Combined search for the Standard Model Higgs boson using up to 4.9 fb<sup>-1</sup> of pp collision data at √s = 7 TeV with the ATLAS detector at the LHC
A combined search for the Standard Model Higgs boson with the ATLAS experiment at the LHC using datasets corresponding to integrated luminosities from 1.04 fb<sup>-1</sup> to 4.9 fb<sup>-1</sup> of pp collisions collected at √s = 7 TeV is presented. The Higgs boson mass range...
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| Autores principales: | , , , , |
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| Formato: | Articulo |
| Lenguaje: | Inglés |
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2012
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| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/80255 |
| Aporte de: |
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I19-R120-10915-80255 |
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| record_format |
dspace |
| institution |
Universidad Nacional de La Plata |
| institution_str |
I-19 |
| repository_str |
R-120 |
| collection |
SEDICI (UNLP) |
| language |
Inglés |
| topic |
Ciencias Exactas Física standard model Higgs boson electroweak symmetry breaking la̵rge hadron collider ATLAS detector |
| spellingShingle |
Ciencias Exactas Física standard model Higgs boson electroweak symmetry breaking la̵rge hadron collider ATLAS detector Anduaga, Xabier Sebastián Dova, María Teresa Monticelli, Fernando Gabriel Tripiana, Martín F. The ATLAS Collaboration Combined search for the Standard Model Higgs boson using up to 4.9 fb<sup>-1</sup> of pp collision data at √s = 7 TeV with the ATLAS detector at the LHC |
| topic_facet |
Ciencias Exactas Física standard model Higgs boson electroweak symmetry breaking la̵rge hadron collider ATLAS detector |
| description |
A combined search for the Standard Model Higgs boson with the ATLAS experiment at the LHC using datasets corresponding to integrated luminosities from 1.04 fb<sup>-1</sup> to 4.9 fb<sup>-1</sup> of pp collisions collected at √s = 7 TeV is presented. The Higgs boson mass ranges 112.9–115.5 GeV, 131–238 GeV and 251– 466 GeV are excluded at the 95% confidence level (CL), while the range 124–519 GeV is expected to be excluded in the absence of a signal. An excess of events is observed around m<sub>H</sub> ∼ 126 GeV with a local significance of 3.5 standard deviations (σ). The local significances of H → γγ, H → ZZ(<sup>∗</sup>) →ℓ+ℓ-ℓ'+ℓ'- and H → WW(<sup>∗</sup>) → ℓ+νℓ'-ν¯, the three most sensitive channels in this mass range, are 2.8σ ,2.1σ and 1.4σ , respectively. The global probability for the background to produce such a fluctuation anywhere in the explored Higgs boson mass range 110–600 GeV is estimated to be ∼ 1.4% or, equivalently, 2.2σ. |
| format |
Articulo Articulo |
| author |
Anduaga, Xabier Sebastián Dova, María Teresa Monticelli, Fernando Gabriel Tripiana, Martín F. The ATLAS Collaboration |
| author_facet |
Anduaga, Xabier Sebastián Dova, María Teresa Monticelli, Fernando Gabriel Tripiana, Martín F. The ATLAS Collaboration |
| author_sort |
Anduaga, Xabier Sebastián |
| title |
Combined search for the Standard Model Higgs boson using up to 4.9 fb<sup>-1</sup> of pp collision data at √s = 7 TeV with the ATLAS detector at the LHC |
| title_short |
Combined search for the Standard Model Higgs boson using up to 4.9 fb<sup>-1</sup> of pp collision data at √s = 7 TeV with the ATLAS detector at the LHC |
| title_full |
Combined search for the Standard Model Higgs boson using up to 4.9 fb<sup>-1</sup> of pp collision data at √s = 7 TeV with the ATLAS detector at the LHC |
| title_fullStr |
Combined search for the Standard Model Higgs boson using up to 4.9 fb<sup>-1</sup> of pp collision data at √s = 7 TeV with the ATLAS detector at the LHC |
| title_full_unstemmed |
Combined search for the Standard Model Higgs boson using up to 4.9 fb<sup>-1</sup> of pp collision data at √s = 7 TeV with the ATLAS detector at the LHC |
| title_sort |
combined search for the standard model higgs boson using up to 4.9 fb<sup>-1</sup> of pp collision data at √s = 7 tev with the atlas detector at the lhc |
| publishDate |
2012 |
| url |
http://sedici.unlp.edu.ar/handle/10915/80255 |
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