Evidence for the spin-0 nature of the Higgs boson using ATLAS data
- Autores
- Anduaga, Xabier Sebastián; Dova, María Teresa; Monticelli, Fernando Gabriel; Tripiana, Martín F.; The ATLAS Collaboration
- Año de publicación
- 2013
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Studies of the spin and parity quantum numbers of the Higgs boson are presented, based on proton–proton collision data collected by the ATLAS experiment at the LHC. The Standard Model spin–parity hypothesis is compared with alternative hypotheses using the Higgs boson decays H→ γγ, and , as well as the combination of these channels. The analysed dataset corresponds to an integrated luminosity of 20.7 fb−1 collected at a centre–of–mass energy of √ s = 8 TeV. For the decay mode the dataset corresponding to an integrated luminosity of 4.6 fb−1 collected at √ s = 7 TeV is added. The data are compatible with the Standard Model quantum numbers for the Higgs boson, whereas all alternative hypotheses studied in this letter, namely some specific models, are excluded at confidence levels above 97.8%. This exclusion holds independently of the assumptions on the coupling strengths to the Standard Model particles and in the case of the model, of the relative fractions of gluon–fusion and quark–antiquark production of the spin-2 particle. The data thus provide evidence for the spin-0 nature of the Higgs boson, with positive parity being strongly preferred.
Facultad de Ciencias Exactas - Materia
-
Ciencias Exactas
spin-0 nature
Higgs boson
ATLAS data
Física - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by/4.0/
- Repositorio
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/77572
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Evidence for the spin-0 nature of the Higgs boson using ATLAS dataAnduaga, Xabier SebastiánDova, María TeresaMonticelli, Fernando GabrielTripiana, Martín F.The ATLAS CollaborationCiencias Exactasspin-0 natureHiggs bosonATLAS dataFísicaStudies of the spin and parity quantum numbers of the Higgs boson are presented, based on proton–proton collision data collected by the ATLAS experiment at the LHC. The Standard Model spin–parity <math xmlns="http://www.w3.org/1998/Math/MathML"><msup is="true"><mrow is="true"><mi is="true">J</mi></mrow><mrow is="true"><mi is="true">P</mi></mrow></msup><mo is="true">=</mo><msup is="true"><mrow is="true"><mn is="true">0</mn></mrow><mrow is="true"><mo is="true">+</mo></mrow></msup></math> hypothesis is compared with alternative hypotheses using the Higgs boson decays H→ γγ, <math xmlns="http://www.w3.org/1998/Math/MathML"><mi is="true">H</mi><mo is="true">→</mo><mi is="true">Z</mi><msup is="true"><mrow is="true"><mi is="true">Z</mi></mrow><mrow is="true"><mo is="true">⁎</mo></mrow></msup><mo is="true">→</mo><mn is="true">4</mn><mi is="true">ℓ</mi></math> and <math xmlns="http://www.w3.org/1998/Math/MathML"><mi is="true">H</mi><mo is="true">→</mo><mi is="true">W</mi><msup is="true"><mrow is="true"><mi is="true">W</mi></mrow><mrow is="true"><mo is="true">⁎</mo></mrow></msup><mo is="true">→</mo><mi is="true">ℓ</mi><mi is="true">ν</mi><mi is="true">ℓ</mi><mi is="true">ν</mi></math>, as well as the combination of these channels. The analysed dataset corresponds to an integrated luminosity of 20.7 fb−1 collected at a centre–of–mass energy of √ s = 8 TeV. For the <math xmlns="http://www.w3.org/1998/Math/MathML"><mi is="true">H</mi><mo is="true">→</mo><mi is="true">Z</mi><msup is="true"><mrow is="true"><mi is="true">Z</mi></mrow><mrow is="true"><mo is="true">⁎</mo></mrow></msup><mo is="true">→</mo><mn is="true">4</mn><mi is="true">ℓ</mi></math> decay mode the dataset corresponding to an integrated luminosity of 4.6 fb−1 collected at √ s = 7 TeV is added. The data are compatible with the Standard Model <math xmlns="http://www.w3.org/1998/Math/MathML"><msup is="true"><mrow is="true"><mi is="true">J</mi></mrow><mrow is="true"><mi is="true">P</mi></mrow></msup><mo is="true">=</mo><msup is="true"><mrow is="true"><mn is="true">0</mn></mrow><mrow is="true"><mo is="true">+</mo></mrow></msup></math> quantum numbers for the Higgs boson, whereas all alternative hypotheses studied in this letter, namely some specific <math xmlns="http://www.w3.org/1998/Math/MathML"><msup is="true"><mrow is="true"><mi is="true">J</mi></mrow><mrow is="true"><mi is="true">P</mi></mrow></msup><mo is="true">=</mo><msup is="true"><mrow is="true"><mn is="true">0</mn></mrow><mrow is="true"><mo is="true">−</mo></mrow></msup><mo is="true">,</mo><msup is="true"><mrow is="true"><mn is="true">1</mn></mrow><mrow is="true"><mo is="true">+</mo></mrow></msup><mo is="true">,</mo><msup is="true"><mrow is="true"><mn is="true">1</mn></mrow><mrow is="true"><mo is="true">−</mo></mrow></msup><mo is="true">,</mo><msup is="true"><mrow is="true"><mn is="true">2</mn></mrow><mrow is="true"><mo is="true">+</mo></mrow></msup></math> models, are excluded at confidence levels above 97.8%. This exclusion holds independently of the assumptions on the coupling strengths to the Standard Model particles and in the case of the <math xmlns="http://www.w3.org/1998/Math/MathML"><msup is="true"><mrow is="true"><mi is="true">J</mi></mrow><mrow is="true"><mi is="true">P</mi></mrow></msup><mo is="true">=</mo><msup is="true"><mrow is="true"><mn is="true">2</mn></mrow><mrow is="true"><mo is="true">+</mo></mrow></msup></math> model, of the relative fractions of gluon–fusion and quark–antiquark production of the spin-2 particle. The data thus provide evidence for the spin-0 nature of the Higgs boson, with positive parity being strongly preferred.Facultad de Ciencias Exactas2013-07-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf120-144http://sedici.unlp.edu.ar/handle/10915/77572enginfo:eu-repo/semantics/altIdentifier/issn/0370-2693info:eu-repo/semantics/altIdentifier/doi/10.1016/j.physletb.2013.08.026info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0/Creative Commons Attribution 4.0 International (CC BY 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:12:32Zoai:sedici.unlp.edu.ar:10915/77572Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:12:32.592SEDICI (UNLP) - Universidad Nacional de La Platafalse |
dc.title.none.fl_str_mv |
Evidence for the spin-0 nature of the Higgs boson using ATLAS data |
title |
Evidence for the spin-0 nature of the Higgs boson using ATLAS data |
spellingShingle |
Evidence for the spin-0 nature of the Higgs boson using ATLAS data Anduaga, Xabier Sebastián Ciencias Exactas spin-0 nature Higgs boson ATLAS data Física |
title_short |
Evidence for the spin-0 nature of the Higgs boson using ATLAS data |
title_full |
Evidence for the spin-0 nature of the Higgs boson using ATLAS data |
title_fullStr |
Evidence for the spin-0 nature of the Higgs boson using ATLAS data |
title_full_unstemmed |
Evidence for the spin-0 nature of the Higgs boson using ATLAS data |
title_sort |
Evidence for the spin-0 nature of the Higgs boson using ATLAS data |
dc.creator.none.fl_str_mv |
Anduaga, Xabier Sebastián Dova, María Teresa Monticelli, Fernando Gabriel Tripiana, Martín F. The ATLAS Collaboration |
author |
Anduaga, Xabier Sebastián |
author_facet |
Anduaga, Xabier Sebastián Dova, María Teresa Monticelli, Fernando Gabriel Tripiana, Martín F. The ATLAS Collaboration |
author_role |
author |
author2 |
Dova, María Teresa Monticelli, Fernando Gabriel Tripiana, Martín F. The ATLAS Collaboration |
author2_role |
author author author author |
dc.subject.none.fl_str_mv |
Ciencias Exactas spin-0 nature Higgs boson ATLAS data Física |
topic |
Ciencias Exactas spin-0 nature Higgs boson ATLAS data Física |
dc.description.none.fl_txt_mv |
Studies of the spin and parity quantum numbers of the Higgs boson are presented, based on proton–proton collision data collected by the ATLAS experiment at the LHC. The Standard Model spin–parity <math xmlns="http://www.w3.org/1998/Math/MathML"><msup is="true"><mrow is="true"><mi is="true">J</mi></mrow><mrow is="true"><mi is="true">P</mi></mrow></msup><mo is="true">=</mo><msup is="true"><mrow is="true"><mn is="true">0</mn></mrow><mrow is="true"><mo is="true">+</mo></mrow></msup></math> hypothesis is compared with alternative hypotheses using the Higgs boson decays H→ γγ, <math xmlns="http://www.w3.org/1998/Math/MathML"><mi is="true">H</mi><mo is="true">→</mo><mi is="true">Z</mi><msup is="true"><mrow is="true"><mi is="true">Z</mi></mrow><mrow is="true"><mo is="true">⁎</mo></mrow></msup><mo is="true">→</mo><mn is="true">4</mn><mi is="true">ℓ</mi></math> and <math xmlns="http://www.w3.org/1998/Math/MathML"><mi is="true">H</mi><mo is="true">→</mo><mi is="true">W</mi><msup is="true"><mrow is="true"><mi is="true">W</mi></mrow><mrow is="true"><mo is="true">⁎</mo></mrow></msup><mo is="true">→</mo><mi is="true">ℓ</mi><mi is="true">ν</mi><mi is="true">ℓ</mi><mi is="true">ν</mi></math>, as well as the combination of these channels. The analysed dataset corresponds to an integrated luminosity of 20.7 fb−1 collected at a centre–of–mass energy of √ s = 8 TeV. For the <math xmlns="http://www.w3.org/1998/Math/MathML"><mi is="true">H</mi><mo is="true">→</mo><mi is="true">Z</mi><msup is="true"><mrow is="true"><mi is="true">Z</mi></mrow><mrow is="true"><mo is="true">⁎</mo></mrow></msup><mo is="true">→</mo><mn is="true">4</mn><mi is="true">ℓ</mi></math> decay mode the dataset corresponding to an integrated luminosity of 4.6 fb−1 collected at √ s = 7 TeV is added. The data are compatible with the Standard Model <math xmlns="http://www.w3.org/1998/Math/MathML"><msup is="true"><mrow is="true"><mi is="true">J</mi></mrow><mrow is="true"><mi is="true">P</mi></mrow></msup><mo is="true">=</mo><msup is="true"><mrow is="true"><mn is="true">0</mn></mrow><mrow is="true"><mo is="true">+</mo></mrow></msup></math> quantum numbers for the Higgs boson, whereas all alternative hypotheses studied in this letter, namely some specific <math xmlns="http://www.w3.org/1998/Math/MathML"><msup is="true"><mrow is="true"><mi is="true">J</mi></mrow><mrow is="true"><mi is="true">P</mi></mrow></msup><mo is="true">=</mo><msup is="true"><mrow is="true"><mn is="true">0</mn></mrow><mrow is="true"><mo is="true">−</mo></mrow></msup><mo is="true">,</mo><msup is="true"><mrow is="true"><mn is="true">1</mn></mrow><mrow is="true"><mo is="true">+</mo></mrow></msup><mo is="true">,</mo><msup is="true"><mrow is="true"><mn is="true">1</mn></mrow><mrow is="true"><mo is="true">−</mo></mrow></msup><mo is="true">,</mo><msup is="true"><mrow is="true"><mn is="true">2</mn></mrow><mrow is="true"><mo is="true">+</mo></mrow></msup></math> models, are excluded at confidence levels above 97.8%. This exclusion holds independently of the assumptions on the coupling strengths to the Standard Model particles and in the case of the <math xmlns="http://www.w3.org/1998/Math/MathML"><msup is="true"><mrow is="true"><mi is="true">J</mi></mrow><mrow is="true"><mi is="true">P</mi></mrow></msup><mo is="true">=</mo><msup is="true"><mrow is="true"><mn is="true">2</mn></mrow><mrow is="true"><mo is="true">+</mo></mrow></msup></math> model, of the relative fractions of gluon–fusion and quark–antiquark production of the spin-2 particle. The data thus provide evidence for the spin-0 nature of the Higgs boson, with positive parity being strongly preferred. Facultad de Ciencias Exactas |
description |
Studies of the spin and parity quantum numbers of the Higgs boson are presented, based on proton–proton collision data collected by the ATLAS experiment at the LHC. The Standard Model spin–parity <math xmlns="http://www.w3.org/1998/Math/MathML"><msup is="true"><mrow is="true"><mi is="true">J</mi></mrow><mrow is="true"><mi is="true">P</mi></mrow></msup><mo is="true">=</mo><msup is="true"><mrow is="true"><mn is="true">0</mn></mrow><mrow is="true"><mo is="true">+</mo></mrow></msup></math> hypothesis is compared with alternative hypotheses using the Higgs boson decays H→ γγ, <math xmlns="http://www.w3.org/1998/Math/MathML"><mi is="true">H</mi><mo is="true">→</mo><mi is="true">Z</mi><msup is="true"><mrow is="true"><mi is="true">Z</mi></mrow><mrow is="true"><mo is="true">⁎</mo></mrow></msup><mo is="true">→</mo><mn is="true">4</mn><mi is="true">ℓ</mi></math> and <math xmlns="http://www.w3.org/1998/Math/MathML"><mi is="true">H</mi><mo is="true">→</mo><mi is="true">W</mi><msup is="true"><mrow is="true"><mi is="true">W</mi></mrow><mrow is="true"><mo is="true">⁎</mo></mrow></msup><mo is="true">→</mo><mi is="true">ℓ</mi><mi is="true">ν</mi><mi is="true">ℓ</mi><mi is="true">ν</mi></math>, as well as the combination of these channels. The analysed dataset corresponds to an integrated luminosity of 20.7 fb−1 collected at a centre–of–mass energy of √ s = 8 TeV. For the <math xmlns="http://www.w3.org/1998/Math/MathML"><mi is="true">H</mi><mo is="true">→</mo><mi is="true">Z</mi><msup is="true"><mrow is="true"><mi is="true">Z</mi></mrow><mrow is="true"><mo is="true">⁎</mo></mrow></msup><mo is="true">→</mo><mn is="true">4</mn><mi is="true">ℓ</mi></math> decay mode the dataset corresponding to an integrated luminosity of 4.6 fb−1 collected at √ s = 7 TeV is added. The data are compatible with the Standard Model <math xmlns="http://www.w3.org/1998/Math/MathML"><msup is="true"><mrow is="true"><mi is="true">J</mi></mrow><mrow is="true"><mi is="true">P</mi></mrow></msup><mo is="true">=</mo><msup is="true"><mrow is="true"><mn is="true">0</mn></mrow><mrow is="true"><mo is="true">+</mo></mrow></msup></math> quantum numbers for the Higgs boson, whereas all alternative hypotheses studied in this letter, namely some specific <math xmlns="http://www.w3.org/1998/Math/MathML"><msup is="true"><mrow is="true"><mi is="true">J</mi></mrow><mrow is="true"><mi is="true">P</mi></mrow></msup><mo is="true">=</mo><msup is="true"><mrow is="true"><mn is="true">0</mn></mrow><mrow is="true"><mo is="true">−</mo></mrow></msup><mo is="true">,</mo><msup is="true"><mrow is="true"><mn is="true">1</mn></mrow><mrow is="true"><mo is="true">+</mo></mrow></msup><mo is="true">,</mo><msup is="true"><mrow is="true"><mn is="true">1</mn></mrow><mrow is="true"><mo is="true">−</mo></mrow></msup><mo is="true">,</mo><msup is="true"><mrow is="true"><mn is="true">2</mn></mrow><mrow is="true"><mo is="true">+</mo></mrow></msup></math> models, are excluded at confidence levels above 97.8%. This exclusion holds independently of the assumptions on the coupling strengths to the Standard Model particles and in the case of the <math xmlns="http://www.w3.org/1998/Math/MathML"><msup is="true"><mrow is="true"><mi is="true">J</mi></mrow><mrow is="true"><mi is="true">P</mi></mrow></msup><mo is="true">=</mo><msup is="true"><mrow is="true"><mn is="true">2</mn></mrow><mrow is="true"><mo is="true">+</mo></mrow></msup></math> model, of the relative fractions of gluon–fusion and quark–antiquark production of the spin-2 particle. The data thus provide evidence for the spin-0 nature of the Higgs boson, with positive parity being strongly preferred. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013-07-04 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Articulo http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://sedici.unlp.edu.ar/handle/10915/77572 |
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http://sedici.unlp.edu.ar/handle/10915/77572 |
dc.language.none.fl_str_mv |
eng |
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eng |
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info:eu-repo/semantics/altIdentifier/issn/0370-2693 info:eu-repo/semantics/altIdentifier/doi/10.1016/j.physletb.2013.08.026 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/4.0/ Creative Commons Attribution 4.0 International (CC BY 4.0) |
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openAccess |
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http://creativecommons.org/licenses/by/4.0/ Creative Commons Attribution 4.0 International (CC BY 4.0) |
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application/pdf 120-144 |
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