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Título: | Measurement of the top-quark mass in tt 1-jet events collected with the ATLAS detector in pp collisions at=8 TeV |
Autor: | Álvarez Piqueras, D. CSIC ORCID; Aparisi Pozo, J.A.; Bailey, A.J.; Barranco, Laura; Cabrera, Susana CSIC ORCID; Castillo, F.L.; Castillo Mª Victoria; Cerda Alberich, L.; Costa, María José CSIC ORCID; Escobar, Carlos CSIC ORCID ; Estrada, Oscar; Ferrer, Antonio CSIC ORCID; Fiorini, L. CSIC ORCID; Fullana, Esteban CSIC ORCID; Fuster, Juan CSIC ORCID; García García, Carmen CSIC ORCID; García Navarro, José Enrique CSIC ORCID; González de la Hoz, Santiago CSIC ORCID CVN; Gonzalvo Rodríguez, Galo Rafael; Higón, Emilio CSIC ORCID; Jimenez Pena, Javier; Lacasta Llácer, Carlos CSIC ORCID ; Lozano Bahilo, José J.; Madaffari, Daniele CSIC ORCID; Mamuzic, Judita; Martí García, Salvador; Melini, Davide; Miñano Moya, M.; Mitsou, Vasiliki A. CSIC ORCID ; Rodriguez Bosca, S.; Rodriguez Rodriguez, D. CSIC; Ruiz Martínez, Arantxa CSIC ORCID; Salt, José CSIC ORCID; Santra, A.; Sánchez Martínez, Javier CSIC ORCID; Soldevila, Urmila CSIC ORCID; Valero, Alberto CSIC ORCID; Valls Ferrer, Juan Antonio CSIC ORCID; Vos, Marcel CSIC ORCID; ATLAS Collaboration | Fecha de publicación: | nov-2019 | Editor: | Institute of Physics Publishing | Citación: | Journal of High Energy Physics 11 (11): 150 (2019) | Resumen: | 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: rnirle 171.1 0.4 (stat) 0.9 (syst) 173 (theo) GeV. The extracted value in the running-mass scheme is: rnt(rnt) = 162.9 0.5 (stat) 1.0 (syst) 1:12 (theo) GeV. The results for the top -quark mass using the two schemes are consistent, when translated from one scheme to the other. | Versión del editor: | http://dx.doi.org/10.1007/JHEP11(2019)150 | URI: | http://hdl.handle.net/10261/206612 | DOI: | 10.1007/JHEP11(2019)150 | Identificadores: | doi: 10.1007/JHEP11(2019)150 issn: 1029-8479 |
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