| Probing the w tb vertex structure in t-channel single-top-quark production and decay in pp collisions at root s=8 tev with the atlas detector | |
| Aaboud, M.195,196; Aad, G.125,126; Abbott, B.157; Abdallah, J.11; Abdinov, O.15; Abeloos, B.161; AbouZeid, O. S.199; Abraham, N. L.216; Abramowicz, H.220; Abreu, H.219 | |
| 刊名 | Journal of high energy physics
 |
| 2017-04-20 | |
| 期号 | 4页码:50 |
| 关键词 | Hadron-hadron scattering (experiments) |
| ISSN号 | 1029-8479 |
| DOI | 10.1007/jhep04(2017)124 |
| 通讯作者 | Aaboud, m.() |
| 英文摘要 | To probe the wtb vertex structure, top-quark and w-boson polarisation observables are measured from t-channel single-top-quark events produced in proton-proton collisions at a centre-of-mass energy of 8 tev. the dataset corresponds to an integrated luminosity of 20.2 fb(-1), recorded with the atlas detector at the lhc. selected events contain one isolated electron or muon, large missing transverse momentum and exactly two jets, with one of them identified as likely to contain a b-hadron. stringent selection requirements are applied to discriminate t-channel single-top-quark events from background. the polarisation observables are extracted from asymmetries in angular distributions measured with respect to spin quantisation axes appropriately chosen for the top quark and the w boson. the asymmetry measurements are performed at parton level by correcting the observed angular distributions for detector effects and hadronisation after subtracting the background contributions. the measured top-quark and w-boson polarisation values are in agreement with the standard model predictions. limits on the imaginary part of the anomalous coupling gr are also set from model-independent measurements. |
| WOS关键词 | PARTON DISTRIBUTIONS ; HADRON COLLIDERS ; LHC ; SPIN ; POLARIZATION |
| 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:000400278200001 |
| 内容类型 | 期刊论文 |
| URI标识 | http://www.corc.org.cn/handle/1471x/2177426 |
| 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. Probing the w tb vertex structure in t-channel single-top-quark production and decay in pp collisions at root s=8 tev with the atlas detector[J]. Journal of high energy physics,2017(4):50. |
| APA | Aaboud, M..,Aad, G..,Abbott, B..,Abdallah, J..,Abdinov, O..,...&Hanagaki, K..(2017).Probing the w tb vertex structure in t-channel single-top-quark production and decay in pp collisions at root s=8 tev with the atlas detector.Journal of high energy physics(4),50. |
| MLA | Aaboud, M.,et al."Probing the w tb vertex structure in t-channel single-top-quark production and decay in pp collisions at root s=8 tev with the atlas detector".Journal of high energy physics .4(2017):50. |
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