Evidence for the spin-0 nature of the Higgs boson using ATLAS data

to related objects

Abstract: 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 JP=0+ hypothesis is compared with alternative hypotheses using the Higgs boson decays H→γγ, ⁎H→ZZ⁎→4ℓ and ⁎H→WW⁎→ℓνℓν, 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=8TeV. For the ⁎H→ZZ⁎→4ℓ decay mode the dataset corresponding to an integrated luminosity of 4.6 fb−1 collected at s=7TeV is included. The data are compatible with the Standard Model JP=0+ quantum numbers for the Higgs boson, whereas all alternative hypotheses studied in this Letter, namely some specific JP=0−,1+,1−,2+ 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 JP=2+ 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

Location
Deutsche Nationalbibliothek Frankfurt am Main
Extent
Online-Ressource
Language
Englisch
Notes
Physics letters / B. - 726, 1-3 (2013) , 120-144, ISSN: 0370-2693

DOI
10.1016/j.physletb.2013.08.026
URN
urn:nbn:de:bsz:25-freidok-2235080
Rights
Kein Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
Last update
15.08.2025, 7:22 AM CEST

Data provider

This object is provided by:
Deutsche Nationalbibliothek. If you have any questions about the object, please contact the data provider.
Show original at data provider

Associated

Time of origin

  • 2022

Other Objects (12)

Search for supersymmetric particles in final states with jets and missing transverse momentum withthe ATLAS detector : = Suche nach supersymmetrischen Teilchen mit dem ATLAS Detektor in Endzuständen mit Jets und fehlender transversaler Energie

Hochschulschrift

Search for supersymmetric particles in final states with jets and missing transverse momentum withthe ATLAS detector : = Suche nach supersymmetrischen Teilchen mit dem ATLAS Detektor in Endzuständen mit Jets und fehlender transversaler Energie

Electrical tests of silicon detector modules for the ATLAS experiment and a study of the discovery potential of the ttH, H->WW process : = Elektrische Tests von Silizium-Detektormodulen für das ATLAS-Experiment und eine Studie des Entdeckungspotenzials für den ttH, H->WW -Prozess

Hochschulschrift

Electrical tests of silicon detector modules for the ATLAS experiment and a study of the discovery potential of the ttH, H->WW process : = Elektrische Tests von Silizium-Detektormodulen für das ATLAS-Experiment und eine Studie des Entdeckungspotenzials für den ttH, H->WW -Prozess

NLO QCD predictions for $$Z+\gamma $$ Z+γ + jets production with Sherpa

NLO QCD predictions for $$Z+\gamma $$ Z+γ + jets production with Sherpa

Search for supersymmetry in events with missing transverse energy and b-Jets with the ATLAS detector : = Suche nach Supersymmetrie in Ereignissen mit fehlender transversaler Energie und b-Jets mit dem ATLAS-Detektor

Hochschulschrift

Search for supersymmetry in events with missing transverse energy and b-Jets with the ATLAS detector : = Suche nach Supersymmetrie in Ereignissen mit fehlender transversaler Energie und b-Jets mit dem ATLAS-Detektor

Odderon exchange from elastic scattering differences between pp and pp¯ Data at 1.96 TeV and from pp forward scattering measurements

Odderon exchange from elastic scattering differences between pp and pp¯ Data at 1.96 TeV and from pp forward scattering measurements

Resonance-aware subtraction in the dipole method

Resonance-aware subtraction in the dipole method

Momentum conservation and unitarity in parton showers and NLL resummation

Momentum conservation and unitarity in parton showers and NLL resummation

Polarised cross sections for vector boson production with Sherpa

Polarised cross sections for vector boson production with Sherpa

t t ¯ b b ¯ $$ t\overlinet}b\overline{b} $$ at NLO precision in a variable flavor number scheme

t t ¯ b b ¯ $$ t\overlinet}b\overline{b} $$ at NLO precision in a variable flavor number scheme

Study of the normalized transverse momentum distribution of W bosons produced in pp¯ collisions at √s=1.96 TeV : = Study of the normalized transverse momentum distribution of W bosons produced in pp¯ collisions at [square root]s=1.96 TeV

Study of the normalized transverse momentum distribution of W bosons produced in pp¯ collisions at √s=1.96 TeV : = Study of the normalized transverse momentum distribution of W bosons produced in pp¯ collisions at [square root]s=1.96 TeV

The differential production cross section of the ϕ(1020) meson in s√ = 7 TeV pp collisions measured with the ATLAS detector

The differential production cross section of the ϕ(1020) meson in s√ = 7 TeV pp collisions measured with the ATLAS detector

Search for supersymmetry in events with large missing transverse momentum, jets, and at least one tau lepton in 7 TeV proton-proton collision data with the ATLAS detector

Search for supersymmetry in events with large missing transverse momentum, jets, and at least one tau lepton in 7 TeV proton-proton collision data with the ATLAS detector

Related objects