Evidence for the associated production of the higgs boson and a top quark pair with the atlas detector
文献类型：期刊论文
| 作者 | Aaboud, M.198,199; Aad, G.129,130; Abbott, B.161; Abdinov, O.15; Abeloos, B.165; Abidi, S. H.230; AbouZeid, O. S.202; Abraham, N. L.219; Abramowicz, H.223; Abreu, H.222 |
| 刊名 | Physical review d
 |
| 出版日期 | 2018-04-09 |
| 卷号 | 97期号:7页码:44 |
| ISSN号 | 2470-0010 |
| DOI | 10.1103/physrevd.97.072003 |
| 通讯作者 | Aaboud, m.() |
| 英文摘要 | A search for the associated production of the higgs boson with a top quark pair ((tt) over barh) is reported. the search is performed in multilepton final states using a data set corresponding to an integrated luminosity of 36.1 fb(-1) of proton-proton collision data recorded by the atlas experiment at a center-of-mass energy root s = 13 tev at the large hadron collider. higgs boson decays to ww*, tau tau, and zz* are targeted. seven final states, categorized by the number and flavor of charged-lepton candidates, are examined for the presence of the standard model higgs boson with a mass of 125 gevand a pair of top quarks. an excess of events over the expected background from standard model processes is found with an observed significance of 4.1 standard deviations, compared to an expectation of 2.8 standard deviations. the best fit for the (tt) over barh production cross section is sot (tt) over barh) = 790(-210)(+230) fb, in agreement with the standard model prediction of 507(-50)(+35) fb. the combination of this result with other t |
| WOS关键词 | PARTON DISTRIBUTIONS ; MONTE-CARLO ; LHC ; SEARCH ; MODEL ; SYMMETRIES ; COLLISIONS ; PARTICLES ; PHYSICS ; DECAY |
| WOS研究方向 | Astronomy & Astrophysics ; Physics |
| WOS类目 | Astronomy & Astrophysics ; Physics, Particles & Fields |
| 语种 | 英语 |
| 出版者 | AMER PHYSICAL SOC |
| WOS记录号 | WOS:000429456900001 |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2177574 |
| 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, High Energy Phys Div, 9700 S Cass Ave, 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. Evidence for the associated production of the higgs boson and a top quark pair with the atlas detector[J]. Physical review d,2018,97(7):44. |
| APA | Aaboud, M..,Aad, G..,Abbott, B..,Abdinov, O..,Abeloos, B..,...&Hanke, P..(2018).Evidence for the associated production of the higgs boson and a top quark pair with the atlas detector.Physical review d,97(7),44. |
| MLA | Aaboud, M.,et al."Evidence for the associated production of the higgs boson and a top quark pair with the atlas detector".Physical review d 97.7(2018):44. |
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