Combination of measurements of the top quark mass from data collected by the ATLAS and CMS experiments at = 7 and 8 TeV

(CMS Collaboration) Hayrapetyan, Aram ; ... ; Giljanović, Duje ; Godinović, Nikola ; Lelas, Damir ; Šćulac, Ana ; Kovač, Marko ; Šćulac, Toni ; Bargassa, Pedrame ; Brigljević, Vuko ; Chitroda, Bhakti Kanulal ; Ferenček, Dinko ; Mishra, Saswat ; Starodumov, Andrey ; Šuša, Tatjana ; ... ; Roguljić, Matej ; ... ; Zwalinski, L. (2024) Combination of measurements of the top quark mass from data collected by the ATLAS and CMS experiments at = 7 and 8 TeV. Physical Review Letters, 132 (26). ISSN 0031-9007

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Abstract

A combination of fifteen top quark mass measurements performed by the ATLAS and CMS experiments at the LHC is presented. The data sets used correspond to an integrated luminosity of up to 5 and 20 of proton-proton collisions at center-of-mass energies of 7 and 8 TeV, respectively. The combination includes measurements in top quark pair events that exploit both the semileptonic and hadronic decays of the top quark, and a measurement using events enriched in single top quark production via the electroweak -channel. The combination accounts for the correlations between measurements and achieves an improvement in the total uncertainty of 31% relative to the most precise input measurement. The result is = 172.52 0.14 (stat) 0.30 (syst) GeV, with a total uncertainty of 0.33 GeV.

Item Type:	Article
Uncontrolled Keywords:	high energy physics ; experimental particle physics ; LHC ; CMS ; p p: colliding beams ; top: mass: measured ; p p: scattering ; top: pair production ; top: particle identification ; top: single production ; ATLAS ; final state: ((n)jet) ; final state: ((n)jet lepton) ; electroweak interaction ; CERN LHC Coll ; correlation ; data analysis method ; experimental results ; 7000 GeV-cms ; 8000 GeV-cms
Subjects:	NATURAL SCIENCES NATURAL SCIENCES > Physics NATURAL SCIENCES > Physics > Physics of Elementary Particles and Fields
Divisions:	Centre for detectors, sensors and electronics Division of Experimental Physics
Depositing User:	Martina Žugaj
Date Deposited:	08 Oct 2024 10:27
URI:	http://fulir.irb.hr/id/eprint/9134
DOI:	10.1103/PhysRevLett.132.261902

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