A search is performed for a heavy scalar resonance X decaying to a Higgs boson (H) and a Higgs-like scalar boson (Y) in the two bottom quark (H →bb) and four quark(Y →VV →4q) final state, where V denotes a W or Z boson. Masses of the X between 900and 4000GeV and the Y between 60 and 2800GeV are considered. The search is performed in data collected by the CMS experiment at the CERN LHC from proton-proton collisions at13TeV center-of-mass energy, with a data set corresponding to a total integrated luminosity of 138fb−1. It targets the Lorentz-boosted regime, in which the products of the H →bb decay can be reconstructed as a single large-area jet, and those from the Y →VV →4q decay as either one Y →4q or two V →qq jets. Jet identification and mass reconstructionexploit machine-learning tools, including a novel attention-based “particle transformer” for Y →4q identification. No significant excess is observed in the data above the standard model background expectation. Upper limits on the product of production cross section and branching fraction as low as 0.2fb are derived at 95% confidence level for various mass hypotheses. This is the

Search for heavy scalar resonances decaying to Lorentz-boosted Higgs and Higgs-like bosons in the bb4q final state at √s = 13 TeV / Null, N., Hayrapetyan, A., Makarenko, V., Tumasyan, A., Adam, W., Andrejkovic, J.W., Benato, L., Bergauer, T., Dragicevic, M., Giordano, C., Hussain, P.S., Jeitler, M., Krammer, N., Li, A., Liko, D., Matthewman, M., Mikulec, I., Schieck, J., Schöfbeck, R., Schwarz, D., et al.. - In: JOURNAL OF HIGH ENERGY PHYSICS. - ISSN 1029-8479. - 2026:8(2026), pp. 1-39. [10.1007/jhep08(2026)050]

Search for heavy scalar resonances decaying to Lorentz-boosted Higgs and Higgs-like bosons in the bb4q final state at √s = 13 TeV

Cunqueiro Mendez, L.;Del Re, D.;Organtini, G.;Palmeri, N.;Paramatti, R.;Rahatlou, S.;Santanastasio, F.;
2026

Abstract

A search is performed for a heavy scalar resonance X decaying to a Higgs boson (H) and a Higgs-like scalar boson (Y) in the two bottom quark (H →bb) and four quark(Y →VV →4q) final state, where V denotes a W or Z boson. Masses of the X between 900and 4000GeV and the Y between 60 and 2800GeV are considered. The search is performed in data collected by the CMS experiment at the CERN LHC from proton-proton collisions at13TeV center-of-mass energy, with a data set corresponding to a total integrated luminosity of 138fb−1. It targets the Lorentz-boosted regime, in which the products of the H →bb decay can be reconstructed as a single large-area jet, and those from the Y →VV →4q decay as either one Y →4q or two V →qq jets. Jet identification and mass reconstructionexploit machine-learning tools, including a novel attention-based “particle transformer” for Y →4q identification. No significant excess is observed in the data above the standard model background expectation. Upper limits on the product of production cross section and branching fraction as low as 0.2fb are derived at 95% confidence level for various mass hypotheses. This is the
2026
beyond standard model; Hadron-Hadron scattering; Higgs physics
01 Pubblicazione su rivista::01a Articolo in rivista
Search for heavy scalar resonances decaying to Lorentz-boosted Higgs and Higgs-like bosons in the bb4q final state at √s = 13 TeV / Null, N., Hayrapetyan, A., Makarenko, V., Tumasyan, A., Adam, W., Andrejkovic, J.W., Benato, L., Bergauer, T., Dragicevic, M., Giordano, C., Hussain, P.S., Jeitler, M., Krammer, N., Li, A., Liko, D., Matthewman, M., Mikulec, I., Schieck, J., Schöfbeck, R., Schwarz, D., et al.. - In: JOURNAL OF HIGH ENERGY PHYSICS. - ISSN 1029-8479. - 2026:8(2026), pp. 1-39. [10.1007/jhep08(2026)050]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1774344
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