Search for a new heavy scalar particle decaying into a Higgs boson and a new scalar singlet in final states with one or two light leptons and a pair of τ-leptons with the ATLAS detector

AAD, G., ABBOTT, B., ABELING, K., CHUDOBA, J., FEDERIČOVÁ, P., HEJBAL, J., JAČKA, P., KEPKA, O., KROLL, J., KUPČO, A., LATOŇOVÁ, V., LOKAJÍČEK, M., LYSÁK, R., MARČIŠOVSKÝ, M., MIKEŠTÍKOVÁ, M., NĚMEČEK, S., ŠÍCHO, P., STAROBA, P., SVATOŠ, M., TAŠEVSKÝ, M. Search for a new heavy scalar particle decaying into a Higgs boson and a new scalar singlet in final states with one or two light leptons and a pair of τ-leptons with the ATLAS detector. Journal of High Energy Physics. 2023, 2023(10), 009. ISSN 1029-8479. E-ISSN 1029-8479. Available: doi: 10.1007/JHEP10(2023)009.