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Measurement of the inclusive cross-sections of single top-quark and top-antiquark t-channel production in pp collisions at root s=13 tev with the atlas detector

文献类型:期刊论文

作者Aaboud, M.193; Aad, G.123,124; Abbott, B.155; Abdallah, J.11; Abdinov, O.15; Abeloos, B.159; Aben, R.148,149; AbouZeid, O. S.197; Abraham, N. L.217; Abramowicz, H.221
刊名Journal of high energy physics
出版日期2017-04-14
期号4页码:41
ISSN号1029-8479
关键词Hadron-hadron scattering (experiments)
DOI10.1007/jhep04(2017)086
通讯作者Aaboud, m.()
英文摘要A measurement of the t-channel single-top-quark and single-top-antiquark production cross-sections in the lepton+jets channel is presented, using 3.2 fb(-1) of proton-proton collision data at a centre-of-mass energy of 13 tev, recorded with the atlas detector at the lhc in 2015. events are selected by requiring one charged lepton (electron or muon), missing transverse momentum, and two jets with high transverse momentum, exactly one of which is required to be b-tagged. using a binned maximum-likelihood fit to the discriminant distribution of a neural network, the cross-sections are determined to be sigma(tq) = 156 +/- 5 (stat.) +/- 27 (syst.) +/- 3 (lumi.) pb for single top-quark production and sigma((t) over barq) = 91 +/- 4 (stat.) +/- 18 (syst.) +/- 2 (lumi.) pb for single top-antiquark production, assuming a top-quark mass of 172.5 gev. the cross-section ratio is measured to be r-t = sigma(tq) / sigma((t) over barq) = 1.72 +/- 0.09 (stat.) +/- 0.18 (syst.). all results are in agreement with standard model predictions.
WOS关键词PARTON DISTRIBUTIONS ; HADRON COLLIDERS ; PLUS PLUS ; LHC ; PACKAGE
WOS研究方向Physics
WOS类目Physics, Particles & Fields
语种英语
出版者SPRINGER
WOS记录号WOS:000399826200001
URI标识http://www.irgrid.ac.cn/handle/1471x/2177238
专题高能物理研究所
通讯作者Aaboud, M.
作者单位1.Univ Adelaide, Dept Phys, Adelaide, SA, Australia
2.SUNY Albany, Dept Phys, Albany, NY USA
3.Univ Alberta, Dept Phys, Edmonton, AB, Canada
4.Ankara Univ, Dept Phys, 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
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Aaboud, M.,Aad, G.,Abbott, B.,et al. Measurement of the inclusive cross-sections of single top-quark and top-antiquark t-channel production in pp collisions at root s=13 tev with the atlas detector[J]. Journal of high energy physics,2017(4):41.
APA Aaboud, M..,Aad, G..,Abbott, B..,Abdallah, J..,Abdinov, O..,...&Hamilton, A..(2017).Measurement of the inclusive cross-sections of single top-quark and top-antiquark t-channel production in pp collisions at root s=13 tev with the atlas detector.Journal of high energy physics(4),41.
MLA Aaboud, M.,et al."Measurement of the inclusive cross-sections of single top-quark and top-antiquark t-channel production in pp collisions at root s=13 tev with the atlas detector".Journal of high energy physics .4(2017):41.

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