Abstract:
The observation of Higgs boson production in association with a top quark pair (tt¯H), based on the analysis of proton–proton collision data at a centre-of-mass energy of 13 TeV recorded with the ATLAS detector at the Large Hadron Collider, is presented. Using data corresponding to integrated luminosities of up to 79.8 fb −1 , and considering Higgs boson decays into bb¯, WW ⁎ , τ + τ − , γγ, and ZZ ⁎ , the observed significance is 5.8 standard deviations, compared to an expectation of 4.9 standard deviations. Combined with the tt¯H searches using a dataset corresponding to integrated luminosities of 4.5 fb −1 at 7 TeV and 20.3 fb −1 at 8 TeV, the observed (expected) significance is 6.3 (5.1) standard deviations. Assuming Standard Model branching fractions, the total tt¯H production cross section at 13 TeV is measured to be 670 ± 90 (stat.) −100 +110 (syst.) fb, in agreement with the Standard Model prediction. © 2018 The Author(s)
Registro:
Documento: |
Artículo
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Título: | Observation of Higgs boson production in association with a top quark pair at the LHC with the ATLAS detector |
Autor: | Aaboud, M. et al.
Este artículo contiene 2920 autores, consultelos en el artículo en formato pdf.
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Filiación: |
Este artículo contiene 2920 autores con sus filiaciones, consultelas en el artículo en formato pdf.
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Año: | 2018
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Volumen: | 784
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Página de inicio: | 173
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Página de fin: | 191
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DOI: |
http://dx.doi.org/10.1016/j.physletb.2018.07.035 |
Título revista: | Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
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Título revista abreviado: | Phys Lett Sect B Nucl Elem Part High-Energy Phys
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ISSN: | 03702693
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CODEN: | PYLBA
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Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03702693_v784_n_p173_Aaboud |
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Citas:
---------- APA ----------
(2018)
. Observation of Higgs boson production in association with a top quark pair at the LHC with the ATLAS detector. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 784, 173-191.
http://dx.doi.org/10.1016/j.physletb.2018.07.035---------- CHICAGO ----------
Aaboud, M.
"Observation of Higgs boson production in association with a top quark pair at the LHC with the ATLAS detector"
. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics 784
(2018) : 173-191.
http://dx.doi.org/10.1016/j.physletb.2018.07.035---------- MLA ----------
Aaboud, M.
"Observation of Higgs boson production in association with a top quark pair at the LHC with the ATLAS detector"
. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 784, 2018, pp. 173-191.
http://dx.doi.org/10.1016/j.physletb.2018.07.035---------- VANCOUVER ----------
Aaboud, M. Observation of Higgs boson production in association with a top quark pair at the LHC with the ATLAS detector. Phys Lett Sect B Nucl Elem Part High-Energy Phys. 2018;784:173-191.
http://dx.doi.org/10.1016/j.physletb.2018.07.035