Measurement of the top-quark mass in tt¯ + 1-jet events collected with the ATLAS detector in pp collisions at √s = 8 TeV

doi:10.1007/JHEP11(2019)150

Utilize este identificador para referenciar este registo: https://hdl.handle.net/1822/75359

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Campo DC	Valor	Idioma
dc.contributor.author	Onofre, A.	por
dc.contributor.author	Castro, Nuno Filipe	por
dc.contributor.author	ATLAS Collaboration	por
dc.date.accessioned	2022-01-10T17:35:21Z	-
dc.date.available	2022-01-10T17:35:21Z	-
dc.date.issued	2019	-
dc.identifier.citation	The ATLAS collaboration., Aad, G., Abbott, B. et al. Measurement of the top-quark mass in tt¯ + 1-jet events collected with the ATLAS detector in pp collisions at s√ = 8 TeV. J. High Energ. Phys. 2019, 150 (2019). https://doi.org/10.1007/JHEP11(2019)150	por
dc.identifier.issn	1029-8479	-
dc.identifier.uri	https://hdl.handle.net/1822/75359	-
dc.description.abstract	A determination of the top-quark mass is presented using 20.2 fb−1 of 8 TeV proton-proton collision data produced by the Large Hadron Collider and collected by the ATLAS experiment. The normalised differential cross section of top-quark pair production in association with an energetic jet is measured in the lepton+jets final state and unfolded to parton and particle levels. The unfolded distribution at parton level can be described using next-to-leading-order QCD predictions in terms of either the top-quark pole mass or the running mass as defined in the (modified) minimal subtraction scheme. A comparison between the experimental distribution and the theoretical prediction allows the top-quark mass to be extracted in the two schemes. The value obtained for the pole-mass scheme is: mtpole=171.1±0.4(stat)±0.9(syst)−0.3+0.7(theo)GeV The extracted value in the running-mass scheme is: mt(mt)=162.9±0.5(stat)±1.0(syst)−1.2+2.1(theo)GeV. The results for the top-quark mass using the two schemes are consistent, when translated from one scheme to the other. [Figure not available: see fulltext.]	por
dc.description.sponsorship	We thank CERN for the very successful operation of the LHC, as well as the support staff from our institutions without whom ATLAS could not be operated efficiently.r We acknowledge the support of ANPCyT, Argentina; YerPhI, Armenia; ARC, Australia; BMWFW 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 and DNSRC, Denmark; IN2P3-CNRS, CEA-DRF/IRFU, France; SRNSFG, Georgia; BMBF, HGF, and MPG, Germany; GSRT, Greece; RGC, Hong Kong SAR, China; ISF and Benoziyo Center, Israel; INFN, Italy; MEXT and JSPS, Japan; CNRST, Morocco; NWO, Netherlands; RCN, Norway; MNiSW and NCN, Poland; FCT, Portugal; MNE/IFA, Romania; MES of Russia and NRC KI, Russian Federation; JINR; MESTD, Serbia; MSSR, Slovakia; ARRS and MIZS, Slovenia; DST/NRF, South Africa; MINECO, Spain; SRC and Wallenberg Foundation, Sweden; SERI, SNSF and Cantons of Bern and Geneva, Switzerland; MOST, Taiwan; TAEK, Turkey; STFC, United Kingdom; DOE and NSF, United States of America. In addition, individual groups and members have received support from BCKDF, CANARIE, CRC and Compute Canada, Canada; COST, ERC, ERDF, Horizon 2020, and Marie Sklodowska-Curie Actions, European Union; Investissements d' Avenir Labex and Idex, 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 GIF, Israel; CERCA Programme Generalitat de Catalunya, Spain; The Royal Society and Leverhulme Trust, United Kingdom.r 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 (U.K.) and BNL (U.S.A.), the Tier-2 facilities worldwide and large non-WLCG resource providers.	por
dc.language.iso	eng	por
dc.publisher	Springer	por
dc.rights	openAccess	por
dc.subject	Hadron-Hadron scattering (experiments)	por
dc.subject	Top physics	por
dc.title	Measurement of the top-quark mass in tt¯ + 1-jet events collected with the ATLAS detector in pp collisions at √s = 8 TeV	por
dc.type	article	por
dc.peerreviewed	yes	por
dc.relation.publisherversion	https://link.springer.com/article/10.1007%2FJHEP11%282019%29150	por
oaire.citationIssue	11	por
oaire.citationVolume	2019	por
dc.identifier.doi	10.1007/JHEP11(2019)150	por
dc.subject.fos	Ciências Naturais::Ciências Físicas	por
dc.description.publicationversion	info:eu-repo/semantics/publishedVersion	-
dc.subject.wos	Science & Technology	por
sdum.journal	Journal of High Energy Physics	por
oaire.version	VoR	por
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