Observation of (tt)over-barh production
文献类型：期刊论文
| 作者 | Sirunyan, A. M.1; Tumasyan, A.2; Adam, W.2; Ambrogi, F.2; Asilar, E.2; Bergauer, T.2; Brandstetter, J.2; Dragicevic, M.2; Eroe, J.2; Del Valle, A. Escalante2 |
| 刊名 | Physical review letters
 |
| 出版日期 | 2018-06-04 |
| 卷号 | 120期号:23页码:17 |
| ISSN号 | 0031-9007 |
| DOI | 10.1103/physrevlett.120.231801 |
| 通讯作者 | Sirunyan, a. m.() |
| 英文摘要 | The observation of higgs boson production in association with a top quark-antiquark pair is reported, based on a combined analysis of proton-proton collision data at center-of-mass energies of root s = 7, 8, and 13 tev, corresponding to integrated luminosities of up to 5.1, 19.7, and 35.9 fb(-1), respectively. the data were collected with the cms detector at the cern lhc. the results of statistically independent searches for higgs bosons produced in conjunction with a top quark-antiquark pair and decaying to pairs of w bosons, z bosons, photons, tau leptons, or bottom quark jets are combined to maximize sensitivity. an excess of events is observed, with a significance of 5.2 standard deviations, over the expectation from the background-only hypothesis. the corresponding expected significance from the standard model for a higgs boson mass of 125.09 gev is 4.2 standard deviations. the combined best fit signal strength normalized to the standard model prediction is 1.26(-0.26)(+0.31). |
| WOS关键词 | MASSLESS PARTICLES ; BROKEN SYMMETRIES ; GAUGE ; TOOLKIT ; BOSONS |
| WOS研究方向 | Physics |
| WOS类目 | Physics, Multidisciplinary |
| 语种 | 英语 |
| WOS记录号 | WOS:000434020400003 |
| 出版者 | AMER PHYSICAL SOC |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2177532 |
| 专题 | 高能物理研究所 |
| 通讯作者 | Sirunyan, A. M. |
| 作者单位 | 1.Yerevan Phys Inst, Yerevan, Armenia 2.Inst Hochenergiephys, Vienna, Austria 3.Inst Nucl Problems, Minsk, BELARUS 4.Univ Antwerp, Antwerp, Belgium 5.Vrije Univ Brussel, Brussels, Belgium 6.Univ Libre Bruxelles, Brussels, Belgium 7.Univ Ghent, Ghent, Belgium 8.Catholic Univ Louvain, Louvain La Neuve, Belgium 9.Ctr Brasileiro Pesquisas Fis, Rio De Janeiro, Brazil 10.Univ Estado Rio de Janeiro, Rio De Janeiro, Brazil |
| 推荐引用方式 GB/T 7714 | Sirunyan, A. M.,Tumasyan, A.,Adam, W.,et al. Observation of (tt)over-barh production[J]. Physical review letters,2018,120(23):17. |
| APA | Sirunyan, A. M..,Tumasyan, A..,Adam, W..,Ambrogi, F..,Asilar, E..,...&Almond, J..(2018).Observation of (tt)over-barh production.Physical review letters,120(23),17. |
| MLA | Sirunyan, A. M.,et al."Observation of (tt)over-barh production".Physical review letters 120.23(2018):17. |
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