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Measurement of Top Quark Polarization in Top-Antitop Events from Proton-Proton Collisions at s√=7 TeV Using the ATLAS Detector
dc.contributor.author | Aad, G. | |
dc.contributor.author | Aguilar Saavedra, Juan Antonio | |
dc.contributor.author | Atlas Collaboration | |
dc.date.accessioned | 2014-02-25T11:01:21Z | |
dc.date.available | 2014-02-25T11:01:21Z | |
dc.date.issued | 2013 | |
dc.identifier.citation | Aad, G.; et al. Measurement of Top Quark Polarization in Top-Antitop Events from Proton-Proton Collisions at s√=7 TeV Using the ATLAS Detector. Physical Review Letters, 111: 232002 (2013). [http://hdl.handle.net/10481/30542] | es_ES |
dc.identifier.issn | 0031-9007 | |
dc.identifier.issn | 1079-7114 | |
dc.identifier.other | doi: 10.1103/PhysRevLett.111.232002 | |
dc.identifier.uri | http://hdl.handle.net/10481/30542 | |
dc.description.abstract | This Letter presents measurements of the polarization of the top quark in top-antitop quark pair events, using 4.7 fb−1 of proton-proton collision data recorded with the ATLAS detector at the Large Hadron Collider at s√=7 TeV. Final states containing one or two isolated leptons (electrons or muons) and jets are considered. Two measurements of αℓP, the product of the leptonic spin-analyzing power and the top quark polarization, are performed assuming that the polarization is introduced by either a CP conserving or a maximally CP violating production process. The measurements obtained, αℓPCPC=−0.035±0.014(stat)±0.037(syst) and αℓPCPV=0.020±0.016(stat)+0.013−0.017(syst), are in good agreement with the standard model prediction of negligible top quark polarization. | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | American Physical Society | es_ES |
dc.rights | Creative Commons Attribution-NonCommercial-NoDerivs 3.0 License | es_ES |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/ | es_ES |
dc.subject | Top quark | es_ES |
dc.subject | Atlas detector | es_ES |
dc.subject | Proton collisions | es_ES |
dc.title | Measurement of Top Quark Polarization in Top-Antitop Events from Proton-Proton Collisions at s√=7 TeV Using the ATLAS Detector | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | es_ES |