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Evidence for the spin-0 nature of the Higgs boson using ATLAS data
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Evidence for the spin-0 nature of the Higgs boson using ATLAS data
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| dc.contributor.author | ATLAS Collaboration | |
| dc.contributor.author | Cabrera Urbán, Susana | |
| dc.contributor.author | Castillo Giménez, María Victoria | |
| dc.contributor.author | Costa Mezquita, María José | |
| dc.contributor.author | Fassi, Farida | |
| dc.contributor.author | Ferrer Soria, Antonio | |
| dc.contributor.author | Fiorini, Luca | |
| dc.contributor.author | Fuster Verdú, Juan A. | |
| dc.contributor.author | García García, Carmen | |
| dc.contributor.author | García Navarro, José Enrique | |
| dc.contributor.author | González de la Hoz, Santiago | |
| dc.contributor.author | Hernández Jiménez, Yesenia | |
| dc.contributor.author | Higón Rodríguez, Emilio | |
| dc.contributor.author | Irles Quiles, Adrián | |
| dc.contributor.author | Kaci, Mohammed | |
| dc.contributor.author | Lacasta Llácer, Carlos | |
| dc.contributor.author | Lacuesta Miquel, Vicente | |
| dc.contributor.author | Martí García, Salvador | |
| dc.contributor.author | Miñano Moya, Mercedes | |
| dc.contributor.author | Mitsou, Vasiliki | |
| dc.contributor.author | Moles Valls, Regina | |
| dc.contributor.author | Moreno Llácer, María | |
| dc.contributor.author | Oliver García, Elena | |
| dc.contributor.author | Pedraza López, Sebastián | |
| dc.contributor.author | Pérez García-Estañ, María Teresa | |
| dc.contributor.author | Romero Adam, E. | |
| dc.contributor.author | Ros Martínez, Eduardo | |
| dc.contributor.author | Salt Cairols, José | |
| dc.contributor.author | Sánchez Martínez, Victoria | |
| dc.contributor.author | Solans Sánchez, Carlos Antonio | |
| dc.contributor.author | Soldevila, U. | |
| dc.contributor.author | Sánchez Martínez, Javier | |
| dc.contributor.author | Torró Pastor, Emma | |
| dc.contributor.author | Valero Biot, Alberto | |
| dc.contributor.author | Valladolid Gallego, E. | |
| dc.contributor.author | Valls Ferrer, Juan Antonio | |
| dc.contributor.author | Villaplana Pérez, Miguel | |
| dc.contributor.author | Vos, Marcel | |
| dc.date.accessioned | 2014-09-17T11:38:43Z | |
| dc.date.available | 2014-09-17T11:38:43Z | |
| dc.date.issued | 2013 | |
| dc.identifier.citation | ATLAS Collaboration Cabrera Urbán, Susana Castillo Giménez, María Victoria Costa Mezquita, María José Fassi, Farida Ferrer Soria, Antonio Fiorini, Luca Fuster Verdú, Juan A. García García, Carmen García Navarro, José Enrique González de la Hoz, Santiago Hernández Jiménez, Yesenia Higón Rodríguez, Emilio Irles Quiles, Adrián Kaci, Mohammed Lacasta Llácer, Carlos Lacuesta Miquel, Vicente Martí García, Salvador Miñano, M. Mitsou, Vasiliki Moles Valls, Regina Moreno Llácer, María Oliver García, Elena Pedraza López, Sebastián Pérez García-Estañ, María Teresa Romero Adam, E. Ros Martínez, Eduardo Salt Cairols, José Sánchez Martínez, V. Solans Sánchez, Carlos Antonio Soldevila, U. Sánchez, J. Torró Pastor, Emma Valero, A. Valladolid Gallego, E. Valls Ferrer, Juan Antonio Villaplana Pérez, Miguel Vos, Marcel 2013 Evidence for the spin-0 nature of the Higgs boson using ATLAS data Physics Letters B 726 1-3 120 144 | |
| dc.identifier.uri | http://hdl.handle.net/10550/37970 | |
| dc.description.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->gamma gamma, H -> ZZ -> 4 leptons and H->WW -> l nu l nu, 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 sqrt(s) = 8 TeV. For the H -> ZZ -> 4-lepton decay mode the dataset corresponding to an integrated luminosity of 4.6 fb-1 collected at sqrt(s) = 7 TeV is added. 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. | |
| dc.language.iso | eng | |
| dc.relation.ispartof | Physics Letters B, 2013, vol. 726, num. 1-3, p. 120-144 | |
| dc.subject | Física nuclear | |
| dc.title | Evidence for the spin-0 nature of the Higgs boson using ATLAS data | |
| dc.type | journal article | es_ES |
| dc.date.updated | 2014-09-17T11:38:43Z | |
| dc.identifier.doi | 10.1016/j.physletb.2013.08.026 | |
| dc.identifier.idgrec | 091410 | |
| dc.rights.accessRights | open access | es_ES |
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