Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/31934
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Campo DC | Valor | Idioma |
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dc.contributor.author | Onofre, A. | por |
dc.contributor.author | Castro, Nuno Filipe Silva Fernandes | - |
dc.contributor.author | ATLAS Collaboration | - |
dc.date.accessioned | 2014-12-15T14:41:14Z | - |
dc.date.available | 2014-12-15T14:41:14Z | - |
dc.date.issued | 2013 | - |
dc.identifier.citation | Aad, G., Abajyan, T., Abbott, B., Abdallah, J., AbdelKhalek, S., Abdinov, O., . . . Zwalinski, L. (2013). Evidence for the spin-0 nature of the Higgs boson using ATLAS data. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 726(1-3), 120-144. doi: 10.1016/j.physletb.2013.08.026 | por |
dc.identifier.issn | 0370-2693 | - |
dc.identifier.uri | https://hdl.handle.net/1822/31934 | - |
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→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 View the MathML source. For the H→ZZ⁎→4ℓ decay mode the dataset corresponding to an integrated luminosity of 4.6 fb−1 collected at View the MathML source 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. | por |
dc.description.sponsorship | We acknowledge the support of ANPCyT, Argentina; YerPhl, Armenia; ARC, Australia; BMWF and FWF, Austria; ANAS, Azerbaijan; SSTC, Belarus; CNPq and FAPESP, Brazil; NSERC, NRC and CFI, Canada; CERN; CONICYT, Chile; CAS, MOST and NSFC, China; COLCIENCIAS, Colombia; MSMT CR, MPO CR and VSC CR, Czech Republic; DNRF, DNSRC and Lundbeck Foundation, Denmark; EPLANET, ERC and NSRF, European Union; IN2P3-CNRS, CEA-DSM/IRFU, France; GNSF, Georgia; BMBF, DFG, HGF, MPG and AvH Foundation, Germany; GSRT and NSRF, Greece; ISF, MINERVA, GIF, DIP and Benoziyo Center, Israel; INFN, Italy; MEXT and JSPS, Japan; CNRST, Morocco; FOM and NWO, Netherlands; BRF and RCN, Norway; MNiSW, Poland; GRICES and FCT, Portugal; MERYS (MECTS), Romania; MES of Russia and ROSATOM, Russian Federation; JINR; MSTD, Serbia; MSSR, Slovakia; ARRS and MIZS, Slovenia; DST/NRF, South Africa; MICINN, Spain; SRC and Wallenberg Foundation, Sweden; SER, SNSF and Cantons of Bern and Geneva, Switzerland; NSC, Taiwan; TAEK, Turkey; STFC, the Royal Society and Leverhulme Trust, United Kingdom; DOE and NSF, United States of America. | por |
dc.language.iso | eng | por |
dc.publisher | Elsevier 1 | por |
dc.rights | openAccess | por |
dc.subject | Higgs boson | por |
dc.subject | Spin | por |
dc.subject | Parity | por |
dc.title | Evidence for the spin-0 nature of the Higgs boson using ATLAS data | por |
dc.type | article | por |
dc.peerreviewed | yes | por |
dc.relation.publisherversion | http://www.sciencedirect.com/science/article/pii/S0370269313006527 | por |
sdum.publicationstatus | published | por |
oaire.citationStartPage | 120 | por |
oaire.citationEndPage | 144 | por |
oaire.citationIssue | 1-3 | por |
oaire.citationTitle | Physics Letters B | por |
oaire.citationVolume | 726 | por |
dc.identifier.doi | 10.1016/j.physletb.2013.08.026 | por |
dc.subject.fos | Ciências Naturais::Ciências Físicas | por |
dc.subject.wos | Science & Technology | por |
sdum.journal | Physics Letters B | por |
Aparece nas coleções: | LIP - Artigos/papers |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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Evidence for the spin-0 nature of the Higgs boson using ATLAS data.pdf | 1,52 MB | Adobe PDF | Ver/Abrir |