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Author  |
ATLAS Collaboration (Aad, G. et al); Ahuja, S.; Aikot, A.; Cabrera Urban, S.; Cantero, J.; Carrion Martinez, C.; Castillo Gimenez, V.; Chitishvili, M.; Costa, M.J.; Curcio, F.; Didenko, M.; Escobar, C.; Fiorini, L.; Fuster, J.; Garcia, C.; Garcia Navarro, J.E.; Gomez Delegido, A.J.; Gonzalez de la Hoz, S.; Hofer, J.; Jimenez Ortega, M.; Lacasta, C.; Lanzac Berrocal, M.; Marti-Garcia, S.; Martinez Agullo, P.; Melini, D.; Mitsou, V.A.; Monsonis Romero, L.; Moreno Llacer, M.; Munoz Perez, D.; Poveda, J.; Rubio Jimenez, A.; Ruiz-Martinez, A.; Saibel, A.; Salt, J.; Sanchez Sebastian, V.; Senthilkumar, V.; Soldevila, U.; Sanchez, J.; Taylor Vara, R.J.; Torro Pastor, E.; Valero, A.; Valiente Moreno, E.; Valls Ferrer, J.A.; Varriale, L.; Villaplana Perez, M.; Vincent, M.; Vos, M.; Wandall-Christensen, K.; Zakareishvili, T. |
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Title |
Search for decays of the Higgs boson into pair-produced pseudoscalar particles decaying into τ+τ-τ+τ- using pp collisions at √s=13 TeV with the ATLAS detector |
Type |
Journal Article |
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Year |
2026 |
Publication |
New Journal of Physics |
Abbreviated Journal |
New J. Phys. |
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Volume |
28 |
Issue |
6 |
Pages |
063801 - 24pp |
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Keywords |
Higgs boson; pseudoscalar; ATLAS |
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Abstract |
A search for a pair of low-mass pseudoscalars a that promptly decay into tau-leptons is presented using 140 fb(-1) of proton-proton collision data at 13 TeV centre-of-mass energy recorded with the ATLAS detector at the Large Hadron Collider. The result is used to place constraints on exotic decays of the Higgs boson into four tau-leptons, H -> aa -> tau(+)tau(-)tau(+)tau(-). This search focuses on events with either one or two tau-leptons decaying into hadrons and neutrinos, and the remaining three or two tau-leptons decaying into either electron or muon and neutrinos. No significant excess is observed above the expected Standard Model background and upper limits at the 95% confidence level on B(H -> aa -> tau(+)tau(-)tau(+)tau(-)) are set ranging from 0.06 to 0.23, depending on the mass m(a) ranging from 15 to 60 GeV. |
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Address |
[Alley, C. S.; Desai, A. M.; Fewell, M. P.; Gallagher, J.; Grant, C. M.; Green, M. J.; Jackson, P.; Kong, A. X. Y.; Kull, J.; Pandya, H. D.; Purnell, H. I.; Ruggeri, T. A.; Saha, S.; Ting, E. X. L.; White, M. J.] Univ Adelaide, Dept Phys, Adelaide, SA, Australia |
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Publisher |
IOP Publishing Ltd |
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Language |
English |
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Original Title |
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Series Volume |
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Edition |
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ISSN |
1367-2630 |
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Conference |
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Notes |
WOS:001820055900001 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
yes |
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Call Number |
IFIC @ pastor @ |
Serial |
7335 |
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