Measurement of the charge asymmetry in dileptonic decays of top quark pairs in pp collisions at root s=7 tev using the atlas detector
文献类型：期刊论文
| 作者 | Aad, G.124,125; Abbott, B.157; Abdallah, J.220; Khalek, S. Abdel159,161,162; Abdinov, O.15; Aben, R.150,151; Abi, B.158; Abolins, M.130; AbouZeid, O. S.228; Abramowicz, H.222 |
| 刊名 | Journal of high energy physics
 |
| 出版日期 | 2015-05-12 |
| 期号 | 5页码:50 |
| ISSN号 | 1029-8479 |
| 关键词 | Hadron-hadron scattering Top physics |
| DOI | 10.1007/jhep05(2015)061 |
| 英文摘要 | A measurement of the top-antitop (t (t) over bar) charge asymmetry is presented using data corresponding to an integrated luminosity of 4.6 fb(-1) of lhc pp collisions at a centre-of-mass energy of 7 tev collected by the atlas detector. events with two charged leptons, at least two jets and large missing transverse momentum are selected. two observables are studied: a(c)(ll) based on the identified charged leptons, and a(c)(t (t) over bar), based on the reconstructed t (t) over bar final state. the asymmetries are measured to be a(c)(ll) =0.024 +/- 0.015 (stat.) +/- 0.009 (syst.), a(c)(t (t) over bar) = 0.021 +/- 0.025 (stat.) +/- 0.017 (syst.). the measured values are in agreement with the standard model predictions. |
| 语种 | 英语 |
| 出版者 | SPRINGER |
| WOS记录号 | WOS:000356951100004 |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/1639622 |
| 专题 | 高能物理研究所 |
| 通讯作者 | Aad, G. |
| 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, TR-06100 Ankara, Turkey 5.Gazi Univ, Dept Phys, Ankara, Turkey 6.Istanbul Aydin Univ, Istanbul, Turkey 7.TOBB Univ Econ & Technol, Div Phys, Ankara, Turkey 8.CNRS, IN2P3, LAPP, Annecy Le Vieux, France 9.Univ Savoie, Annecy Le Vieux, France 10.Argonne Natl Lab, Div High Energy Phys, Argonne, IL 60439 USA |
| 推荐引用方式 GB/T 7714 | Aad, G.,Abbott, B.,Abdallah, J.,et al. Measurement of the charge asymmetry in dileptonic decays of top quark pairs in pp collisions at root s=7 tev using the atlas detector[J]. Journal of high energy physics,2015(5):50. |
| APA | Aad, G..,Abbott, B..,Abdallah, J..,Khalek, S. Abdel.,Abdinov, O..,...&Hansen, J. B..(2015).Measurement of the charge asymmetry in dileptonic decays of top quark pairs in pp collisions at root s=7 tev using the atlas detector.Journal of high energy physics(5),50. |
| MLA | Aad, G.,et al."Measurement of the charge asymmetry in dileptonic decays of top quark pairs in pp collisions at root s=7 tev using the atlas detector".Journal of high energy physics .5(2015):50. |
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