Measurements of top-quark pair to z-boson cross-section ratios at root s=13, 8, 7 tev with the atlas detector
文献类型：期刊论文
| 作者 | Aaboud, M.194,195; Aad, G.124,125; Abbott, B.156; Abdallah, J.11; Abdinov, O.15; Abeloos, B.160; Abidi, S. H.226; AbouZeid, O. S.198; Abraham, N. L.215; Abramowicz, H.219 |
| 刊名 | Journal of high energy physics
 |
| 出版日期 | 2017-02-23 |
| 期号 | 2页码:1-54 |
| 关键词 | Hadron-hadron scattering (experiments) |
| ISSN号 | 1029-8479 |
| DOI | 10.1007/jhep02(2017)117 |
| 通讯作者 | Aaboud, m.() |
| 英文摘要 | Ratios of top-quark pair to z-boson cross sections measured from proton-proton-collisions at the lhc centre-of-mass energies of root s = 13 tev, 8 tev, and 7 tev are presented by the atlas collaboration. single ratios, at a given root s for the two processes and at different root s , for each process, as well as double ratios of the two processes at different root s , are evaluated. the ratios are constructed using previously published atlas measurements of the t (t) over bar and z-boson production cross sections, corrected to a common phase space where required, and a new analysis of z -> l(+)l(-) where l = e, mu at root s = 13 tev performed with data collected in 2015 with an integrated luminosity of 3.2 fb(-1). correlations of systematic uncertainties are taken into account when evaluating the uncertainties in the ratios. the correlation model is also used to evaluate the combined cross section of the z -> e (+) e (-) and the z -> mu (+) mu (-) channels for each value. the results are compared to calculations performed at next-to-next-to-leading-order accuracy using recent sets of parton distribution functions. the data demonstrate significant power to constrain the gluon distribution function for the bjorken-x values near 0.1 and the light-quark sea for x < 0.02. |
| WOS关键词 | PARTON DISTRIBUTIONS ; HADRON COLLIDERS ; QCD ANALYSIS ; PLUS PLUS ; RESUMMATION ; DECAY ; LHC |
| WOS研究方向 | Physics |
| WOS类目 | Physics, Particles & Fields |
| 语种 | 英语 |
| WOS记录号 | WOS:000395022700001 |
| 出版者 | SPRINGER |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2176716 |
| 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 12222 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 Mt 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 |
| 推荐引用方式 GB/T 7714 | Aaboud, M.,Aad, G.,Abbott, B.,et al. Measurements of top-quark pair to z-boson cross-section ratios at root s=13, 8, 7 tev with the atlas detector[J]. Journal of high energy physics,2017(2):1-54. |
| APA | Aaboud, M..,Aad, G..,Abbott, B..,Abdallah, J..,Abdinov, O..,...&Hanagaki, K..(2017).Measurements of top-quark pair to z-boson cross-section ratios at root s=13, 8, 7 tev with the atlas detector.Journal of high energy physics(2),1-54. |
| MLA | Aaboud, M.,et al."Measurements of top-quark pair to z-boson cross-section ratios at root s=13, 8, 7 tev with the atlas detector".Journal of high energy physics .2(2017):1-54. |
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