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Evidence for the charge asymmetry in pp → t¯t production at √s = 13 TeV with the ATLAS detector
dc.contributor.author | Atlas Collaboration | |
dc.contributor.author | Aad, Georges | |
dc.contributor.author | Aguilar Saavedra, Juan Antonio | |
dc.contributor.author | Rodríguez Chala, Mikael | |
dc.date.accessioned | 2023-10-06T10:16:29Z | |
dc.date.available | 2023-10-06T10:16:29Z | |
dc.date.issued | 2023-08-16 | |
dc.identifier.citation | The ATLAS collaboration., Aad, G., Abbott, B. et al. Evidence for the charge asymmetry in pp → tt¯ production at s√ = 13 TeV with the ATLAS detector. J. High Energ. Phys. 2023, 77 (2023). [https://doi.org/10.1007/JHEP08(2023)077] | es_ES |
dc.identifier.uri | https://hdl.handle.net/10481/84882 | |
dc.description | We acknowledge the support of ANPCyT, Argentina; YerPhI, Armenia; ARC, Australia; BMWFW and FWF, Austria; ANAS, Azerbaijan; CNPq and FAPESP, Brazil; NSERC, NRC and CFI, Canada; CERN; ANID, Chile; CAS, MOST and NSFC, China; Minciencias, Colombia; MEYS CR, Czech Republic; DNRF and DNSRC, Denmark; IN2P3-CNRS and CEA-DRF/IRFU, France; SRNSFG, Georgia; BMBF, HGF and MPG, Germany; GSRI, Greece; RGC and Hong Kong SAR, China; ISF and Benoziyo Center, Israel; INFN, Italy; MEXT and JSPS, Japan; CNRST, Morocco; NWO, Netherlands; RCN, Norway; MEiN, Poland; FCT, Portugal; MNE/IFA, Romania; MESTD, Serbia; MSSR, Slovakia; ARRS and MIZŠ, Slovenia; DSI/NRF, South Africa; MICINN, Spain; SRC and Wallenberg Foundation, Sweden; SERI, SNSF and Cantons of Bern and Geneva, Switzerland; MOST, Taiwan; TENMAK, Türkiye; STFC, United Kingdom; DOE and NSF, United States of America. In addition, individual groups and members have received support from BCKDF, CANARIE, Compute Canada and CRC, Canada; PRIMUS 21/SCI/017 and UNCE SCI/013, Czech Republic; COST, ERC, ERDF, Horizon 2020 and Marie Skłodowska-Curie Actions, European Union; Investissements d’Avenir Labex, Investissements d’Avenir Idex and ANR, France; DFG and AvH Foundation, Germany; Herakleitos, Thales and Aristeia programmes co-financed by EU-ESF and the Greek NSRF, Greece; BSF-NSF and MINERVA, Israel; Norwegian Financial Mechanism 2014-2021, Norway; NCN and NAWA, Poland; La Caixa Banking Foundation, CERCA Programme Generalitat de Catalunya and PROMETEO and GenT Programmes Generalitat Valenciana, Spain; Göran Gustafssons Stiftelse, Sweden; The Royal Society and Leverhulme Trust, United Kingdom. The crucial computing support from all WLCG partners is acknowledged gratefully, in particular from CERN, the ATLAS Tier-1 facilities at TRIUMF (Canada), NDGF (Denmark, Norway, Sweden), CC-IN2P3 (France), KIT/GridKA (Germany), INFN-CNAF (Italy), NL-T1 (Netherlands), PIC (Spain), ASGC (Taiwan), RAL (UK) and BNL (USA), the Tier-2 facilities worldwide and large non-WLCG resource providers | es_ES |
dc.description.abstract | Inclusive and differential measurements of the top–antitop (Formula presented.) charge asymmetry (Formula presented.) and the leptonic asymmetry (Formula presented.) are presented in proton–proton collisions at s = 13 TeV recorded by the ATLAS experiment at the CERN Large Hadron Collider. The measurement uses the complete Run 2 dataset, corresponding to an integrated luminosity of 139 fb−1, combines data in the single-lepton and dilepton channels, and employs reconstruction techniques adapted to both the resolved and boosted topologies. A Bayesian unfolding procedure is performed to correct for detector resolution and acceptance effects. The combined inclusive (Formula presented.) charge asymmetry is measured to be (Formula presented.), which differs from zero by 4.7 standard deviations. Differential measurements are performed as a function of the invariant mass, transverse momentum and longitudinal boost of the (Formula presented.) system. Both the inclusive and differential measurements are found to be compatible with the Standard Model predictions, at next-to-next-to-leading order in quantum chromodynamics perturbation theory with next-to-leading-order electroweak corrections. The measurements are interpreted in the framework of the Standard Model effective field theory, placing competitive bounds on several Wilson coefficients. | es_ES |
dc.description.sponsorship | EU-ESF | es_ES |
dc.description.sponsorship | GenT Programmes Generalitat Valenciana, Spain | es_ES |
dc.description.sponsorship | La Caixa Banking Foundation | es_ES |
dc.description.sponsorship | PROMETEO | es_ES |
dc.description.sponsorship | H2020 Marie Skłodowska-Curie Actions MSCA | es_ES |
dc.description.sponsorship | CERN | es_ES |
dc.description.sponsorship | European Research Council ERC | es_ES |
dc.description.sponsorship | European Cooperation in Science and Technology COST | es_ES |
dc.description.sponsorship | Generalitat de Catalunya | es_ES |
dc.description.sponsorship | Agencia Nacional de Promoción Científica y Tecnológica ANPCyT | es_ES |
dc.description.sponsorship | Ministerio de Ciencia e Innovación MICINN | es_ES |
dc.description.sponsorship | Horizon 2020 | es_ES |
dc.description.sponsorship | European Regional Development Fund ERDF | es_ES |
dc.description.sponsorship | Agencia Nacional de Investigación y Desarrollo ANID | es_ES |
dc.description.sponsorship | PIC (Spain) | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | Springer Nature | es_ES |
dc.rights | Atribución 4.0 Internacional | * |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | * |
dc.subject | Hadron-Hadron Scattering | es_ES |
dc.subject | Top Physics | es_ES |
dc.title | Evidence for the charge asymmetry in pp → t¯t production at √s = 13 TeV with the ATLAS detector | es_ES |
dc.type | journal article | es_ES |
dc.rights.accessRights | open access | es_ES |
dc.identifier.doi | 10.1007/JHEP08(2023)077 | |
dc.type.hasVersion | VoR | es_ES |
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