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dc.date.accessioned | 2019-03-07T15:05:10Z | |
dc.date.available | 2019-03-07T15:05:10Z | |
dc.date.issued | 2015-10-06 | |
dc.identifier.uri | http://sedici.unlp.edu.ar/handle/10915/72912 | |
dc.description.abstract | Studies of the spin, parity and tensor couplings of the Higgs boson in the H → ZZ∗ → 4ℓ, H → WW∗ → eνμν and H → γγ decay processes at the LHC are presented. The investigations are based on 25 fb−1 of pp collision data collected by the ATLAS experiment at √s = 7 TeV and √s = 8 TeV. The Standard Model (SM) Higgs boson hypothesis, corresponding to the quantum numbers JP = 0+, is tested against several alternative spin scenarios, including non-SM spin-0 and spin-2 models with universal and non-universal couplings to fermions and vector bosons. All tested alternative models are excluded in favour of the SM Higgs boson hypothesis at more than 99.9%confidence level. Using the H → ZZ∗ → 4ℓ and H → WW∗ → eνμν decays, the tensor structure of the interaction between the spin-0 boson and the SM vector bosons is also investigated. The observed distributions of variables sensitive to the non-SMtensor couplings are compatible with the SM predictions and constraints on the non-SM couplings are derived. | en |
dc.language | en | es |
dc.subject | bosón de Higgs | es |
dc.subject | fermiones | es |
dc.title | Study of the spin and parity of the Higgs boson in diboson decays with the ATLAS detector | en |
dc.type | Articulo | es |
sedici.identifier.other | https://doi.org/10.1140/epjc/s10052-016-3934-y | |
sedici.creator.person | Dova, María Teresa | es |
sedici.creator.person | Alconada Verzini, María Josefina | es |
sedici.creator.person | Alonso, Francisco | es |
sedici.creator.person | Arduh, Francisco Anuar | es |
sedici.creator.person | Monticelli, Fernando Gabriel | es |
sedici.creator.person | Wahlberg, Hernán Pablo | es |
sedici.creator.person | The ATLAS Collaboration | es |
sedici.subject.materias | Ciencias Exactas | es |
sedici.description.fulltext | true | es |
mods.originInfo.place | Facultad de Ciencias Exactas | es |
sedici.subtype | Articulo | es |
sedici.rights.license | Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) | |
sedici.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | |
sedici.description.peerReview | peer-review | es |
sedici.relation.journalTitle | The European Physical Journal C | es |
sedici.relation.journalVolumeAndIssue | vol. 75, no. 476 | es |