Measurements of top quark spin observables in tt events using dilepton final states in root s=8 tev pp collisions with the atlas detector
文献类型：期刊论文
| 作者 | Aaboud, M.193,194; Aad, G.126; Abbott, B.155; Abdallah, J.11; Abdinov, O.15; Abeloos, B.159; AbouZeid, O. S.197; Abraham, N. L.214; Abramowicz, H.218; Abreu, H.217 |
| 刊名 | Journal of high energy physics
 |
| 出版日期 | 2017-03-22 |
| 期号 | 3页码:50 |
| 关键词 | Hadron-hadron scattering (experiments) |
| ISSN号 | 1029-8479 |
| DOI | 10.1007/jhep03(2017)113 |
| 通讯作者 | Aaboud, m.(atlas.publications@cern.ch) |
| 英文摘要 | Measurements of top quark spin observables in tt events are presented based on 20.2 fb(-1) of root s = 8tev proton-proton collisions recorded with the atlas detector at the lhc. the analysis is performed in the dilepton final state, characterised by the presence of two isolated leptons ( electrons or muons). there are 15 observables, each sensitive to a different coefficient of the spin density matrix of tt production, which are measured independently. ten of these observables are measured for the first time. all of them are corrected for detector resolution and acceptance effects back to the parton and stable-particle levels. the measured values of the observables at parton level are compared to standard model predictions at next-to-leading order in qcd. the corrected distributions at stable-particle level are presented and the means of the distributions are compared to monte carlo predictions. no significant deviation from the standard model is observed for any observable. |
| WOS关键词 | PARTON DISTRIBUTIONS ; LHC |
| WOS研究方向 | Physics |
| WOS类目 | Physics, Particles & Fields |
| 语种 | 英语 |
| WOS记录号 | WOS:000397706100003 |
| 出版者 | SPRINGER |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2176665 |
| 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 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 |
| 推荐引用方式 GB/T 7714 | Aaboud, M.,Aad, G.,Abbott, B.,et al. Measurements of top quark spin observables in tt events using dilepton final states in root s=8 tev pp collisions with the atlas detector[J]. Journal of high energy physics,2017(3):50. |
| APA | Aaboud, M..,Aad, G..,Abbott, B..,Abdallah, J..,Abdinov, O..,...&Han, S..(2017).Measurements of top quark spin observables in tt events using dilepton final states in root s=8 tev pp collisions with the atlas detector.Journal of high energy physics(3),50. |
| MLA | Aaboud, M.,et al."Measurements of top quark spin observables in tt events using dilepton final states in root s=8 tev pp collisions with the atlas detector".Journal of high energy physics .3(2017):50. |
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