Observation and measurement of Higgs boson decays to WW∗with the ATLAS detector
- Autores
- Alconada Verzini, María Josefina; Alonso, Francisco; Anduaga, Xabier Sebastián; Arduh, Francisco Anuar; Dova, María Teresa; Monticelli, Fernando Gabriel; Wahlberg, Hernán Pablo; The ATLAS Collaboration
- Año de publicación
- 2015
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- We report the observation of Higgs boson decays to WW∗based on an excess over background of 6.1 standard deviations in the dilepton final state, where the Standard Model expectation is 5.8 standard deviations. Evidence for the vector-boson fusion (VBF) production process is obtained with a significance of 3.2 standard deviations. The results are obtained from a data sample corresponding to an integrated luminosity of 25 fb-1from √s = 7 and 8 TeV pp collisions recorded by the ATLAS detector at the LHC. For a Higgs boson mass of 125.36 GeV, the ratio of the measured value to the expected value of the total production cross section times branching fraction is 1.09+0.16 -0.15(stat)+0.17 -0.14(syst). The corresponding ratios for the gluon fusion and vector-boson fusion production mechanisms are 1.02 ± 0.19(stat)+0.22 -0.18(syst) and 1.27+0.44 -0.40(stat)+0.30 -0.21(syst), respectively. At √s = 8 TeV, the total production cross sections are measured to be σ(gg→H→WW∗)=4.6±0.9(stat)+0.8 -0.7(syst) pb and σ(VBF H → WW∗)=0.51+0.17 -0.15(stat)+0.13 -0.08(syst)pb. The fiducial cross section is determined for the gluon-fusion process in exclusive final states with zero or one associated jet.
La lista completa de autores que integran el documento puede consultarse en el archivo
Instituto de Física La Plata - Materia
-
Física
Collisions
Jets
Proton–proton collisions - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by/3.0/
- Repositorio
.jpg)
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/86801
Ver los metadatos del registro completo
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Observation and measurement of Higgs boson decays to WW∗with the ATLAS detectorAlconada Verzini, María JosefinaAlonso, FranciscoAnduaga, Xabier SebastiánArduh, Francisco AnuarDova, María TeresaMonticelli, Fernando GabrielWahlberg, Hernán PabloThe ATLAS CollaborationFísicaCollisionsJetsProton–proton collisionsWe report the observation of Higgs boson decays to WW∗based on an excess over background of 6.1 standard deviations in the dilepton final state, where the Standard Model expectation is 5.8 standard deviations. Evidence for the vector-boson fusion (VBF) production process is obtained with a significance of 3.2 standard deviations. The results are obtained from a data sample corresponding to an integrated luminosity of 25 fb-1from √s = 7 and 8 TeV pp collisions recorded by the ATLAS detector at the LHC. For a Higgs boson mass of 125.36 GeV, the ratio of the measured value to the expected value of the total production cross section times branching fraction is 1.09+0.16 -0.15(stat)+0.17 -0.14(syst). The corresponding ratios for the gluon fusion and vector-boson fusion production mechanisms are 1.02 ± 0.19(stat)+0.22 -0.18(syst) and 1.27+0.44 -0.40(stat)+0.30 -0.21(syst), respectively. At √s = 8 TeV, the total production cross sections are measured to be σ(gg→H→WW∗)=4.6±0.9(stat)+0.8 -0.7(syst) pb and σ(VBF H → WW∗)=0.51+0.17 -0.15(stat)+0.13 -0.08(syst)pb. The fiducial cross section is determined for the gluon-fusion process in exclusive final states with zero or one associated jet.La lista completa de autores que integran el documento puede consultarse en el archivoInstituto de Física La Plata2015info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://sedici.unlp.edu.ar/handle/10915/86801enginfo:eu-repo/semantics/altIdentifier/issn/1550-7998info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevD.92.012006info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/3.0/Creative Commons Attribution 3.0 Unported (CC BY 3.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-10-15T11:08:50Zoai:sedici.unlp.edu.ar:10915/86801Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-10-15 11:08:50.591SEDICI (UNLP) - Universidad Nacional de La Platafalse |
| dc.title.none.fl_str_mv |
Observation and measurement of Higgs boson decays to WW∗with the ATLAS detector |
| title |
Observation and measurement of Higgs boson decays to WW∗with the ATLAS detector |
| spellingShingle |
Observation and measurement of Higgs boson decays to WW∗with the ATLAS detector Alconada Verzini, María Josefina Física Collisions Jets Proton–proton collisions |
| title_short |
Observation and measurement of Higgs boson decays to WW∗with the ATLAS detector |
| title_full |
Observation and measurement of Higgs boson decays to WW∗with the ATLAS detector |
| title_fullStr |
Observation and measurement of Higgs boson decays to WW∗with the ATLAS detector |
| title_full_unstemmed |
Observation and measurement of Higgs boson decays to WW∗with the ATLAS detector |
| title_sort |
Observation and measurement of Higgs boson decays to WW∗with the ATLAS detector |
| dc.creator.none.fl_str_mv |
Alconada Verzini, María Josefina Alonso, Francisco Anduaga, Xabier Sebastián Arduh, Francisco Anuar Dova, María Teresa Monticelli, Fernando Gabriel Wahlberg, Hernán Pablo The ATLAS Collaboration |
| author |
Alconada Verzini, María Josefina |
| author_facet |
Alconada Verzini, María Josefina Alonso, Francisco Anduaga, Xabier Sebastián Arduh, Francisco Anuar Dova, María Teresa Monticelli, Fernando Gabriel Wahlberg, Hernán Pablo The ATLAS Collaboration |
| author_role |
author |
| author2 |
Alonso, Francisco Anduaga, Xabier Sebastián Arduh, Francisco Anuar Dova, María Teresa Monticelli, Fernando Gabriel Wahlberg, Hernán Pablo The ATLAS Collaboration |
| author2_role |
author author author author author author author |
| dc.subject.none.fl_str_mv |
Física Collisions Jets Proton–proton collisions |
| topic |
Física Collisions Jets Proton–proton collisions |
| dc.description.none.fl_txt_mv |
We report the observation of Higgs boson decays to WW∗based on an excess over background of 6.1 standard deviations in the dilepton final state, where the Standard Model expectation is 5.8 standard deviations. Evidence for the vector-boson fusion (VBF) production process is obtained with a significance of 3.2 standard deviations. The results are obtained from a data sample corresponding to an integrated luminosity of 25 fb-1from √s = 7 and 8 TeV pp collisions recorded by the ATLAS detector at the LHC. For a Higgs boson mass of 125.36 GeV, the ratio of the measured value to the expected value of the total production cross section times branching fraction is 1.09+0.16 -0.15(stat)+0.17 -0.14(syst). The corresponding ratios for the gluon fusion and vector-boson fusion production mechanisms are 1.02 ± 0.19(stat)+0.22 -0.18(syst) and 1.27+0.44 -0.40(stat)+0.30 -0.21(syst), respectively. At √s = 8 TeV, the total production cross sections are measured to be σ(gg→H→WW∗)=4.6±0.9(stat)+0.8 -0.7(syst) pb and σ(VBF H → WW∗)=0.51+0.17 -0.15(stat)+0.13 -0.08(syst)pb. The fiducial cross section is determined for the gluon-fusion process in exclusive final states with zero or one associated jet. La lista completa de autores que integran el documento puede consultarse en el archivo Instituto de Física La Plata |
| description |
We report the observation of Higgs boson decays to WW∗based on an excess over background of 6.1 standard deviations in the dilepton final state, where the Standard Model expectation is 5.8 standard deviations. Evidence for the vector-boson fusion (VBF) production process is obtained with a significance of 3.2 standard deviations. The results are obtained from a data sample corresponding to an integrated luminosity of 25 fb-1from √s = 7 and 8 TeV pp collisions recorded by the ATLAS detector at the LHC. For a Higgs boson mass of 125.36 GeV, the ratio of the measured value to the expected value of the total production cross section times branching fraction is 1.09+0.16 -0.15(stat)+0.17 -0.14(syst). The corresponding ratios for the gluon fusion and vector-boson fusion production mechanisms are 1.02 ± 0.19(stat)+0.22 -0.18(syst) and 1.27+0.44 -0.40(stat)+0.30 -0.21(syst), respectively. At √s = 8 TeV, the total production cross sections are measured to be σ(gg→H→WW∗)=4.6±0.9(stat)+0.8 -0.7(syst) pb and σ(VBF H → WW∗)=0.51+0.17 -0.15(stat)+0.13 -0.08(syst)pb. The fiducial cross section is determined for the gluon-fusion process in exclusive final states with zero or one associated jet. |
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2015 |
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2015 |
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