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    Abhayasinghe, D.  K.; Asada, H.; Balz, J.; Basan, A.; Bechtle, P.; Berthold, A.; Bertram, I.  A.; Billoud, T.  R. V.; Braren, F.; Bressler, S.; Buat, Q.; Cabrera Urbán, S.; Casado, M.  P.; Cattai, A.; Cerutti, F.; Chan, J.; Chan, W.  S.; Chapman, J.  D.; Ciocio, A.; De Pedis, D.; De Sanctis, U.; Doria, A.; Dülsen, C.; Erdmann, J.; Fiorini, L.; Franco, L.; Gagliardi, G.; Gazis, E.  N.; Geralis, T.; Giagu, S.; Glasman, C.; Gonzalez Renteria, C.; Guan, W.; Guindon, S.; Hernández Jiménez, Y.; Hill, K.  K.; Hiti, B.; Jacka, P.; Jagfeld, C.  S.; Janas, K.  W.; Javadov, N.; Jin, S.; Jivan, H.; Jones, R.  W. L.; Khanov, A.; Khoo, T.  J.; Kimura, N.; Kirchmeier, D.; Köneke, K.; Kortner, S.; Krasnopevtsev, D.; Kulchitsky, Y.; Laudrain, A.; Manzoni, S.; Marchiori, G.; Marcisovsky, M.; Middleton, R.  P.; Nachman, B.  P.; Neundorf, J.; Ngair, B.; Ntekas, K.; Olszowska, J.; Orlando, N.; O’Shea, V.; Ozturk, S.; Panduro Vazquez, J.  G.; Parzefall, U.; Pereira Sanchez, L.; Puzo, P.; Rebuzzi, D.  M.; Rinaldi, L.; Roy, A.; Saraiva, J.  G.; Schott, M.; Shulga, E.; Siegert, F.; Simoniello, R.; Sioli, M.; Skaf, A.; Sottocornola, S.; Spieker, T.  M.; Stamas, B.  L.; Stapf, B.; Strandberg, J.; Strauss, M.; Taylor, W.; Testa, M.; Troncon, C.; Uchida, K.; Varni, C.; Wang, T.; Webb, A.  F.; Wolters, H.; Xu, Z.; Yan, S.; Yeletskikh, I.; Zaffaroni, E.; Zerradi, S.; Zhang, M.; Zhang, X.

    Physical review. D, 01/2022, Letnik: 105, Številka: 1
    Journal Article

    A search optimized for new heavy particles decaying to two b-quarks and produced in association with additional b-quarks is reported. The sensitivity is improved by b-tagging at least one lower-pT jet in addition to the two highest-pT jets. The data used in this search correspond to an integrated luminosity of 103 fb–1 collected with a dedicated trijet trigger during the 2017 and 2018 √s = 13 TeV proton–proton collision runs with the ATLAS detector at the LHC. The search looks for resonant peaks in the b-tagged dijet invariant mass spectrum over a smoothly falling background. The background is estimated with an innovative data-driven method based on orthonormal functions. The observed b-tagged dijet invariant mass spectrum is compatible with the background-only hypothesis. Upper limits at 95% confidence level on a heavy vector-boson production cross section times branching ratio to a pair of b-quarks are derived.