibliográfica
The ATLAS Collaboration. Phys. Lett. B 847 (2023) 138292 [https://doi.org/10.1016/j.physletb.2023.138292]
Patrocinador
ANPCyT; YerPhI, Armenia; Australian Research Council; BMWFW; Austrian Science Fund (FWF); Azerbaijan National Academy of Sciences (ANAS); Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPQ); Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP); Natural Sciences and Engineering Research Council of Canada (NSERC); Canada Foundation for Innovation; National Natural Science Foundation of China (NSFC); MEYS CR, Czech Republic; DNRF; Danish Natural Science Research Council; Centre National de la Recherche Scientifique (CNRS); CEA-DRF/IRFU, France; Federal Ministry of Education & Research (BMBF); Max Planck Society; RGC and Hong Kong SAR, China; Israel Science Foundation; Istituto Nazionale di Fisica Nucleare (INFN); Ministry of Education, Culture, Sports, Science and Technology, Japan (MEXT); Ministry of Education, Culture, Sports, Science and Technology, Japan (MEXT) Japan Society for the Promotion of Science; CNRST, Morocco; RCN, Norway; MEiN, Poland; Fundacao para a Ciencia e a Tecnologia (FCT); MNE/IFA, Romania; Ministry of Education, Science & Technological Development, Serbia; MSSR, Slovakia; Slovenian Research Agency - Slovenia; MIZS, Slovenia; Spanish Government; Wallenberg Foundation, Sweden; Swiss National Science Foundation (SNSF); Ministry of Science and Technology, Taiwan; United States Department of Energy (DOE); National Science Foundation (NSF); BCKDF; CRC, Canada PRIMUS 21/SCI/017 UNCE SCI/013; Czech Republic Government; European Research Council (ERC); European Union (EU); European Union (EU) Marie Curie Actions; Agence Nationale de la Recherche (ANR); German Research Foundation (DFG); Alexander von Humboldt Foundation; Greek NSRF, Greece; BSF-NSF; NCN; La Caixa Foundation; CERCA Programme Generalitat de Catalunya; PROMETEO; Center for Forestry Research & Experimentation (CIEF); Goran Gustafssons Stiftelse, Sweden; Royal Society; Leverhulme Trust; Netherlands Organization for Scientific Research (NWO) Netherlands Government
Resumen
Searches for the exclusive decays of the Higgs boson to an ω meson and a photon or a ⁎ meson and a photon can probe flavour-conserving and flavour-violating Higgs boson couplings to light quarks, respectively. Searches for these decays, along with the analogous Z boson decay to an ω meson and a photon, are performed with a pp collision data sample corresponding to integrated luminosities of up to 134 fb−1 collected at TeV with the ATLAS detector at the CERN Large Hadron Collider. The obtained 95% confidence-level upper limits on the respective branching fractions are , ⁎ and . The limits for and are 370 times and 140 times the Standard Model expected values, respectively. The result for corresponds to a two-orders-of-magnitude improvement over the limit obtained by the DELPHI experiment at LEP.
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Atribución 4.0 Internacional
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