A combination of searches for a new resonance decaying into a Higgs boson pair is presented, using up to 139  fb^{-1} of pp collision data at sqrt[s]=13  TeV recorded with the ATLAS detector at the LHC. The combination includes searches performed in three decay channels: bb[over ¯]bb[over ¯], bb[over ¯]τ^{+}τ^{-}, and bb[over ¯]γγ. No excess above the expected Standard Model background is observed and upper limits are set at the 95% confidence level on the production cross section of Higgs boson pairs originating from the decay of a narrow scalar resonance with mass in the range 251 GeV-5 TeV. The observed (expected) limits are in the range 0.96-600 fb (1.2-390 fb). The limits are interpreted in the type-I two-Higgs-doublet model and the minimal supersymmetric standard model, and constrain parameter space not previously excluded by other searches.

Aad, G., Aakvaag, E., Abbott, B., Abeling, K., Abicht, N. ., Abidi, S. ., et al. (2024). Combination of Searches for Resonant Higgs Boson Pair Production Using pp Collisions at sqrt(s)=13 TeV with the ATLAS Detector. PHYSICAL REVIEW LETTERS, 132(23) [10.1103/physrevlett.132.231801].

Combination of Searches for Resonant Higgs Boson Pair Production Using pp Collisions at sqrt(s)=13 TeV with the ATLAS Detector

Cerri, A.;
2024-01-01

Abstract

A combination of searches for a new resonance decaying into a Higgs boson pair is presented, using up to 139  fb^{-1} of pp collision data at sqrt[s]=13  TeV recorded with the ATLAS detector at the LHC. The combination includes searches performed in three decay channels: bb[over ¯]bb[over ¯], bb[over ¯]τ^{+}τ^{-}, and bb[over ¯]γγ. No excess above the expected Standard Model background is observed and upper limits are set at the 95% confidence level on the production cross section of Higgs boson pairs originating from the decay of a narrow scalar resonance with mass in the range 251 GeV-5 TeV. The observed (expected) limits are in the range 0.96-600 fb (1.2-390 fb). The limits are interpreted in the type-I two-Higgs-doublet model and the minimal supersymmetric standard model, and constrain parameter space not previously excluded by other searches.
2024
Aad, G., Aakvaag, E., Abbott, B., Abeling, K., Abicht, N. ., Abidi, S. ., et al. (2024). Combination of Searches for Resonant Higgs Boson Pair Production Using pp Collisions at sqrt(s)=13 TeV with the ATLAS Detector. PHYSICAL REVIEW LETTERS, 132(23) [10.1103/physrevlett.132.231801].
File in questo prodotto:
File Dimensione Formato  
PhysRevLett.132.231801_compressed.pdf

accesso aperto

Tipologia: PDF editoriale
Licenza: Creative commons
Dimensione 1.14 MB
Formato Adobe PDF
1.14 MB Adobe PDF Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11365/1269935