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Determination of the top-quark pole mass using t(t)over-bar+1-jet events collected with the atlas experiment in 7 tev pp collisions

文献类型:期刊论文

AuthorAad, G.122,123; Abbott, B.155; Abdallah, J.217; Khalek, S. Abdel159; Abdinov, O.14; Aben, R.148,149; Abi, B.156; Abolins, M.128; AbouZeid, O. S.225; Abramowicz, H.219
SourceJournal of high energy physics
Issued Date2015-10-19
Issue10Pages:41
ISSN1029-8479
KeywordHadron-hadron scattering Top physics
DOI10.1007/jhep10(2015)121
Corresponding AuthorAad, g.()
English AbstractThe normalized differential cross section for top-quark pair production in association with at least one jet is studied as a function of the inverse of the invariant mass of the t (t) over bar + 1-jet system. this distribution can be used for a precise determination of the top-quark mass since gluon radiation depends on the mass of the quarks. the experimental analysis is based on proton-proton collision data collected by the atlas detector at the lhc with a centre-of-mass energy of 7tev corresponding to an integrated luminosity of 4.6 fb(-1). the selected events were identified using the lepton+jets top-quark-pair decay channel, where lepton refers to either an electron or a muon. the observed distribution is compared to a theoretical prediction at next-to-leading-order accuracy in quantum chromodynamics using the pole-mass scheme. with this method, the measured value of the top-quark pole mass, m(t)(pole), is: m(t)(pole) t = 173.7 +/- 1.5 (stat.) +/- 1.4 (syst.)(-0.5)(+1.0) (theory) gev. this result represents the most precise measurement of the top-quark pole mass to date.
WOS KeywordPARTON DISTRIBUTIONS ; HADRON COLLIDERS ; LHC ; GENERATORS
WOS Research AreaPhysics
WOS SubjectPhysics, Particles & Fields
Language英语
WOS IDWOS:000363476900001
PublisherSPRINGER
URIhttp://www.irgrid.ac.cn/handle/1471x/2176488
Collection高能物理研究所
Corresponding AuthorAad, G.
Affiliation1.Univ Adelaide, Dept Phys, Adelaide, SA, Australia
2.SUNY Albany, Dept Phys, Albany, NY 12222 USA
3.Univ Alberta, Dept Phys, Edmonton, AB, Canada
4.Ankara Univ, Dept Phys, TR-06100 Ankara, Turkey
5.Istanbul Aydin Univ, Istanbul, Turkey
6.TOBB Univ Econ & Technol, Div Phys, Ankara, Turkey
7.CNRS IN2P3, LAPP, Annecy Le Vieux, France
8.Univ Savoie Mont Blanc, Annecy Le Vieux, France
9.Argonne Natl Lab, Div High Energy Phys, Argonne, IL 60439 USA
10.Univ Arizona, Dept Phys, Tucson, AZ 85721 USA
Recommended Citation
GB/T 7714
Aad, G.,Abbott, B.,Abdallah, J.,et al. Determination of the top-quark pole mass using t(t)over-bar+1-jet events collected with the atlas experiment in 7 tev pp collisions[J]. Journal of high energy physics,2015(10):41.
APA Aad, G..,Abbott, B..,Abdallah, J..,Khalek, S. Abdel.,Abdinov, O..,...&Hasegawa, S..(2015).Determination of the top-quark pole mass using t(t)over-bar+1-jet events collected with the atlas experiment in 7 tev pp collisions.Journal of high energy physics(10),41.
MLA Aad, G.,et al."Determination of the top-quark pole mass using t(t)over-bar+1-jet events collected with the atlas experiment in 7 tev pp collisions".Journal of high energy physics .10(2015):41.

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