Evidence for the Higgs-boson Yukawa coupling to tau leptons with the ATLAS detector
Results of a search for H → ττ decays are presented, based on the full set of proton-proton collision data recorded by the ATLAS experiment at the LHC during 2011 and 2012. The data correspond to integrated luminosities of 4.5 fb[superscript −1] and 20.3 fb[superscript −1] at centre-of-mass energies...
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| Format: | Article |
| Language: | en_US |
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Springer-Verlag
2015
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| Online Access: | http://hdl.handle.net/1721.1/97169 https://orcid.org/0000-0002-7586-7253 |
| _version_ | 1811097087663669248 |
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| author | Taylor, Frank E. |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Taylor, Frank E. |
| author_sort | Taylor, Frank E. |
| collection | MIT |
| description | Results of a search for H → ττ decays are presented, based on the full set of proton-proton collision data recorded by the ATLAS experiment at the LHC during 2011 and 2012. The data correspond to integrated luminosities of 4.5 fb[superscript −1] and 20.3 fb[superscript −1] at centre-of-mass energies of √s = 7 TeV and √s = 8 TeV respectively. All combinations of leptonic (τ→ℓν[bar over ν] with ℓ = e, μ) and hadronic (τ → hadrons ν) tau decays are considered. An excess of events over the expected background from other Standard Model processes is found with an observed (expected) significance of 4.5 (3.4) standard deviations. This excess provides evidence for the direct coupling of the recently discovered Higgs boson to fermions. The measured signal strength, normalised to the Standard Model expectation, of μ = 1. 43 {+ 0.43 over − 0.37] is consistent with the predicted Yukawa coupling strength in the Standard Model. |
| first_indexed | 2024-09-23T16:54:08Z |
| format | Article |
| id | mit-1721.1/97169 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T16:54:08Z |
| publishDate | 2015 |
| publisher | Springer-Verlag |
| record_format | dspace |
| spelling | mit-1721.1/971692022-09-29T22:16:03Z Evidence for the Higgs-boson Yukawa coupling to tau leptons with the ATLAS detector Taylor, Frank E. Massachusetts Institute of Technology. Department of Physics Taylor, Frank E. Results of a search for H → ττ decays are presented, based on the full set of proton-proton collision data recorded by the ATLAS experiment at the LHC during 2011 and 2012. The data correspond to integrated luminosities of 4.5 fb[superscript −1] and 20.3 fb[superscript −1] at centre-of-mass energies of √s = 7 TeV and √s = 8 TeV respectively. All combinations of leptonic (τ→ℓν[bar over ν] with ℓ = e, μ) and hadronic (τ → hadrons ν) tau decays are considered. An excess of events over the expected background from other Standard Model processes is found with an observed (expected) significance of 4.5 (3.4) standard deviations. This excess provides evidence for the direct coupling of the recently discovered Higgs boson to fermions. The measured signal strength, normalised to the Standard Model expectation, of μ = 1. 43 {+ 0.43 over − 0.37] is consistent with the predicted Yukawa coupling strength in the Standard Model. United States. Dept. of Energy National Science Foundation (U.S.) Brookhaven National Laboratory 2015-06-02T19:56:57Z 2015-06-02T19:56:57Z 2015-04 2015-01 Article http://purl.org/eprint/type/JournalArticle 1029-8479 1126-6708 http://hdl.handle.net/1721.1/97169 Aad, G., B. Abbott, J. Abdallah, S. Abdel Khalek, O. Abdinov, R. Aben, B. Abi, et al. “Evidence for the Higgs-Boson Yukawa Coupling to Tau Leptons with the ATLAS Detector.” J. High Energ. Phys. 2015, no. 4 (April 2015). © 2015 CERN, for the benefit of the ATLAS Collaboration https://orcid.org/0000-0002-7586-7253 en_US http://dx.doi.org/10.1007/jhep04(2015)117 Journal of High Energy Physics Creative Commons Attribution http://creativecommons.org/licenses/by/4.0/ application/pdf Springer-Verlag Springer-Verlag |
| spellingShingle | Taylor, Frank E. Evidence for the Higgs-boson Yukawa coupling to tau leptons with the ATLAS detector |
| title | Evidence for the Higgs-boson Yukawa coupling to tau leptons with the ATLAS detector |
| title_full | Evidence for the Higgs-boson Yukawa coupling to tau leptons with the ATLAS detector |
| title_fullStr | Evidence for the Higgs-boson Yukawa coupling to tau leptons with the ATLAS detector |
| title_full_unstemmed | Evidence for the Higgs-boson Yukawa coupling to tau leptons with the ATLAS detector |
| title_short | Evidence for the Higgs-boson Yukawa coupling to tau leptons with the ATLAS detector |
| title_sort | evidence for the higgs boson yukawa coupling to tau leptons with the atlas detector |
| url | http://hdl.handle.net/1721.1/97169 https://orcid.org/0000-0002-7586-7253 |
| work_keys_str_mv | AT taylorfranke evidenceforthehiggsbosonyukawacouplingtotauleptonswiththeatlasdetector |