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Combination of Searches for Higgs Boson Pair Production in pp Collisions at sqrt[s]=13  TeV with the ATLAS Detector.

Publication ,  Journal Article
Aad, G; Aakvaag, E; Abbott, B; Abdelhameed, S; Abeling, K; Abicht, NJ; Abidi, SH; Aboelela, M; Aboulhorma, A; Abramowicz, H; Abreu, H; Adye, T ...
Published in: Physical review letters
September 2024

This Letter presents results from a combination of searches for Higgs boson pair production using 126-140  fb^{-1} of proton-proton collision data at sqrt[s]=13  TeV recorded with the ATLAS detector. At 95% confidence level (CL), the upper limit on the production rate is 2.9 times the standard model (SM) prediction, with an expected limit of 2.4 assuming no Higgs boson pair production. Constraints on the Higgs boson self-coupling modifier κ_{λ}=λ_{HHH}/λ_{HHH}^{SM}, and the quartic HHVV coupling modifier κ_{2V}=g_{HHVV}/g_{HHVV}^{SM}, are derived individually, fixing the other parameter to its SM value. The observed 95% CL intervals are -1.2<κ_{λ}<7.2 and 0.6<κ_{2V}<1.5, respectively, while the expected intervals are -1.6<κ_{λ}<7.2 and 0.4<κ_{2V}<1.6 in the SM case. Constraints obtained for several interaction parameters within Higgs effective field theory are the strongest to date, offering insights into potential deviations from SM predictions.

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Published In

Physical review letters

DOI

EISSN

1079-7114

ISSN

0031-9007

Publication Date

September 2024

Volume

133

Issue

10

Start / End Page

101801

Related Subject Headings

  • General Physics
  • 51 Physical sciences
  • 49 Mathematical sciences
  • 40 Engineering
  • 09 Engineering
  • 02 Physical Sciences
  • 01 Mathematical Sciences
 

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Aad, G., Aakvaag, E., Abbott, B., Abdelhameed, S., Abeling, K., Abicht, N. J., … Clark, A. (2024). Combination of Searches for Higgs Boson Pair Production in pp Collisions at sqrt[s]=13  TeV with the ATLAS Detector. Physical Review Letters, 133(10), 101801. https://doi.org/10.1103/physrevlett.133.101801
Aad, G., E. Aakvaag, B. Abbott, S. Abdelhameed, K. Abeling, N. J. Abicht, S. H. Abidi, et al. “Combination of Searches for Higgs Boson Pair Production in pp Collisions at sqrt[s]=13  TeV with the ATLAS Detector.Physical Review Letters 133, no. 10 (September 2024): 101801. https://doi.org/10.1103/physrevlett.133.101801.
Aad G, Aakvaag E, Abbott B, Abdelhameed S, Abeling K, Abicht NJ, et al. Combination of Searches for Higgs Boson Pair Production in pp Collisions at sqrt[s]=13  TeV with the ATLAS Detector. Physical review letters. 2024 Sep;133(10):101801.
Aad, G., et al. “Combination of Searches for Higgs Boson Pair Production in pp Collisions at sqrt[s]=13  TeV with the ATLAS Detector.Physical Review Letters, vol. 133, no. 10, Sept. 2024, p. 101801. Epmc, doi:10.1103/physrevlett.133.101801.
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Combination of Searches for Higgs Boson Pair Production in pp Collisions at sqrt[s]=13  TeV with the ATLAS Detector. Physical review letters. 2024 Sep;133(10):101801.

Published In

Physical review letters

DOI

EISSN

1079-7114

ISSN

0031-9007

Publication Date

September 2024

Volume

133

Issue

10

Start / End Page

101801

Related Subject Headings

  • General Physics
  • 51 Physical sciences
  • 49 Mathematical sciences
  • 40 Engineering
  • 09 Engineering
  • 02 Physical Sciences
  • 01 Mathematical Sciences