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tt̄H Coupling Measurement with the ATLAS Detector at the LHC
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| Zeitschriftentitel: | EPJ Web of Conferences |
|---|---|
| Personen und Körperschaften: | |
| In: | EPJ Web of Conferences, 182, 2018, S. 02052 |
| Format: | E-Article |
| Sprache: | Unbestimmt |
| veröffentlicht: |
EDP Sciences
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| Schlagwörter: |
| author_facet |
Hadef, Asma Hadef, Asma |
|---|---|
| author |
Hadef, Asma |
| spellingShingle |
Hadef, Asma EPJ Web of Conferences tt̄H Coupling Measurement with the ATLAS Detector at the LHC General Earth and Planetary Sciences General Engineering General Environmental Science |
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hadef, asma |
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Hadef, Asma 2100-014X EDP Sciences General Earth and Planetary Sciences General Engineering General Environmental Science http://dx.doi.org/10.1051/epjconf/201818202052 <jats:p>The Higgs boson was discovered on the 4th of July 2012 with a mass around 125 GeV by ATLAS and CMS experiments at LHC. Determining the Higgs properties (production and decay modes, couplings,...) is an important part of the high-energy physics programme in this decade. A search for the Higgs boson production in association with a top quark pair (<jats:italic>tt̄H</jats:italic>) at ATLAS [1] is summarized in this paper at an unexplored center-of-mass energy of 13 TeV, which could allow a first direct measurement of the top quark Yukawa coupling and could reveal new physics. The <jats:italic>tt̄H</jats:italic> analysis in ATLAS is divided into 3 channels according to the Higgs decay modes: H → Hadrons, H → Leptons and H → Photons. The best-fit value of the ratio of observed and Standard Model cross sections of <jats:italic>tt̄H</jats:italic> production process, using 2015-2016 data and combining all <jats:italic>tt̄H</jats:italic> final states, is 1:8±0:7, corresponds to 2:8σ (1:8σ) observed (expected) significance.</jats:p> <i>tt̄H</i> Coupling Measurement with the ATLAS Detector at the LHC EPJ Web of Conferences |
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| title |
tt̄H Coupling Measurement with the ATLAS Detector at the LHC |
| title_unstemmed |
tt̄H Coupling Measurement with the ATLAS Detector at the LHC |
| title_full |
tt̄H Coupling Measurement with the ATLAS Detector at the LHC |
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tt̄H Coupling Measurement with the ATLAS Detector at the LHC |
| title_full_unstemmed |
tt̄H Coupling Measurement with the ATLAS Detector at the LHC |
| title_short |
tt̄H Coupling Measurement with the ATLAS Detector at the LHC |
| title_sort |
<i>tt̄h</i> coupling measurement with the atlas detector at the lhc |
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General Earth and Planetary Sciences General Engineering General Environmental Science |
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http://dx.doi.org/10.1051/epjconf/201818202052 |
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2018 |
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<jats:p>The Higgs boson was discovered on the 4th of July 2012 with a mass around 125 GeV by ATLAS and CMS experiments at LHC. Determining the Higgs properties (production and decay modes, couplings,...) is an important part of the high-energy physics programme in this decade. A search for the Higgs boson production in association with a top quark pair (<jats:italic>tt̄H</jats:italic>) at ATLAS [1] is summarized in this paper at an unexplored center-of-mass energy of 13 TeV, which could allow a first direct measurement of the top quark Yukawa coupling and could reveal new physics. The <jats:italic>tt̄H</jats:italic> analysis in ATLAS is divided into 3 channels according to the Higgs decay modes: H → Hadrons, H → Leptons and H → Photons. The best-fit value of the ratio of observed and Standard Model cross sections of <jats:italic>tt̄H</jats:italic> production process, using 2015-2016 data and combining all <jats:italic>tt̄H</jats:italic> final states, is 1:8±0:7, corresponds to 2:8σ (1:8σ) observed (expected) significance.</jats:p> |
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| description | <jats:p>The Higgs boson was discovered on the 4th of July 2012 with a mass around 125 GeV by ATLAS and CMS experiments at LHC. Determining the Higgs properties (production and decay modes, couplings,...) is an important part of the high-energy physics programme in this decade. A search for the Higgs boson production in association with a top quark pair (<jats:italic>tt̄H</jats:italic>) at ATLAS [1] is summarized in this paper at an unexplored center-of-mass energy of 13 TeV, which could allow a first direct measurement of the top quark Yukawa coupling and could reveal new physics. The <jats:italic>tt̄H</jats:italic> analysis in ATLAS is divided into 3 channels according to the Higgs decay modes: H → Hadrons, H → Leptons and H → Photons. The best-fit value of the ratio of observed and Standard Model cross sections of <jats:italic>tt̄H</jats:italic> production process, using 2015-2016 data and combining all <jats:italic>tt̄H</jats:italic> final states, is 1:8±0:7, corresponds to 2:8σ (1:8σ) observed (expected) significance.</jats:p> |
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| spelling | Hadef, Asma 2100-014X EDP Sciences General Earth and Planetary Sciences General Engineering General Environmental Science http://dx.doi.org/10.1051/epjconf/201818202052 <jats:p>The Higgs boson was discovered on the 4th of July 2012 with a mass around 125 GeV by ATLAS and CMS experiments at LHC. Determining the Higgs properties (production and decay modes, couplings,...) is an important part of the high-energy physics programme in this decade. A search for the Higgs boson production in association with a top quark pair (<jats:italic>tt̄H</jats:italic>) at ATLAS [1] is summarized in this paper at an unexplored center-of-mass energy of 13 TeV, which could allow a first direct measurement of the top quark Yukawa coupling and could reveal new physics. The <jats:italic>tt̄H</jats:italic> analysis in ATLAS is divided into 3 channels according to the Higgs decay modes: H → Hadrons, H → Leptons and H → Photons. The best-fit value of the ratio of observed and Standard Model cross sections of <jats:italic>tt̄H</jats:italic> production process, using 2015-2016 data and combining all <jats:italic>tt̄H</jats:italic> final states, is 1:8±0:7, corresponds to 2:8σ (1:8σ) observed (expected) significance.</jats:p> <i>tt̄H</i> Coupling Measurement with the ATLAS Detector at the LHC EPJ Web of Conferences |
| spellingShingle | Hadef, Asma, EPJ Web of Conferences, tt̄H Coupling Measurement with the ATLAS Detector at the LHC, General Earth and Planetary Sciences, General Engineering, General Environmental Science |
| title | tt̄H Coupling Measurement with the ATLAS Detector at the LHC |
| title_full | tt̄H Coupling Measurement with the ATLAS Detector at the LHC |
| title_fullStr | tt̄H Coupling Measurement with the ATLAS Detector at the LHC |
| title_full_unstemmed | tt̄H Coupling Measurement with the ATLAS Detector at the LHC |
| title_short | tt̄H Coupling Measurement with the ATLAS Detector at the LHC |
| title_sort | <i>tt̄h</i> coupling measurement with the atlas detector at the lhc |
| title_unstemmed | tt̄H Coupling Measurement with the ATLAS Detector at the LHC |
| topic | General Earth and Planetary Sciences, General Engineering, General Environmental Science |
| url | http://dx.doi.org/10.1051/epjconf/201818202052 |